# The Kit

> DIY and educational kits: robotics, car chassis, robotic arms, adjustable power supplies, FM-AM radios, Tesla coils, Arduino/RFID starter kits

- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Category page: https://sigmanortec.ro/en/the-kit
- Category: Mechatronics and IoT > The Kit
- Prices: RON, VAT included; prices and stock as of 2026-10-22 00:50 (Europe/Bucharest)

## Subcategories

- [Robotics Kits](https://sigmanortec.ro/en/llms/c/169.md): Robotics kits: 2WD/4WD chassis, robotic arms, RC cars, ESP32/ESP32-CAM robots, unassembled DIY kits (14 products)
- [Educational Kits](https://sigmanortec.ro/en/llms/c/201.md): STEM educational kits: electronics experiments, magnetism, Stirling motors, solar robotics, Micro:Bit and Arduino boards (10 products)
- [DIY Electronics Kits](https://sigmanortec.ro/en/llms/c/215.md): DIY assembly kits: radar, clocks, FM radios, amplifiers, adjustable power supplies, metal detectors and electronic games. (33 products)
- [Arduino Starter Kits](https://sigmanortec.ro/en/llms/c/275.md): Arduino starter kits with UNO R3/R4 boards, sensors, RFID and wireless modules for learning and projects (5 products)

## Products (54)

### DDS Function Generator, Adjustable Frequency
- Page: https://sigmanortec.ro/en/dds-function-generator-adjustable-frequency
- Details: https://sigmanortec.ro/en/llms/p/220.md
- Price: 109.51 RON
- Availability: In stock; 1-2 zile
- Reference: 33254 · EAN: 5942176166195

Unassembled kit for a DDS function generator with adjustable frequency up to 8MHz. Generates sine, square, saw, rev raw, triangle, ECG and noise waveforms, with adjustable amplitude and offset. Features a 1602 LCD display with a 5-button keypad, two outputs (DDS and HS square signal), and remembers the last setting after restart. Power supply +5V/+12V/-12V, dimensions 80x80mm.

### Solar insect
- Page: https://sigmanortec.ro/en/solar-insect
- Details: https://sigmanortec.ro/en/llms/p/236.md
- Price: 20.63 RON
- Availability: In stock; 1-2 zile
- Reference: 22142 · EAN: 5945163343418

Solar insect is an educational toy featuring a green solar panel rated 0.5VDC, sized 30 x 18mm, connected to a vibration motor that makes the insect move when exposed to light. Metal legs provide stable movement, while the eyes and antennae move along with the insect. The solar panel can be removed and reused in other small projects.

### Mini Tesla Speaker Coil Kit
- Page: https://sigmanortec.ro/en/mini-tesla-speaker-coil-kit
- Details: https://sigmanortec.ro/en/llms/p/248.md
- Price: 54.97 RON
- Availability: In stock; 1-2 zile
- Reference: 33009 · EAN: 5944799820164

Mini Tesla Speaker Coil Kit (ref. 33009) for assembling a Tesla coil with plasma effect that reproduces sound when connected to an audio source (3.5 mm jack). The generated electric field lights up LEDs when approached. Input voltage: 15-24VDC, power: 15W. Supplied unassembled, with no instructions beyond those printed on the PCB, requiring electronics knowledge. Power supply not included.

### Acrylic robotic arm kit 4 axes
- Page: https://sigmanortec.ro/en/acrylic-robotic-arm-kit-4-axes
- Details: https://sigmanortec.ro/en/llms/p/249.md
- Price: 49.30 RON
- Availability: In stock; 1-2 zile
- Reference: 33077 · EAN: 5948194877549
- Specifications: Material: Acrilic

Unassembled kit for a 4-axis acrylic robotic arm, suitable for educational projects, prototyping and automation experiments. Includes the acrylic frame structure and a complete set of screws and nuts for frame assembly, allowing 4 degrees of freedom and compatible with SG90 and MG90S servomotors. Assembly tutorial available in PDF format. Servomotors are not included.

### Electronic clock kit, AT89C2051
- Page: https://sigmanortec.ro/en/electronic-clock-kit-at89c2051
- Details: https://sigmanortec.ro/en/llms/p/251.md
- Price: 28.17 RON
- Availability: In stock; 1-2 zile
- Reference: 33402 · EAN: 5945867207917

DIY kit for building a fully functional electronic clock with display, based on the AT89C2051 microcontroller. Power supply 6-12V, PCB dimensions 90 x 70mm. Assembly requires attention to component polarity (electrolytic capacitors, LEDs, IC) and needs 3 jumpers. The firmware can be rewritten using the .bin file available in the Download section with a compatible programmer.

### Solar car kit
- Page: https://sigmanortec.ro/en/solar-car-kit
- Details: https://sigmanortec.ro/en/llms/p/265.md
- Price: 17.70 RON
- Availability: Out of stock
- Reference: 22143 · EAN: 5948334085223

DIY educational kit for manual assembly, solar car made of ABS in black and green. Operates solely on solar energy, without batteries, moving in direct sunlight at moderate speed, stable but without climbing or off-road capability. Dimensions: 80 x 75 x 32mm. The kit includes all components needed for assembly, suited for STEM activities.

