OpenWrt and how to create programs to run on it. I'm trying to help a not for profit save some money managing weather stations
If possible, I'd recommend getting an OpenWRT wireless router where the GPIO (general purpose input/output) and UART pins are broken out. You can use that to control a relay and turn devices on/off from just the shell (eg: deploy the routers in pairs, and if one of them goes down, you can power cycle it using the other device). The UART port lets you access serial data devices (possibly through a 3.3V to 12V level co…
Thanks, unfortunately I have to work with a couple of old routers