# Serial and CAN Converters

- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Category page: https://sigmanortec.ro/en/serial-and-can-converters
- Category: Mechatronics and IoT > Serial and CAN Converters
- Prices: RON, VAT included; prices and stock as of 2026-10-22 00:56 (Europe/Bucharest)

## Products (21)

### TTL to RS485 converter module, MAX3485, 3.3V
- Page: https://sigmanortec.ro/en/ttl-to-rs485-converter-module-max3485-33v
- Details: https://sigmanortec.ro/en/llms/p/2331.md
- Price: 10.39 RON
- Availability: In stock; 1-2 zile
- Reference: 88169 · EAN: 5941472242688
- Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Main IC: MAX3485; Communication interface: TTL / RS485

TTL to RS485 converter module based on the MAX3485 integrated circuit, 3.3V DC supply voltage. Converts TTL signals bidirectionally into differential RS485 signals, suitable for integration with 3.3V microcontrollers (Arduino, ESP32, STM32). Supports transmission distances up to 1 km (800 m recommended), includes ESD and overvoltage protection, a dedicated external GND pin and direction control via the EN pin for a half-duplex bus.

### TTL to RS485, UART, 3.3-5V converter module
- Page: https://sigmanortec.ro/en/ttl-to-rs485-uart-33-5v-converter-module
- Details: https://sigmanortec.ro/en/llms/p/2144.md
- Price: 14.24 RON
- Availability: In stock; 1-2 zile
- Reference: 9971 · EAN: 5940948294145
- Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

TTL to RS485 converter module, UART, operates at 3.3-5V DC. Allows connecting a microcontroller to an RS485 bus, supports up to 128 devices, features RXD/TXD LEDs, a 120 ohm termination resistor activated via R0 jumper, and external grounding option. Operating temperature -40 to +85 degrees C, recommended transmission distance up to 800 m without repeaters. Suitable for automation and industrial control.

### UART TTL to USB HID converter, CH9329, 5V
- Page: https://sigmanortec.ro/en/uart-ttl-to-usb-hid-converter-ch9329-5v
- Details: https://sigmanortec.ro/en/llms/p/2139.md
- Price: 13.85 RON
- Availability: In stock; 1-2 zile
- Reference: 9968 · EAN: 5948044103873
- Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Quickly transforms UART TTL signal into a USB HID device, automatically recognized by PC as keyboard, mouse or custom HID, ideal for embedded, automation and IoT projects. Operates at 3.3V or 5V, supports ASCII characters and multimedia commands, includes absolute or relative mouse mode, allows software configuration for baud rate, VID PID and working mode.
The CH9329 programmer module transforms UART (TTL) serial communication into a fully functional USB HID device, recognized by any computer as a keyboard, mouse or custom HID device.

### Debug mode, USB to I2C, CP2112
- Page: https://sigmanortec.ro/en/debug-mode-usb-to-i2c-cp2112
- Details: https://sigmanortec.ro/en/llms/p/2010.md
- Price: 43.83 RON
- Availability: In stock; 1-2 zile
- Reference: 9823 · EAN: 5948459686060

USB to I2C module with CP2112 for debugging and quickly connecting SMBus/I2C devices to a PC, ideal for testing and applications such as DJI battery diagnostics. It offers full speed USB 2.0, easy GUI configuration without complex firmware or drivers, 8 configurable GPIO pins, and direct USB power with internal regulator for stable operation on Windows, Mac, and Linux.
CP2112 controller module for connecting USB devices to SMBus/I2C, offering the ability to create applications quickly and efficiently. This module integrates a complete USB 2.0 full-speed controller, a USB transceiver oscillator, and 8 configurable GPI0 pins, providing a high degree of customization.

### USB to DB9 Tata adapter, 9-pin, RS232, HL-340
- Page: https://sigmanortec.ro/en/usb-to-db9-tata-adapter-9-pin-rs232-hl-340
- Details: https://sigmanortec.ro/en/llms/p/1987.md
- Price: 11.68 RON
- Availability: In stock; 1-2 zile
- Reference: 9803 · EAN: 5942228206282

USB to DB9 Tata adapter (9-pin, RS232) based on the HL-340 chipset, for connecting devices with a serial port to a PC via USB. Supports USB1.1/2.0, auto-handshake protocol, 128 byte TX / 512 byte RX buffer. Compatible with Win95/98/98se/ME/2000/XP/Vista/Win7 (32/64 bit). Plug-and-play, hot-swappable, shielded cable with protection against electromagnetic interference.

