Romeo ATmega328P BLE Motor Control Board

1. Example Code for Arduino-Motor Control via Serial

This article offers an in-depth guide on controlling motors with Arduino via serial commands, featuring sample code, hardware setup, and instructions for controlling motor speed and direction efficiently.

Reference

This article provides detailed insights into BLE firmware versions, motor driver upgrades, wireless programming via BLE, and step-by-step tutorials for configuring and updating Romeo boards.

Parameter	Details
BLE chip	TI CC2540
Transmission distance	30m (open area)
Microprocessor	ATmega328P
Board selection	Arduino UNO
Flash	32 KB (ATmega328P) of which 0.5 KB used by bootloader
SRAM	2 KB (ATmega328P)
EEPROM	1 KB (ATmega328P)
Clock Frequency	16 MHz
Digital I/O Pins	8
PWM Digital I/O Pins	4 (D3, D9, D10, D11)
Analog Input Pins	4
Output current	1.2A single-channel continuous drive current
Start / Peak Current	2A (continuous pulse) / 3.2A (single pulse)
Motor Drive Pins	D4, D5, D6, D7
Interface	microUSB interface
Motor Driver	2x2A H-bridge motor driver
Size	45x38.5mm

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

Romeo ATmega328P BLE Motor Control Board

Specification

Pinout