He range (min and max) of admissible voltage on the Power IN terminal of the ref RB-Dfr-137

Hello, could you give me the range (min and max) of admissible voltage on the Power IN terminal of the ref RB-Dfr-137

Hi @nicolascollinjnovtech

It is just like the Arduino Mega:
Recommended is 7-12V.
Limit is 6-20V.