I had the same problem, but this helped me:Julz wrote:Hi all,
I'm having trouble getting the bash script to feed updates via JSON to my Raspberry Pi. I can trigger the bash script manually and it seems to update the temperature sensor and PM2.5 sensor values the first time but then the temperature sensor updates to 0.0C and the PM2.5 sensor doesn't update again. I'm pretty sure I've set up the script to trigger at boot via a call to my 'startup.sh' script in my /etc/rc.local but after bootup is complete, doing a 'screen -list' doesn't show any sessions running unlike when I manually execute my startup.sh. Any suggestions?
http://raspberrypituts.com/raspberry-pi ... planation/