### Metal detector kit 60mm
- Page: https://sigmanortec.ro/en/metal-detector-kit-60mm
- Details: https://sigmanortec.ro/en/llms/p/266.md
- Price: 15.55 RON
- Availability: In stock; 1-2 zile
- Reference: 33015 · EAN: 5942665558296

Metal detector kit for DIY projects and prototypes, with a detection depth of 60 mm. Provides acoustic and light signaling for immediate confirmation. Operates at 3-5VDC. Dimensions: 86 x 61 mm, compact format suitable for installations in reduced spaces.

### FM/AM Radio Kit, DIY
- Page: https://sigmanortec.ro/en/fm-am-radio-kit-diy
- Details: https://sigmanortec.ro/en/llms/p/273.md
- Price: 37.62 RON
- Availability: In stock; 1-2 zile
- Reference: 33375 · EAN: 5948418485291

Build yourself an AM/FM radio for learning and DIY projects, the kit integrates CD9088 for FM reception and AM7642 for AM reception, offers searching and listening to stations in the two bands, is powered by 3VDC with 2 AA batteries, is ideal for electronics experiments and developing assembly skills.
The CF210SP kit is a dual-band radio receiver, capable of receiving both FM and AM stations, ideal for electronics enthusiasts and students who want to learn through practice how a complete radio receiver works. The kit is delivered with all the components necessary for assembly and includes a printed circuit board (PCB), on which the values and positions of each component are clearly marked.

### RFID Starter Kit V1, Arduino compatible
- Page: https://sigmanortec.ro/en/rfid-starter-kit-v1-arduino-compatible
- Details: https://sigmanortec.ro/en/llms/p/277.md
- Price: 198.37 RON
- Availability: Out of stock
- Reference: 33076 · EAN: 5944503923785

RFID Starter Kit V1, Arduino compatible, with Uno R3 board, RFID module with card and keychain, 830 breadboard, jumper and dupont cables. Includes sensors (LM35, flame, photoresistor), displays (1602 LCD, 8x8 dot matrix, 4-digit display), stepper motor, 9g servo, relay module, clock module, IR remote control and buzzer. Does not include usage or assembly instructions.

### Line Follower Robot Kit
- Page: https://sigmanortec.ro/en/line-follower-robot-kit
- Details: https://sigmanortec.ro/en/llms/p/278.md
- Price: 26.60 RON
- Availability: In stock; 1-2 zile
- Reference: 33281 · EAN: 5949608494116

Unassembled DIY kit for a line follower robot, suitable for educational projects. No programming required; calibration is done using two potentiometers. The PCB has markings indicating component placement and requires basic soldering skills. The A4 format track can be downloaded from the Download section. Powered by 2 AA batteries, not included.

### 2WD car chassis kit, line follower
- Page: https://sigmanortec.ro/en/2wd-car-chassis-kit-line-follower
- Details: https://sigmanortec.ro/en/llms/p/281.md
- Price: 41.33 RON
- Availability: In stock; 1-2 zile
- Reference: 33455 · EAN: 5949635228234

2WD chassis kit for a line-following car, featuring an acrylic chassis, 2 geared motors with encoders for speed control, a caster wheel for stability and an On/Off switch. Steering is achieved through differential motor speed. Includes mounting accessories, M3 x 12 spacers and M3 screws. Designed to be paired with a development board, H-bridge and line sensor module.

### Smart Car 2WD Chassis Kit
- Page: https://sigmanortec.ro/en/smart-car-2wd-chassis-kit
- Details: https://sigmanortec.ro/en/llms/p/283.md
- Price: 48.40 RON
- Availability: In stock; 1-2 zile
- Reference: 33260 · EAN: 5945883230913

Smart Car 2WD Chassis for Arduino projects, ideal for quickly building a two-tier mobile robot, easy to assemble. Includes round acrylic plate, 2 1:48 geared motors, 2 65mm wheels and universal wheel, plus mounting hardware. Supports encoder mounting for speed and distance measurement, suitable for line tracking, obstacle avoidance and wireless control.
Acrylic robot car chassis kit with 2 motorized wheels and speed encoder, ideal for Arduino projects.
The kit includes the necessary elements for assembling the chassis.
The pictures are for informational purposes and there may be slight differences in parts depending on the batch (which do not affect its functionality).

### Smart Car 4WD chassis kit
- Page: https://sigmanortec.ro/en/smart-car-4wd-chassis-kit
- Details: https://sigmanortec.ro/en/llms/p/284.md
- Price: 88.89 RON
- Availability: In stock; 1-2 zile
- Reference: 33200 · EAN: 5948335610943

Mechanical chassis kit for Smart Car 4WD, made of acrylic, supplied without electronics. Includes 4 geared motors 3-6VDC, 4xAA battery holder, 4 encoders for measuring wheel speed, wheels and tires, hexagonal standoffs, and a minimal set of M3 screws and nuts. A separate microcontroller and extra M3 screws/nuts are needed for full assembly.

### Smart Car Kit 4WD, Bluetooth, IR, Ultrasound
- Page: https://sigmanortec.ro/en/smart-car-kit-4wd-bluetooth-ir-ultrasound
- Details: https://sigmanortec.ro/en/llms/p/286.md
- Price: 267.80 RON
- Availability: In stock; 1-2 zile
- Reference: 33199 · EAN: 5942944856372

Kit for building a 4WD robot car controllable via Bluetooth or IR remote control, suitable for Arduino projects. Includes chassis with 4 motors and wheels, L298N driver and UNO compatible board, plus sensors for obstacle avoidance with HC-SR04 and line tracking with IR modules, providing the basis for manual control or autonomous operation.
Intelligent 4WD robot kit, controllable via Bluetooth or IR, obstacle avoidance and line following functions.
For assembly instructions and example code access the link: Smart Car Tutorial
Attention: There are many codes with different configurations available online as "open source". This is not a "standard" kit with step-by-step instructions.

