Esp32-cam-mb connection with multimeter

Other Hardware General Electronics
1

I have to check the current (Ampere) of my esp32 cam, for now after various tests I have arrived at these procedures:

  • I separated the 2 modules (MB and camera)

  • I connected microusb to the MB module

  • i connected pins 5V and GND (from MB Module to Camera module)

(with MB I mean the module with the micro USB without camera)

AND ALL WORKS (NOT MULTIMETER :frowning: )
BUT

I tried to put the multimeter between the others GND and 3V or GND and 5V but without success, I don't know which pin to put it among for measuring Ampere.

thanks for your future reply :slight_smile:

2

Try a Google search for the 'ESP32CAM Schematic'.

The schematic will make clear which pin is supplying input power to the regulator (AMS1117/3.3V) on the ESP32CAM board.

To measure current the multimeter needs to be on a suitable current range and in series with the pin supplying input power.

If you put the multimeter on a current range and put it across GND and 5V or GND and 3V3, you could damage the ESP32CAM, the power supply, and\or blow the fuse in your multimeter.

3

I noticed, it went out with a spark. :frowning:

now i solved and thank you