The Romeo BLE mini is a simplified version of the Romeo board. It inherits all the functions of the Romeo BLE. Moreover, it's smaller.
It has 8 digital pins, 4 analogue pins and integrates Bluetooth 4.0 wireless communication function. It can easily drive a mobile platform using two 1.2A H-bridged motor drivers to meet the needs of small scale robots. The Romeo BLE mini will prove to be a very good assistant to Makers. You can also check out the Bluetooth micro-controller selection guide to get more information.
Version update: V2.0 has an upgraded motor driver IC. It replaces the HR8833 with a TB6612 motor driver chip. The TB6612 has the same control logic as the L298 motor driver and the code is compatible with the Romeo robot control board. It also has 2 interrupt pins now, so you can connect encoders to make a PID motor control.
Supports Gravity 3-pin interface, colour-coded, compatible with servos and Gravity sensors & modules
Supports external power supply automatic switch, can simultaneously use USB and external power supply
Supports wireless download program / wireless communication function
Supports mobile phone APP control
Two-way H-bridged Motor Driver
Support servo external power input
Supports AT commands to configure BLE
Supports serial transmission
Supports master and slave switch
BLE chip: TI CC2540
Transmission distance: 30m (open area)
Board selection: Arduino UNO
Flash: 32 KB (ATmega328P) of which 0.5KB used by boot-loader
SRAM2: KB (ATmega328P)
EEPROM: 1KB (ATmega328P)
Clock frequency: 16MHz
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