### Kit Adjustable power supply 220VAC to 1.25-12VDC, LM317, with housing
- Page: https://sigmanortec.ro/en/kit-adjustable-power-supply-220vac-to-125-12vdc-lm317-with-housing
- Details: https://sigmanortec.ro/en/llms/p/287.md
- Price: 64.65 RON
- Availability: Out of stock
- Reference: 33532 · EAN: 5943125486043
- Specifications: Minimum Output Voltage: 1.25; Maximum Output Voltage: 12; Source Type: descend; Voltage Adjustment: Yes; Adjustment Type: Variable; Input Voltage Type: AC; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Unassembled kit for making an adjustable voltage source, ideal for laboratory, testing and electronic projects. Powered by 220VAC and offers adjustable DC output 1.25-12V with LM317 regulator, includes all components, EU plug cable and acrylic housing, power 2W, compact dimensions 120 x 70 x 48 mm.
Unassembled kit for building an adjustable voltage power supply. It contains all the components necessary for its assembly, an EU plug cable, and an acrylic case.
The power supply can also be used as an adjustable signal generator.
The kit is NOT assembled, electronics knowledge is required.
Kit contents:
Specifications:
Power supply voltage: 220VAC
Power: 2W …

### UNO R3 Starter Kit, V8
- Page: https://sigmanortec.ro/en/uno-r3-starter-kit-v8
- Details: https://sigmanortec.ro/en/llms/p/865.md
- Price: 187.37 RON
- Availability: Out of stock
- Reference: 9059 · EAN: 5947329175031

Arduino starter kit with compatible UNO R3 board, organized in a modular two-tier box. Includes prototyping shield with breadboard, LCD1602, 8x8 LED matrix, SG90 servo motor, stepper motor with ULN2003 driver, LM35 temperature sensor, infrared receiver and remote, buzzers, photoresistors, resistors, Dupont wires and USB cable. Does not include instructions.

### 3D Christmas tree kit
- Page: https://sigmanortec.ro/en/3d-christmas-tree-kit
- Details: https://sigmanortec.ro/en/llms/p/890.md
- Price: 20.49 RON
- Availability: In stock; 1-2 zile
- Reference: 9083 · EAN: 5945875148707

3D Christmas tree kit (ref. 9083), unassembled, made of 1 base PCB and 2 tree PCBs that interlock to form the 3D shape. Powered at 5V via MicroUSB connector (not included). Component placement is marked on the PCB. Colored 3mm LEDs provide fixed light, switching via a button. Includes transistors, capacitors, MicroUSB port and button.

### Crystal frequency tester module kit, 1Hz-50MHz
- Page: https://sigmanortec.ro/en/crystal-frequency-tester-module-kit-1hz-50mhz
- Details: https://sigmanortec.ro/en/llms/p/896.md
- Price: 44.53 RON
- Availability: In stock; 1-2 zile
- Reference: 9088 · EAN: 5949830922104

DIY kit for testing crystal frequency in the range 1Hz-50MHz. Powered at 5-9VDC, with auto shutdown after 15 seconds without frequency variation to save energy. Compact PCB measuring 80x53mm, the kit requires assembly. Only tested for crystal frequency measurement, other functions have not been verified.

### Tank chassis kit, T101, aluminum, 12V motors
- Page: https://sigmanortec.ro/en/tank-chassis-kit-t101-aluminum-12v-motors
- Details: https://sigmanortec.ro/en/llms/p/1033.md
- Price: 195.64 RON
- Availability: In stock; 1-2 zile
- Reference: 9168 · EAN: 5944143963998

Tank chassis kit T101, with base made of aluminum alloy and ABS plastic tracks, for mobile robotics projects. Includes two geared motors, voltage 6-12V, no-load current 100mA, no-load speed 170-350 rpm. Tracks can be tensioned by removing segments. Dimensions 193 x 163 x 60mm, weight 470g, color black, blue or silver depending on batch. Reference 9168.

### DIY remote control car kit, wood, 4x4
- Page: https://sigmanortec.ro/en/diy-remote-control-car-kit-wood-4x4
- Details: https://sigmanortec.ro/en/llms/p/1386.md
- Price: 45.12 RON
- Availability: In stock; 1-2 zile
- Reference: 9280 · EAN: 5947718950676

DIY wooden kit for assembling a 4x4 remote control car, no soldering required (optionally recommended on motor wires). Radio control forward/backward, 4x4 transmission via elastic band to the front axle. Power: car 3V (2 AA batteries), remote 3V (2 AA batteries), batteries not included. Material: wood. Car dimensions: 15 x 6.5 x 9cm. Reference 9280.

### CHA-81 DIY kit, 9x9 LED matrix, graphic effects
- Page: https://sigmanortec.ro/en/cha-81-diy-kit-9x9-led-matrix-graphic-effects
- Details: https://sigmanortec.ro/en/llms/p/1736.md
- Price: 44.81 RON
- Availability: In stock; 1-2 zile
- Reference: 9629 · EAN: 5942351476415

CHA-81 DIY kit for assembling a 9x9 LED matrix with graphic effects, suitable for educational projects and interactive prototypes. Includes PCB and all electronic components, with assembly and polarity markings printed on the board. Operates at DC 5V-9V, powered via USB or external battery (not included). Supplied unassembled and requires soldering.

