
gianz
Hi everyone,
I have followed every day postings in this forum since November when I bought the EZ-B, but this is my first posting.
I have a problem with the controller, it started with firmware update V16 but maybe it was just coincidence. The blue status led is very dim almost off and when I measure the voltage it was only 0.8v. Voltage regulators are giving 5V. Bluetooth led is blinking and I can do the pairing with PC, but I can not establish a connection with EZ-Builder. Looks like the PIC controller doesn't start the program. Any suggestion what else I have to check for troubleshooting the problem.
Thanks,
Always helpful, like everybody here in the forum
DJ, any chance that on far off rev. To the board, you can introduce circuit protection for the IC?
Does this sound like I need to order in a new PIC or do you have another suggestion? As stated, it does work more often then not (It is currently working right now), but is concerning when it glitches.
Electrical components either work, or don't work - there's no in between of partial working. Which means your components are okay.
The dim blue LED (not pulsing) must mean something though? Low voltage, incomplete firmware "boot", need more coffee
My board is always mounted on standoffs, even when bench testing. I have done one soldering mod (for jumpered EXT power) and usually have my ADC power monitoring circuit attached. But I had these issues even before any of that was done. It comes and goes and cannot be replicated on command, thus hard to track, but I will continue to diagnosis it when it happens.
Nice to know that the PIC is easy to replace