- This will allow you to reliably run an Arduino Mega at **3.3V**! Use Frequency: 8MHz, Upload Speed: 15200 to achieve this. - The default for the Arduino Mega is, Frequency: 16MHz, Upload Speed: ...

Keyestudio Mega 2560 plus Board, whose processor core is ATMEGA2560-16AU, is fully compatible with Arduino Mega 2560 REV3. USB to TTL chip adopts more economic and stable CP2012. This plus board ...