### Electronic, physical and electromagnetic experiment kit
- Page: https://sigmanortec.ro/en/electronic-physical-and-electromagnetic-experiment-kit
- Details: https://sigmanortec.ro/en/llms/p/1757.md
- Price: 355.20 RON
- Availability: In stock; 1-2 zile
- Reference: 9648 · EAN: 5945800755314

Educational kit (ref. 9648, EAN 5945800755314) for experiments in electromagnetism, electrical circuits and physics. Includes an assembly platform, ammeter, voltmeter, coils, magnets, electromagnet, small motor, LEDs, bulbs, switches, resistors, compass, electroscope and other parts, plus an illustrated guide and a downloadable English manual. Suitable for classroom or home use under adult supervision.

### DIY kit Digital panel ammeter, ICL7107, 5VDC, 0-2A, LED display
- Page: https://sigmanortec.ro/en/diy-kit-digital-panel-ammeter-icl7107-5vdc-0-2a-led-display
- Details: https://sigmanortec.ro/en/llms/p/1778.md
- Price: 48.29 RON
- Availability: In stock; 1-2 zile
- Reference: 9668 · EAN: 5944093349835
- Specifications: Nominal Current: 0 - 2 A; Input Voltage: 5 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Quickly build a panel ammeter with red LED display, ideal for monitoring current in DC sources and circuits. The kit uses ICL7107 for stable conversion and clear reading, operates at 5VDC, measures 0-2A with good accuracy and allows easy calibration from the potentiometer. Suitable for DIY projects, laboratory and industrial applications.
The DIY Kit for Digital Panel Ammeter with ICL7107 is the perfect solution for electronics enthusiasts who want to build their own panel ammeter with digital LED display.

### Ignition generator module, DIY Kit, 15KV, 3.7-4.2V
- Page: https://sigmanortec.ro/en/ignition-generator-module-diy-kit-15kv-37-42v
- Details: https://sigmanortec.ro/en/llms/p/1816.md
- Price: 14.24 RON
- Availability: In stock; 1-2 zile
- Reference: 9703 · EAN: 5947749718535
- Specifications: Supply Voltage: 3.7 V; Maximum Input Voltage: 4.2 V; Output Voltage: 15 kV; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DIY kit for a high-voltage ignition generator module, ref. 9703. Powered by DC 3.7-4.2V, output voltage up to 15KV, output power 6W, output current 2A. Type: ignition coil. Supplied as a kit requiring assembly by soldering, suited for hobbyists with basic electronics knowledge.

### Multifunctional Tesla coil, music playback, Bluetooth
- Page: https://sigmanortec.ro/en/multifunctional-tesla-coil-music-playback-bluetooth
- Details: https://sigmanortec.ro/en/llms/p/1822.md
- Price: 270.73 RON
- Availability: In stock; 1-2 zile
- Reference: 9709 · EAN: 5946538493257

Multifunctional Tesla coil, assembled DIY kit, plays music through an electric arc via Bluetooth (integrated MH-M18 module), with adjustable pulse mode for rhythmic effects. Allows wireless energy transfer experiments to light the included LEDs. Powered by 48VDC, DC connector 5.5x2.1mm, integrated heatsink. Overall dimensions 106 x 106 x 61mm. Suited for educational demonstrations and science projects.

### DIY electric spider kit, unassembled
- Page: https://sigmanortec.ro/en/diy-electric-spider-kit-unassembled
- Details: https://sigmanortec.ro/en/llms/p/1824.md
- Price: 48.94 RON
- Availability: In stock; 1-2 zile
- Reference: 9711 · EAN: 5947494601618

Build a robotic spider that moves sideways, powered by a motor and synchronized gears. Unassembled DIY set, powered by 1 AA battery (not included), non-toxic transparent multicolor plastic parts. Ideal for introduction to mechanics and engineering, develops logical thinking and problem solving, video-tutorial available on the page for assembly in repeated segments.
Unassembled kit that allows you to build a robotic spider that moves sideways, using a motor, an AA battery (not included) and a series of synchronized gears.
Designed to stimulate children's interest in mechanics and engineering, this toy encourages youngsters to build their own walking spider robot.

### DIY Fidget Spinner Kit, with LED, SMD
- Page: https://sigmanortec.ro/en/diy-fidget-spinner-kit-with-led-smd
- Details: https://sigmanortec.ro/en/llms/p/1829.md
- Price: 38.04 RON
- Availability: In stock; 1-2 zile
- Reference: 9712 · EAN: 5948622794684

DIY kit for assembling a fidget spinner with LEDs, intended for practicing SMD soldering. Includes PCB, SMD components, transparent plastic housing and bearing for smooth rotation. The LEDs light up during rotation. Requires 3 CR1620 batteries, not included. Soldering with a hot air gun is recommended, though a soldering iron also works. Difficulty level: intermediate.

