All the same features as the orgnal, but less the half the size

NO Dc/Dc convert, power board via 5 volts

FTDI cable compatible pinout

Standard 6-pin ISP header

Two LED indicators

ATmega328P with Arduino bootloader

MAX7456 monochrome on-screen display

Modifications for direct connection of two batteries (up to 4S)

Pad for an Analog or Digital PWM RSSI signal

Pad for the connection of a Current Sensor

ATmega328P with Arduino bootloader

Standalone, or with APM/Flip/Flip32+ flight controllers

These modifications allow direct connection of two batteries (up to 4S)

Size: 15 x 15mm