5V power supply to PyCom I2C shield

Hardware
#1

Hi

Have a 4-Channel I2C 4-20mA Current Receiver with I2C Interface (PR33-15) connected to a I2C Shield for WiPy2 & LoPy With USB Programming Port (PR34-7) with a PyCom chip in it. Normally the PyCom is powered with power from usb port on shield.

Is it possible to power shield with 5V from the 4-Channel board?

#2

It can be done but we dont recommend it.

The on board power supply can deliver max 5V@1Amp. If pycom consumes more than that then it will drop the voltage and that can skew the analog readings