### AC-DC power supply module kit, continuously adjustable, 0-30V, 2mA-3A, unassembled
- Page: https://sigmanortec.ro/en/ac-dc-power-supply-module-kit-continuously-adjustable-0-30v-2ma-3a-unassembled
- Details: https://sigmanortec.ro/en/llms/p/1888.md
- Price: 34.30 RON
- Availability: Out of stock
- Reference: 9755 · EAN: 5945078052986
- Specifications: Minimum Output Voltage: 0; Maximum Output Voltage: 30; Source Type: descend; Current Adjustment: Yes; Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Output Current: 3; Input Voltage Type: AC; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Unassembled kit for an adjustable AC-DC power supply module with output voltage 0-30VDC and output current 2mA-3A, both continuously adjustable. Through-hole components, PCB marked for easy assembly. Includes overcurrent and short-circuit protection with LED indicator. Requires a 24V AC transformer for power. Suitable for lab use, DIY projects and soldering practice.

### STEM electronics experiment kit, model 3688, 91 pieces
- Page: https://sigmanortec.ro/en/stem-electronics-experiment-kit-model-3688-91-pieces
- Details: https://sigmanortec.ro/en/llms/p/1995.md
- Price: 379.11 RON
- Availability: Out of stock
- Reference: R-9814 · EAN: 5943149341298
- Specifications: Model: 3688

STEM electronics experiment kit, model 3688, with 91 numbered and color-coded pieces, snap-fastener connections on a grid, no soldering or tools required. Allows building over 511 functional projects such as an AM/FM radio, fan, generator or voice recorder. Requires AA batteries, not included. Recommended age: 8+ years.

### DIY retro game console kit, with case
- Page: https://sigmanortec.ro/en/diy-retro-game-console-kit-with-case
- Details: https://sigmanortec.ro/en/llms/p/1996.md
- Price: 86.42 RON
- Availability: In stock; 1-2 zile
- Reference: 9815 · EAN: 5941450233134

Build your own retro console and enjoy a complete DIY project, with assembly and soldering for electronics enthusiasts. Includes 4 classic games, Snake, Plane, Racing and Tts, 8x16 LED display from two matrices plus 3-digit score display, buzzer for retro sounds with volume switch and adjustable brightness. Powered by 4 AA batteries or USB.
DIY kit of retro games, unassembled, ideal for electronics enthusiasts and classic game nostalgics who want to assemble a retro console themselves.

### DIY FM radio kit, RDA5807S, with housing
- Page: https://sigmanortec.ro/en/diy-fm-radio-kit-rda5807s-with-housing
- Details: https://sigmanortec.ro/en/llms/p/1998.md
- Price: 89.60 RON
- Availability: Out of stock
- Reference: 9817 · EAN: 5942410762985

Unassembled FM radio DIY kit, ideal for electronics and RF enthusiasts, offers clear reception on 87-108 MHz with RDA5807S module and noise reduction functions, displays frequency on digital display, includes TDA2822 amplifier for powerful sound, is powered by 5V via MicroUSB or 2 AA batteries and comes with acrylic case for protection and clean appearance.
Unassembled FM Radio Kit with RDA5807S, ideal for electronics and radio frequency enthusiasts. It uses a Nixie tube RDA5807S radio module, known for its global compatibility with FM reception bands and advanced noise cancellation and sound enhancement functions.

### DIY alarm kit, LED clock, with animations and light sensor, acrylic case
- Page: https://sigmanortec.ro/en/diy-alarm-kit-led-clock-with-animations-and-light-sensor
- Details: https://sigmanortec.ro/en/llms/p/1999.md
- Price: 56.51 RON
- Availability: Out of stock
- Reference: 9818 · EAN: 5944191312380

DIY kit for assembling an electronic clock with alarm, acrylic case. After assembly it produces an LED display with 13 animations simulating clock hands, an alarm with piezo buzzer, a light sensor and a temperature sensor. Powered by 5V via USB. Includes STC15W408AS microcontroller and DS1302 RTC chip. Educational soldering practice project for hobbyists.

### DIY Fidget Spinner Kit, SMD, LED Animations
- Page: https://sigmanortec.ro/en/diy-fidget-spinner-kit-smd-led-animations
- Details: https://sigmanortec.ro/en/llms/p/2002.md
- Price: 21.73 RON
- Availability: In stock; 1-2 zile
- Reference: 9821 · EAN: 5942948489750

DIY Fidget Spinner kit with two blades, SMD, featuring a microcontroller board and 12 SMD LEDs that display text and patterns while spinning. Assembly requires SMD hot air soldering. Power supply: DC 6V, 2x CR2032 (not included). Visual effects can be customized via an external downloader (e.g. PL2303) using the VCC, GND, TX, RX pins on the PCB. Dimensions: 79 x 26 mm.

### DIY electronic firefly kit, photosensitive, light tracking
- Page: https://sigmanortec.ro/en/diy-electronic-firefly-kit-photosensitive-light-tracking
- Details: https://sigmanortec.ro/en/llms/p/2009.md
- Price: 39.54 RON
- Availability: In stock; 1-2 zile
- Reference: 9822 · EAN: 5943057068560

DIY kit for learning soldering and basic electronics, using THT components mounted on a PVC base. Assembles into a small photosensitive robot with two photoresistors and two vibration motors that tracks the light of a flashlight. The 5 mm blue LED pulses automatically, mimicking a firefly. Powered by DC 3V via a CR2032 battery, not included.

