Subj : Re: Common Ground Block
To   : Mortifis
From : echicken
Date : Sun Mar 08 2020 23:41:07

  Re: Re: Common Ground Block
  By: Mortifis to echicken on Sun Mar 08 2020 12:18:59

 Mo> this is it working with a different breadboard, I though maybe the grounds were
 Mo> drawing too much power but wouldn't the power draw be the same?

If you're tying all of those ground points (on the red breadboard) to ground (eg. GND on the Arduino) through one jumper wire (that red one) there's a chance that jumper is undersized for the job. You could try running two jumpers from the red breadboard to your ground point (if possible, eg. two GND pins on the Arduino).

You could check for continuity between each of the pins/wires connected to the red breadboard. Your multimeter has a buzzer, so that'd make quick work of it. Per this pic:

http://alleycat.synchro.net:81/images/ground_block.jpg

Hold one lead to the end of the red jumper on the left, then tap the other lead on each of the pins on the connector up top. If you don't get a tone on green, yellow, red, and all three of the black wires, then you've got a break in your circuit. Could be the breadboard, a connector, a wire, or various combinations.

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echicken
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