### ADC current acquisition module, N46IB02, 4-20mA, RS485
- Page: https://sigmanortec.ro/en/adc-current-acquisition-module-n46ib02-4-20ma-rs485
- Details: https://sigmanortec.ro/en/llms/p/1974.md
- Price: 42.28 RON
- Availability: In stock; 1-2 zile
- Reference: 88002 · EAN: 5946373120127

ADC current acquisition module N46IB02 with 2 channels for 4-20mA measurement, RS485 Modbus RTU communication (function codes 03 and 06), allowing up to 247 devices to be connected on the same network. Operating voltage 8-25V, operating current 9-13mA. Measurement accuracy 1%, resolution 0.1mA, measurement range 0-25mA. Calibratable if error exceeds 1%. Suitable for sensor monitoring and industrial automation.

### CAN communication module, SN65HVD230, 3.3V
- Page: https://sigmanortec.ro/en/can-communication-module-sn65hvd230-33v
- Details: https://sigmanortec.ro/en/llms/p/1911.md
- Price: 10.33 RON
- Availability: Out of stock
- Reference: 9768 · EAN: 5940773054389
- Specifications: Supply Voltage: 3.3; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

CAN communication module for 3.3V projects, also compatible with 5V via level converter, ideal in environments with high interference. Offers reliable transmission and reception up to 1 Mb/s, is ISO11898 compliant for easy integration into automotive and industrial CAN networks, allows expansion up to 120 nodes and includes low-power standby mode.
CAN communication module, SN65HVD230, compatible with development boards on 3.3V (or 5V with a logic level converter), designed to be used in environments with high interference, offering robust capabilities of transmitting and receiving signals at various rates transfer.

### CAN interface control module, TJA1050, 5V
- Page: https://sigmanortec.ro/en/can-interface-control-module-tja1050-5v
- Details: https://sigmanortec.ro/en/llms/p/1794.md
- Price: 9.14 RON
- Availability: In stock; 1-2 zile
- Reference: 9683 · EAN: 5946190249957
- Specifications: Input Voltage: 5VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

CAN interface control module based on the TJA1050 chipset, compatible with Arduino and other development boards. Operating voltage 4.5V-5.5V, transmission speed up to 1 Mbit/s, maximum bus length 1000 meters, operating temperature -40°C to +125°C. Pins VCC, TX, RX, GND plus CANH and CANL connections, standard 2.54mm connectors. Dimensions 22 x 11mm.

### Shield CAN BUS V2.0B, UNO compatible, MCP2515, EF02037, 5-12V
- Page: https://sigmanortec.ro/en/shield-can-bus-v20b-uno-compatible-mcp2515-ef02037-5-12v
- Details: https://sigmanortec.ro/en/llms/p/1772.md
- Price: 87.00 RON
- Availability: In stock; 1-2 zile
- Reference: 9663 · EAN: 5942614345656
- Specifications: Supply Voltage: 5; Maximum Input Voltage: 12

CAN BUS Shield V2.0B (EF02037), compatible with Arduino UNO R3, based on the MCP2515 controller and TJA1050 transceiver. Supports the CAN2.0B protocol with a maximum speed of 1 Mbps, SPI interface, DB9 connector. Supply voltage 5-12VDC, logic level 5V. Features status LEDs for RX, TX, INT and power, plus an ON/OFF switch. Dimensions 68 x 54mm.

### USB to RS232 converter, serial, CH340, 9 pins
- Page: https://sigmanortec.ro/en/usb-to-rs232-converter-serial-ch340-9-pins
- Details: https://sigmanortec.ro/en/llms/p/1669.md
- Price: 13.19 RON
- Availability: In stock; 1-2 zile
- Reference: 9559 · EAN: 5947156957800

USB to RS232 (serial) converter with CH340 chipset, RS232 DB9 male port with 9 pins and hand-tightened screw fastening. Powered at 5VDC from USB, supports remote wake-up and power management. Compatible with most Windows versions after installing the CH340 driver. Dimensions: 67 x 37 x 17mm.