### Waveshare PiRacer kit, DonkeyCar support, AI
- Page: https://sigmanortec.ro/en/waveshare-piracer-kit-donkeycar-support-ai
- Details: https://sigmanortec.ro/en/llms/p/2019.md
- Price: 1497.21 RON
- Availability: In stock; 1-2 zile
- Reference: 9829 · EAN: 5945778201233

DonkeyCar-based AI racing robot kit, ideal for deep learning training and autonomous driving testing with Raspberry Pi 4 not included. Includes 5MP 160 wide-angle camera for real-time visual analysis with TensorFlow and OpenCV, metal chassis with expansion board without unnecessary cables and flexible control via wireless gamepad or web interface. Unassembled kit, requires 3 18650 batteries not included.
Kit PiRacer AI Racing Robot designed for those passionate about artificial intelligence and autonomous driving.

### Stirling Engine Experiment Model, Hot Air
- Page: https://sigmanortec.ro/en/stirling-engine-experiment-model-hot-air
- Details: https://sigmanortec.ro/en/llms/p/2163.md
- Price: 191.54 RON
- Availability: Out of stock
- Reference: 9993 · EAN: 5942220130004

Fully functional Stirling engine experiment model using hot air, made of metal, reference 9993. It is heated with the included lamp (requires 95% alcohol) and started by gently pushing the flywheel. Via pulley and belt it drives an electric motor used as a generator, allowing an LED to light up. Dimensions approximately 150 x 70 mm, weight approximately 480 g. Suitable for educational purposes.

### Robotic Arm Kit, Metal, 6 Axis
- Page: https://sigmanortec.ro/en/robotic-arm-kit-metal-6-axis
- Details: https://sigmanortec.ro/en/llms/p/2178.md
- Price: 201.16 RON
- Availability: In stock; 1-2 zile
- Reference: 88013 · EAN: 5941529351677

Unassembled kit for building a robotic arm with 6 degrees of freedom (6 DOF). Constructed from 2 mm aluminum, black color, compatible with 6 MG996R servomotors (not included), supply voltage 4.2-7.8V. Set weight without servomotors: 483g. Includes arm set, screw set, servo extension, cable spiral, screwdriver. No assembly instructions included; a control board for the servomotors is also required.

### DIY Magnetic Levitation Kit, unassembled, 12V
- Page: https://sigmanortec.ro/en/diy-magnetic-levitation-kit-unassembled-12v
- Details: https://sigmanortec.ro/en/llms/p/2193.md
- Price: 230.72 RON
- Availability: In stock; 1-2 zile
- Reference: 88039 · EAN: 5942258300240

Unassembled DIY kit for magnetic levitation, operates at 12V 2A (power supply not included). Allows building a circuit with PID control and magnetic field sensors to levitate and stabilize a magnet. Components are soldered onto a PCB with clear markings. Medium difficulty level, weight 310 g, dimensions 85 x 85 mm. Does not include written instructions, suitable for STEM projects or technical hobby use.

### DIY Calculator Kit, LCD1602
- Page: https://sigmanortec.ro/en/diy-calculator-kit-lcd1602
- Details: https://sigmanortec.ro/en/llms/p/2199.md
- Price: 84.05 RON
- Availability: In stock; 1-2 zile
- Reference: 88045 · EAN: 5948723487447

Unassembled DIY kit for an electronic calculator with LCD1602 display, reference 88045. Offers basic arithmetic operations, decimal-hexadecimal conversion, resistor value calculation by color code (4 or 5 bands), LED resistor calculation and a square root function. Requires soldering components onto the PCB and runs on 2 CR2032 batteries (not included). Plastic housing, black color, dimensions 126x86x36mm.

### Freenove UNO R4 WiFi Starter Kit, 286 pieces
- Page: https://sigmanortec.ro/en/freenove-uno-r4-wifi-starter-kit-286-pieces
- Details: https://sigmanortec.ro/en/llms/p/2237.md
- Price: 462.41 RON
- Availability: Out of stock
- Reference: 88074 · EAN: 5941291152335

Complete kit to learn Arduino, electronics and robotics through 78 guided projects, with UNO R4 WiFi board and integrated LED matrix, generous set of sensors, motors and displays for experiments from basic to advanced, PDF tutorial in English for quick setup and step-by-step exercises, ideal for school, laboratory or hobby.
Starter kit in the world of Arduino, Freenove brand, created for those who want to learn electronics and robotics in a practical and accessible way.

### Wireless Remote Control Kit, Freenove with tutorial, NRF24L01
- Page: https://sigmanortec.ro/en/wireless-remote-control-kit-freenove-with-tutorial-nrf24l01
- Details: https://sigmanortec.ro/en/llms/p/2238.md
- Price: 268.24 RON
- Availability: In stock; 1-2 zile
- Reference: 88076 · EAN: 5948845321513

DIY kit for building a functional wireless remote control, based on the Freenove UNO R3 board (compatible with Arduino UNO R3, ATmega328P, 16 MHz, 5V, USB-C) and two NRF24L01 modules (2.4GHz, SPI, 3.3V) for transmitter and receiver. Includes assembly accessories, a 9V battery holder (battery not included) and a step-by-step tutorial on GitHub in English. Requires technical knowledge.

