OutoftheBOTS wrote: ↑Fri Aug 31, 2018 9:25 amYou guys might be interested in something like these https://www.aliexpress.com/item/WIFI-Re ... autifyAB=0
or something like this https://www.aliexpress.com/item/DC-7-30 ... autifyAB=0
They are a relay with a ESP8266 connected to them. The ESP8266 is known as the IOT chip. People use then as a node for the IOT projects usually driven with MQTT as a client and something liek a RPi as the MQTT broker. They can be programmed with Micro-Python or LUA-MCU or Ardunio or C/C++.
If you lost power for 2 weeks and were relying on a puter system to keep potted plants watered i dont think it would really matter what the puters did when power returned..bill z wrote: ↑Sun Sep 02, 2018 1:14 pmThanks for this input!
I like the WIFI Relay Module ESP8266 IOT APP Controller 2-Channel For Smart Home 12V but not sure if it will work with my knowledge of RPIs or Arduinos. Where these are going, there are no cell phone towers around. I did send a message to the seller. Maybe they can offer help.
Back to one of my original questions: because this irrigation system will be many miles away, I would want it to always restart and run without any intervention should the power go out. It would be a problem each RPIs was sitting waiting for a prompt when the power cam back 2 weeks back. How do I set up the OS to start the program on power up with no GUI?
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