How to program the Robotdyn Mega 2560 PRO MINI?
Connect the Arduino to the FTDI in the following way:


FTDI - Arduino
VCC - VCC
GND - GND
RX - TXD
TX - RXD
DTR - 100nf capacitor - RST
CTS is not connected


Use the following settings in the Arduino IDE


Board: Arduino/Genuino Mega or Mega 2560
Processor: ATMega2560 (Mega 2560)




The image shows the Arduino with colored connectors and with 4 extra rows of connectors. These are not part of the original Arduino. I added them to make it easy to connect lots of I2C devices for testing.