### Robot kit, Self Balancing Triangle, ESP32
- Page: https://sigmanortec.ro/en/robot-kit-self-balancing-triangle-esp32
- Details: https://sigmanortec.ro/en/llms/p/2241.md
- Price: 533.97 RON
- Availability: In stock; 1-2 zile
- Reference: 88078 · EAN: 5947217347526

Robot kit, self balancing triangle with ESP32 microcontroller, programmable via Arduino IDE or PlatformIO. Uses an LQR algorithm for balance, with a motor and metal wheel acting as stabilizer. Features RGB lights, comes pre-assembled, charges via USB Type-C and runs on a LiPo battery. Dimensions: 90mm (L) x 35mm (H), weight 40g. Package includes the robot and a mouse pad.

### Kit Smart Car 4WD, WiFi, ESP32-CAM, with Tutorial
- Page: https://sigmanortec.ro/en/kit-smart-car-4wd-wifi-esp32-cam-with-tutorial
- Details: https://sigmanortec.ro/en/llms/p/2242.md
- Price: 415.11 RON
- Availability: In stock; 1-2 zile
- Reference: 88079 · EAN: 5945209383422

Build a complete 4WD robot, controllable via WiFi, with real-time video transmission for robotics and automation experiments. Includes ESP32-CAM board with WiFi and Bluetooth, web interface for control from phone or PC, external antenna for stable signal and sturdy acrylic chassis with 4 independent motors. Comes unassembled, with English tutorial for assembly and programming.
The 4WD Smart Robot Kit is an excellent solution for electronics and robotics enthusiasts who want to build a fully functional robot with WiFi control and video transmission.

### Circular Electromagnetic Accelerator Kit, Cyclotron
- Page: https://sigmanortec.ro/en/circular-electromagnetic-accelerator-kit-cyclotron
- Details: https://sigmanortec.ro/en/llms/p/2246.md
- Price: 361.20 RON
- Availability: In stock; 1-2 zile
- Reference: 88084 · EAN: 5941040663662

Educational demonstration kit for visualizing the circular acceleration of charged particles. Circular track with acrylic base, 4 electromagnetic coils and 4 inductive sensors propel the metal balls clockwise, with an LED confirming each detection on every coil. Powered by 12V DC, power supply included. Circuit diameter 25cm. Package: 1 circular track, 1 power supply, 2 metal balls. Ref. 88084.

### 2WD Chassis Kit, Aluminum, Frame, Wheels and 6V Motors
- Page: https://sigmanortec.ro/en/2wd-chassis-kit-aluminum-frame-wheels-and-6v-motors
- Details: https://sigmanortec.ro/en/llms/p/2250.md
- Price: 69.38 RON
- Availability: In stock; 1-2 zile
- Reference: 88087 · EAN: 5944534172411
- Specifications: Input Voltage: 6 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Material: Aluminiu

2WD aluminum chassis, sturdy and lightweight, ideal for educational and hobby robotics projects. Includes two 6V DC geared motors, two good grip wheels and a swivel wheel for stability, turning is done by speed difference for precise control. The perforated frame allows for quick mounting of sensors and boards, compatible with Arduino and double H-bridge.
Robust and easy to customize aluminum smart car kit, perfect for educational and hobby robotics projects.
The aluminum chassis ensures strength and light weight and the design includes multiple perforations for easy mounting of sensors and control boards.

### Mini Radar Kit, DIY, Ultrasound, 1.8 Display and UNO R3
- Page: https://sigmanortec.ro/en/mini-radar-kit-diy-ultrasound-18-display-and-uno-r3
- Details: https://sigmanortec.ro/en/llms/p/2243.md
- Price: 369.96 RON
- Availability: In stock; 1-2 zile
- Reference: 88080 · EAN: 5940766987502

DIY kit for a mini radar with obstacle detection via ultrasound, based on a UNO R3 compatible board. Includes HC-SR04 sensor, SG90 180 degree servo motor, 1.8 inch color TFT display (128x160 pixels, ILI9341 driver). Power supply 5-12V DC, programming via Arduino IDE. Dimensions 135x85x85mm. Requires experience in electronics and programming, no step-by-step instructions included.

### Audio amplifier kit, DIY, TPA3116D2, 50Wx2, 100Wx1, 2.1, HiFi, with case
- Page: https://sigmanortec.ro/en/audio-amplifier-kit-diy-tpa3116d2-50wx2-100wx1-21-hifi-with-case
- Details: https://sigmanortec.ro/en/llms/p/1795.md
- Price: 159.10 RON
- Availability: In stock; 1-2 zile
- Reference: 9684 · EAN: 5947378746190
- Specifications: Type: Amplifier; tension: AD; Power: Over 20W

HiFi 2.1 amplifier for DIY projects, offers 2x50W stereo and 100W on subwoofer for clear sound and powerful bass. Based on TPA3116D2 with high efficiency and low noise, includes NE5532 op-amp and AUX input for quick connection. Transparent acrylic housing highlights the electronics and integrates easily into any setup.
The TPA3116D2 is a HIFI 2.1 audio amplifier with superior sound quality, offering an authentic and dynamic audio experience. With two stereo channels of 50W each and a subwoofer channel of 100W, this amplifier ensures a clear and powerful reproduction of low, medium and high frequencies.

