Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0

A compact Bluetooth-enabled robotics controller with 8 digital and 4 analog pins, motor drivers, and supports mobile app control for small robot projects.

+VIN-Official table 2 row 1
Servo & Motor power input 6.5~10v
Type · power
+Servo-Official table 2 row 2
Digital port power input 5~12V
Type · power
M1 & M2 TerminalsOfficial table 2 row 3
2-Way Motor Controller: Motor 1 : PIN4 (Direction), PIN5 (PWM Speed) Motor 2 : PIN7 (Direction), PIN6 (PWM Speed)
Type · digital io
I2COfficial table 2 row 4
I2C interface (A4 & A5)
Type · i2c
A 5V GNDOfficial table 2 row 5
Gravity Analog Interface: A0, A1, A2, A3

Start wiring

I2C · SPI · UART

Confirm the data interface matches your host board.

Module pins: +VIN-, +Servo-, LED light, A 5V GND, D VCC GND, I2C. Schematik maps them to your board in the app.

Related groups

4 groups

Connectors

Sort passive connector adapters from Qwiic boards, LCD modules and microSD card adapters before assuming anything with the right plug will substitute safely.

Connectors & cables · Connectors · 28 parts

Displays

Character LCDs, SPI TFTs, e-paper modules and larger capacitive-touch TFT panels solve different display jobs. Treat display class, interface, controller, resolution, touch, refresh behaviour, storage, voltage and mounting as separate swap checks.

Displays · TFT & LCD displays · 33 parts

Air quality

Choose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.

Sensors · Gas & air-quality sensors · 29 parts

MCUs and boards

ESP32, Arduino Uno, Raspberry Pi Pico, and compatible add-on boards for running builds.

Boards · Microcontroller boards · 24 parts

Pin	Position	Type	Function
+VIN-	Official table 2 row 1	power	Servo & Motor power input 6.5~10v
+Servo-	Official table 2 row 2	power	Digital port power input 5~12V
M1 & M2 Terminals	Official table 2 row 3	digital io	2-Way Motor Controller: Motor 1 : PIN4 (Direction), PIN5 (PWM Speed) Motor 2 : PIN7 (Direction), PIN6 (PWM Speed)
I2C	Official table 2 row 4	i2c	I2C interface (A4 & A5)
A 5V GND	Official table 2 row 5	ground	Gravity Analog Interface: A0, A1, A2, A3
D VCC GND	Official table 2 row 6	ground	Gravity Digital Interface: D2, D3, D8, D9, D10, D11, D12, D13；
LED light	Official table 2 row 7	power	PWR-power indicator TX/RX-Data transmissing/receiving indicator L-D13 led * LINK-Bluetooth link indicator PAIR-Bluetooth pair indicator
RESET	Official table 2 row 8	digital io	ATmega328P Reset button
BOOT	Official table 2 row 9	pin	Used for update BLE Firmware

Pinout

Start wiring

Connectors

Displays

Air quality

MCUs and boards