Pi camera on a raspberry pi zero
Hank and Gary were having trouble with a pi camera. When I ran raspistill, it would give an error saying that camera not detected. After some digging, I found a great command to troubleshoot camera
The output would say: Supported=1 Detected=0
Supported means whether Camera Support is enabled in Raspberry Pi Configuration(raspi-config->Interfaces>Camera). Detected=0 means undetected.
It turns out that the camera connector is rather finnicky. After removing it from the case, we finally got Supported=1 Detected=1 and good to go from there.
Install raspberry pi on raspberry pi zero
Created an install script here. Needs buster.
Determine pi temperature
Normally, the command is
If you use a custom OS besides raspbian, that command may not be available. So alternative is to use the following command
Interesting problem arose where the following snippet was being executed in crontab
20 14 * * * echo moo > moo-`date +%d-%m-%y`.log
The command is perfectly legal, and if you run it in a shell, it works as expected.
The issue is, in the cron, the percentage sign needs to be escaped. So the fix is:
20 14 * * * echo moo > moo-`date +\%d-\%m-\%y`.log