### DIY electronic wristwatch kit, with bracelet, LED, 3V, THT
- Page: https://sigmanortec.ro/en/diy-electronic-wristwatch-kit-with-bracelet-led-3v-tht
- Details: https://sigmanortec.ro/en/llms/p/1776.md
- Price: 48.15 RON
- Availability: Out of stock
- Reference: 9666 · EAN: 5946334023870
- Specifications: Input Voltage: 3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DIY kit for assembling an electronic wristwatch with red LED display and transparent case, silicone strap. Requires THT soldering, through-hole components, no printed instructions (markings on PCB). Powered by 3V DC, CR2032 battery not included, integrated PIC 16F631. Features: time display on button press, automatic sleep after 10s, 12/24h mode, stopwatch, countdown. Case size 52.5x39.5x18.1 mm.

### DIY Bluetooth speaker kit, USB, 2 channels, with case, 5V
- Page: https://sigmanortec.ro/en/diy-bluetooth-speaker-kit-usb-2-channels-with-case-5v
- Details: https://sigmanortec.ro/en/llms/p/1765.md
- Price: 85.82 RON
- Availability: In stock; 1-2 zile
- Reference: 9656 · EAN: 5945107580749
- Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DIY set for assembling a functional Bluetooth speaker, ideal for learning soldering and electronic assembly. Includes two 3W 4Ohm 2-channel speakers, plays music via Bluetooth or directly from USB, has LEDs that pulsate to the rhythm of the music, transparent acrylic housing is mounted with screws, IR remote control for remote control.
Set for assembling a functional bluetooth speaker, with two speakers and LEDs that light up in tune with the music.
It uses two 3W and 4Ohm speakers and can play music even from USB memory sticks. The case is made of acrylic panels that are joined with screws.

### Acoustic suspension kit, ultrasonic, DIY, 12VDC, 16mm, 40KHz
- Page: https://sigmanortec.ro/en/acoustic-suspension-kit-ultrasonic-diy-12vdc-16mm-40khz
- Details: https://sigmanortec.ro/en/llms/p/1756.md
- Price: 81.32 RON
- Availability: In stock; 1-2 zile
- Reference: 9647 · EAN: 5940761008110
- Specifications: Input Voltage: 12VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

DIY acoustic suspension module, allows a polystyrene ball to be levitated between two ultrasonic emitters, ideal for educational demonstrations and lab experiments. Operates at 12VDC, uses 16mm speakers, generates ultrasound at 40MHz and includes expanded polystyrene for quick testing.
The ultrasound generator module that allows the levitation of ultralight objects using a frequency of 40MHz.
The kit includes a piece of expanded polystyrene that you will use for levitation.
This product does not necessarily have a practical purpose but can be used for educational purposes to demonstrate the idea of using sound waves to manipulate physical objects.
Specifications:
Supply voltage: 12VDC …

### Led audio indicator kit LM3915
- Page: https://sigmanortec.ro/en/led-audio-indicator-kit-lm3915
- Details: https://sigmanortec.ro/en/llms/p/262.md
- Price: 17.45 RON
- Availability: In stock; 1-2 zile
- Reference: 33075 · EAN: 5941113661427

DIY VU meter kit based on the LM3915, showing audio signal level via 10 LEDs that light up progressively according to volume. Comes with unsoldered components for assembly, operates at 9-12VDC, with a 62 x 57mm PCB and a socket for the IC. LEDs may be round or rectangular depending on the batch. The IC has an orientation marking that must match the PCB.

### Acoustic control switch kit, clap switch, 5V, ICSK050A
- Page: https://sigmanortec.ro/en/acoustic-switch-kit-icsk050a-kit
- Details: https://sigmanortec.ro/en/llms/p/263.md
- Price: 18.15 RON
- Availability: In stock; 1-2 zile
- Reference: 33383 · EAN: 5944555189191
- Specifications: Input Voltage: 5VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Acoustic control switch kit (clap switch) ICSK050A, 5VDC supply. Bistable output toggles on each clap: HIGH (5V) on first detection, LOW on second. Electret microphone, two-stage amplifier (Q1,Q2), bistable flip-flop circuit (Q3,Q4), status LED, maximum sensitivity around 3kHz. Output on J2 connector, suitable for a 5V relay module or a microcontroller digital input.

### Sensor Starter Kit, Arduino compatible
- Page: https://sigmanortec.ro/en/sensor-starter-kit-arduino-compatible
- Details: https://sigmanortec.ro/en/llms/p/247.md
- Price: 118.47 RON
- Availability: In stock; 1-2 zile
- Reference: 33073 · EAN: 5946432695047

Sensor Starter Kit, Arduino compatible (ref. 33073), includes over 35 KY-series modules covering motion, vibration, sound, light, temperature and humidity detection, switches, joystick, encoder, 5V relay and IR emitter/receiver. Suited for quick learning, breadboard prototyping and DIY or industrial electronic projects.

### Micro:Bit BBC compatible development board, FZ3143
- Page: https://sigmanortec.ro/en/micro-bit-bbc-compatible-development-board-fz3143
- Details: https://sigmanortec.ro/en/llms/p/1411.md
- Price: 182.87 RON
- Availability: In stock; 1-2 zile
- Reference: 9305 · EAN: 5949831661200

The Micro:Bit compatible development board is ideal for learning programming with the visual editor on Microbit.org, offers integrated sensors, 5x5 LED matrix and programmable buttons for interactive projects, allows Bluetooth communication for quick connection to devices, and expansion with external modules and crocodile cables is easy for experiments and prototyping.
Development board compatible with Micro:Bit (not the original version), ideal for learning programming due to the availability of the visual programming interface offered on the official website Microbit.org.