Hello, all!
Said this on another thread, but thanks in advance for everything on this thread and others related to this project. I'm fumbling my way through it, and I've gotten farther than I would have expected just by looking at all the previous work. I've got two issues now that I need some input on - sorry for the length.
#1 - I've built the most recent version of the shield. Everything seems neat and clean - I'm not great at soldering, but took my time and think it's good. When I plug the arduino directly into the RPI, everything works (almost - see issue 2). The arduino's light comes on, data moves, and the script starts running, per the web interface. However, when the shield is plugged in, everything stops (whether it's plugged in before the RPI starts up or not). The power LED on the arduino has the barest of flickers, but otherwise, nothing seems to be happening. The script stops running or never starts, and the RPI completely freezes (mouse and keyboard stop working). Unplug the shield, everything goes back to normal. This is before I even start adding temp sensors or connecting the relay. I'm running revC with the most recent firmware (reflashed to see if that helped...it didn't).
I'm assuming something I did while soldering is causing a power issue or a short - I was pretty careful with my parts placements, so I don't think anything's out of place. I also can't find anything that looks like a short in my soldering. I'm attaching pictures of the shield below. Would really appreciate if you can point me in the right direction to troubleshoot. I've got parts for another shield, so can switch things out if I need - I'm just not knowledgable enough to know where to start looking.
#2 - Since I've been struggling with the shield, I decided to wire up a non-shield version. Everything's working fine, except that the temp sensor doesn't seem to be working. I only wired up one, planning to test that my relays work, I get power flowing correctly, etc. The device configuration interface picks up the temp sensor, but I never get any actual temp readings. No errors or anything, and the device configuration looks like it's working....just no temps. That's been the case with two separate temp probes. I had two temp probes working a while back before I started down the shield path, but now I can't get readings from them. As with issue #1, if you can recommend the next troubleshooting steps, that will get me started - I'm just at a loss as to where to start other than deconstructing it all and starting again (which I've done twice already).
Thanks in advance for any help - I'm doing my best not to pepper the forum (and
@LBussy,
@day_trippr and the other experts) with too many questions.
Tom