Moonwalker
Member level 2
I have a circuit using a Pic12F629 as an rf transmitter on the Trailer socket on a truck (24V). I have 4 of these working perfectly but on one particular truck the Pic is failing after a few hours of use. First time both regulator and Pic failed and the second time only the pic failed. Now client called saying that it failed again. Last time I added a 5V zener before the 78L05 as extra protection in case of voltage going above 30V but something failed again it seems.
I have tested the truck voltage and it does not go above 28V with engine running.
Any idea what might be causing the Pic to fail?
I have tested the truck voltage and it does not go above 28V with engine running.
Any idea what might be causing the Pic to fail?