### USB to TTL RS485 converter module, serial, FT232RL, dual function
- Page: https://sigmanortec.ro/en/usb-to-ttl-rs485-converter-module-serial-ft232rl-dual-function
- Details: https://sigmanortec.ro/en/llms/p/1592.md
- Price: 15.69 RON
- Availability: In stock; 1-2 zile
- Reference: 9487 · EAN: 5946419470247

USB 2.0 to RS485 and TTL converter, ideal for quickly connecting PLCs, CNCs or cameras to PC. Based on FT232RL and SN75176 bidirectional transceiver, ensures stable multipoint communication up to 32 devices. Automatic direction control and speed 300-9216000 bps, compatible with Windows, Linux and Mac, 3-5V power supply with TVS protection.
This module performs bidirectional conversion between the USB interface and the RS485 serial protocol, intended for industrial automation, remote monitoring, and control applications.

### USB to RS485 converter
- Page: https://sigmanortec.ro/en/usb-to-rs485-converter
- Details: https://sigmanortec.ro/en/llms/p/866.md
- Price: 7.93 RON
- Availability: In stock; 1-2 zile
- Reference: 9060 · EAN: 5946233907141

USB to RS485 converter (reference 9060) for connecting RS485 devices to a USB port, intended for industrial communication and automation. Powered with 5V directly from USB, integrated CH340C chip, maximum transmission distance of 1200m at 9600 b/s and maximum speed of 115 kbit/s. Compatible with Windows XP/Vista/7/8/10, Linux and MacOS.

### DB9 RS232 RS485 terminal
- Page: https://sigmanortec.ro/en/db9-rs232-rs485-terminal
- Details: https://sigmanortec.ro/en/llms/p/766.md
- Price: 9.68 RON
- Availability: In stock; 1-2 zile
- Reference: 33140 · EAN: 5946621501883

The DB9 RS232 RS485 terminal (reference 33140) is a communication adapter for quickly connecting industrial and electronic equipment to serial interfaces, compatible with RS232 and RS485 via a DB9 connector. It ensures stable transmission over longer distances and secure connections through easy-to-wire terminals. It is suited for automation, PLCs, sensors and service devices.

### RS232 to TTL module, converter
- Page: https://sigmanortec.ro/en/rs232-to-ttl-module-converter
- Details: https://sigmanortec.ro/en/llms/p/436.md
- Price: 5.00 RON
- Availability: In stock; 1-2 zile
- Reference: 33346 · EAN: 5948306823501

RS232 to TTL converter module based on the MAX3232. Enables connection between devices with an RS232 serial port and boards with TTL logic level, suitable for Arduino, ESP and industrial modules. Provides bidirectional TX RX communication, operates with external power supply of 3.3-5V and supports compatible levels for 3.3V and 5V. Compact and easy to integrate into projects and test benches.

### MAX3232 mini RS232 to TTL MCU converter module
- Page: https://sigmanortec.ro/en/max3232-mini-rs232-to-ttl-mcu-converter-module
- Details: https://sigmanortec.ro/en/llms/p/366.md
- Price: 2.96 RON
- Availability: In stock; 1-2 zile
- Reference: 22185 · EAN: 5944067364710

RS232 to TTL converter module based on the MAX3232 chip, providing bidirectional communication between a PC/laptop RS232 port and a microcontroller's UART TTL interface. Supply voltage 3.0V-5.5V DC, RS232 voltage up to 15V DC, transfer speed up to 120 kbps, low power consumption. PCB dimensions 50 x 40 mm. Suitable for prototyping, robots and educational applications.

### CAN Module, MCP2515, CAN V2.0B, 5V
- Page: https://sigmanortec.ro/en/can-module-mcp2515-can-v20b-5v
- Details: https://sigmanortec.ro/en/llms/p/350.md
- Price: 12.35 RON
- Availability: In stock; 1-2 zile
- Reference: 22187 · EAN: 5947427266877
- Specifications: Input Voltage: 5 V

CAN module with MCP2515, supports the CAN V2.0B standard with communication speeds up to 1Mb/s. Powered at 5VDC, compact dimensions 44 x 28 mm. Compatible with Arduino and other development boards, suitable for reading a vehicle CAN network, monitoring, diagnostics and application development. Library support and code example available on GitHub.

