So i have managed to short out 3 PIs, one was my fault for sure (i know they all are) but i am a little unsure what is going on. I may just be lacking the understanding with regards to what i am doing.
Here is what i have setup:
PI4B with a PIM213 automation hat.
I have a positive ADC wire that is used to measure voltage of a battery going into adc1. The associated ground/negative wire for that battery goes to 1 of the 3 ground plugs.
I have a second postive ADC wire that is used to measure voltage of a second battery going to ADC2. The associated ground negative wire is going to the 2nd ground plug.
I then have 2 adafruit surge strips. I have the positive relay wire of the first one in the NO of relay 1, i have the associated ground wire for that relay going to a ground pin on the pi.
I have the second surge strip positive relay wire going into NO of relay 2. The ground for the second surge strip relay goes to the ground of the first since there are only 3 grounds on the hat, i didnt think daisy chaining them would be an issue. But maybe i am wrong.
I have one of the 5v leads of the hat going to the common of the first relay.
I have the second 5v lead of the hat going to the common of the second relay.
If i take one of the pis 5v leads and connect it to ad1 it correctly turns on relay 1 when my code is running.
If i remove that and take the 5v lead and connect it to ad2 the relay trips briefly but it goes back quickly as if there is a short and then bamb the pi is dead. Am i wired wrong or is there maybe somethign wrong with the hat?
Here is what i have setup:
PI4B with a PIM213 automation hat.
I have a positive ADC wire that is used to measure voltage of a battery going into adc1. The associated ground/negative wire for that battery goes to 1 of the 3 ground plugs.
I have a second postive ADC wire that is used to measure voltage of a second battery going to ADC2. The associated ground negative wire is going to the 2nd ground plug.
I then have 2 adafruit surge strips. I have the positive relay wire of the first one in the NO of relay 1, i have the associated ground wire for that relay going to a ground pin on the pi.
I have the second surge strip positive relay wire going into NO of relay 2. The ground for the second surge strip relay goes to the ground of the first since there are only 3 grounds on the hat, i didnt think daisy chaining them would be an issue. But maybe i am wrong.
I have one of the 5v leads of the hat going to the common of the first relay.
I have the second 5v lead of the hat going to the common of the second relay.
If i take one of the pis 5v leads and connect it to ad1 it correctly turns on relay 1 when my code is running.
If i remove that and take the 5v lead and connect it to ad2 the relay trips briefly but it goes back quickly as if there is a short and then bamb the pi is dead. Am i wired wrong or is there maybe somethign wrong with the hat?
Statistics: Posted by cryptz — Mon Mar 11, 2024 6:59 pm
