# Development board with round display, Raspberry RP2040, 1.28 inch LCD, accelerometer, gyroscope, No Touch

- Page: https://sigmanortec.ro/en/development-board-with-round-display-raspberry-rp2040-128-inch-lcd-accelerometer-gyroscope-no-touch
- Price: 201.11 RON
- Availability: In stock; 1-2 zile
- Reference: 9652 · EAN: 5943802458233
- Category: Mechatronics and IoT > Development Board > Raspberry Pi and RP2040 Boards
- Package (shipping data): 0.016 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:50 (Europe/Bucharest)

## Description

Compact board for portable projects and graphical interfaces, with dual-core RP2040 and easy programming via USB Type-C. The 1.28-inch round LCD screen clearly displays text and graphics, and the IMU with accelerometer and 6-axis gyroscope allows motion detection for smart watches, trackers or interactive prototypes. Also includes a charging circuit for a Li-Ion battery.
The Raspberry Pi PICO RP2040 development board with 1.28 inch circular LCD screen is a compact and powerful device, designed to support creative projects and the development of innovative electronic applications. With an integrated Raspberry Pi RP2040 chip, this board offers an easy and versatile programming experience, being suitable for users of all experience levels.
The board offers a charging circuit for the lithium ion battery, which is essential in projects such as smart watches.
A 6-axis sensor is also integrated (3-axis accelerometer and 3-axis gyroscope).
For programming, the USB interface with Type-C connector is used, which also offers Host support.
The main feature of this development board is the integrated 1.28-inch circular screen, which provides a practical visual interface for displaying information and interacting with users. This high-quality screen allows the clear rendering of graphics, texts and images, opening up a multitude of possibilities for the design of wearable devices, smart watches, monitoring sensors and much more.
It comes equipped with the RP2040 chip, with two ARM Cortex-M0+ cores, offering solid and efficient performance for managing complex tasks. The board includes 264KB of SRAM memory and 2MB of flash memory to store the code and data needed for projects.
Connection interfaces are abundant on this development module and include digital and analog GPIO pins, PWM pins, and I2C, UART, and SPI interfaces, allowing easy connection of sensors and other peripheral components.
The board has support for several programming languages, including MicroPython and CircuitPython, which facilitates the process of programming and developing applications for users with programming experience or for those who want to learn to program.
Accelerated FP (Floating-Point) type libraries have been integrated in this product to perform mathematical calculations in an efficient and fast way, using the hardware and software optimizations available on the chip. An integrated temperature sensor and a precision timer clock were also integrated.
It can be programmed in drag and drop mode, using USB mass storage.
The board supports Low-Power sleep modes and Dormant mode (inactive device until receiving an input).
If you use multiplexers, pay attention to the fact that of the 30 GPIO pins, a good part were connected in the board circuit.
The I/O pins are on 3.3V. Do not use more than 3.3V, otherwise the board will burn . For use with 5V sensors and modules, use a logic level translator.
Specifications:
Supply voltage: 5VDC, via USB
Logic voltage: 3.3V
Chip: Raspberry Pi RP2040 with two ARM Cortex-M0+ cores
Processor frequency: 133MHz
LCD screen: 1.28 inch, circular, color
Screen resolution: 240x240 pixels
Screen colors: 65K RGB
SRAM memory: 264KB
Flash memory: 2MB
Interfaces: digital GPIO, analog GPIO, PWM, I2C, UART, SPI
Compatibility with programming languages: MicroPython, CircuitPython
USB interface for programming and communication with the computer: Type-C
Accelerometer: 3 axes
Gyroscope: 3 axis
Temperature sensor: Yes
Clock: Integrated, precision
Integrated FP libraries: Yes
Pins: 2 × SPI, 2 × I2C, 2 × UART, 4 × 12-bit ADC, 16 × controllable PWM channels
Programmable state machines I/O (PIO): 8
Battery charging circuit: Yes, for a Lithium cell (3.7V)
Pinouts:
Plate details:
1. USB Type-C connector
USB 1.1 with device and host support
2. ETA6096
High efficiency lithium battery charge manager
3. Battery Header
MX1.25 connector, for 3.7V lithium battery, allows charging the battery and powering the board simultaneously
4. QMI8658C
Inertial Measurement Unit (IMU), which includes a 3-axis gyroscope and a 3-axis accelerometer
1. 1.27mm pitch pins
Adaptation of all GPIO pins and debugging pins (Debug)
2. W25Q16JVUXIQ
2MB NOR-Flash
3. RP2040
Dual-core processor, with an operating frequency of up to 133MHz
4. RESET button
5. BOOT button
Press it when resetting to enter download mode
Documentation: https://www.waveshare.com/wiki/RP2040-LCD-1.28?spm=a2g0o.detail.1000023.17.6fb7JGzfJGzfJW&file=RP2040-LCD-1.28