### TTL/USB Module, BusLinker V2.4, for serial servomotors
- Page: https://sigmanortec.ro/en/ttl-usb-module-buslinker-v24-for-serial-servomotors
- Details: https://sigmanortec.ro/en/llms/p/2412.md
- Price: 51.16 RON
- Availability: In stock; 1-2 zile
- Reference: 88280 · EAN: 5941824151552
- Specifications: Model: BusLinker V2.4; Communication interface: USB / TTL

The essential TTL-USB interface for controlling LewanSoul serial bus servomotors, the only debug board compatible with their protocol, allows quick connection to a PC via microUSB for settings and real-time angle reading, offers direct connection to TX RX for Arduino STM32 ESP32, has 6-8.4V power supply via screw terminal and dedicated servo connectors, compact and reliable with CH340C.
BusLinker V2.4 is a TTL/USB interfacing module dedicated to the control of serial bus type servomotors, specially designed for the LX-16A, LX-15D, LX-824, LX-224, LX-824HV, LX-224HV, LX-1501, LX-225, LX-20S, and LX-246 series.

### Signal converter 2IN, 4OUT, 4-20mA Input, 4-20mA Output, 24VDC
- Page: https://sigmanortec.ro/en/signal-converter-2in-4out-4-20ma-input-4-20ma-output-24vdc
- Details: https://sigmanortec.ro/en/llms/p/1975.md
- Price: 261.90 RON
- Availability: In stock; 1-2 zile
- Reference: 88012 · EAN: 5947531137094
- Specifications: Input Voltage: 24VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Industrial signal converter (ref. 88012) that distributes two analog 4-20mA signals to four isolated 4-20mA outputs (grouped in pairs). Powered by 24VDC, with galvanic isolation between input and output, accuracy 0.1% FS, response time 

### Current sensor, analog acquisition, 2 channels, 0-20mA, 4-20mA, 8-25V, RS485
- Page: https://sigmanortec.ro/en/current-sensor-analog-acquisition-2-channels-0-20ma-4-20ma-8-25v-rs485
- Details: https://sigmanortec.ro/en/llms/p/1915.md
- Price: 49.30 RON
- Availability: Out of stock
- Reference: R-9773 · EAN: 5943470591379

2-channel analog acquisition module for measuring 0-20mA and 4-20mA current signals, ideal for automation and instrumentation. Communicates via RS485 with Modbus RTU support for quick integration into PLC or SCADA. Operates at 8-25V DC, offers good resolution and typical 1% accuracy, in a compact, easy-to-mount format.
Analog current acquisition module 4-20mA and 0-20mA, N46IB02, with RS485 communication and Modbus RTU support, designed for simple and efficient integration in automation, instrumentation and measurement systems. The module is specially optimized for the standard 0-20mA and 4-20mA signals frequently used in automation and instrumentation.

### USB to TTL converter module, CH340, MSOP10, Type-C, 3.3-5V
- Page: https://sigmanortec.ro/en/usb-to-ttl-converter-module-ch340-msop10-type-c-33-5v
- Details: https://sigmanortec.ro/en/llms/p/1839.md
- Price: 7.94 RON
- Availability: In stock; 1-2 zile
- Reference: 9718 · EAN: 5948487054114
- Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

USB Type-C to TTL converter module based on the CH340E chip, in MSOP10 package, with selectable operating voltage of 3.3V/5V. It features LED indicators for Power, TX and RX, is compatible with Arduino Pro Mini, and is used for programming and debugging microcontrollers via serial communication. Compatible with Windows 98 through Win10 (32/64 bit). Dimensions: 18 x 16mm.

### Serial-to-WiFi Converter Module, Sinilink, XY-WFPOW, ESP8285H16
- Page: https://sigmanortec.ro/en/serial-to-wifi-converter-module-sinilink-xy-wfpow-esp8285h16
- Details: https://sigmanortec.ro/en/llms/p/2433.md
- Price: 83.56 RON
- Availability: In stock; 1-2 zile
- Reference: 88254 · EAN: 5945186570242
- Specifications: Model: XY-WFPOW; Main IC: ESP8285H16; Communication interface: WiFi

Compact WiFi module with ESP8285H16 that adds remote control and real-time monitoring to Sinilink programmable power supplies, mounts directly on the board via a dedicated connector, communicates via 3.3V UART with a ModBUS bridge for commands and telemetry, operates at 3.3-5V with internal regulation, and supports advanced integration through alternative firmware such as ESPHome or Tasmota.
The XY-WFPOW module is a compact WiFi control board, built around the ESP8285H16 chip, designed to add wireless connectivity to Sinilink programmable power supplies and turn them into smart devices, remotely controllable over a local network or through the cloud.