i do well to built the plant monitoring project.
when i make do it practically with bolt it work properly but when i make it with other devices like arduino how we configure it .One line code is sufficient with this project.
https://www.arduino.cc/
above link,you can available software to program arduino. its a simple c program to control various device for your project and also so many example programes are available in this you just need to rewrite the conditions what you need. and it connect to bolt through uart this conditions are transferred to cloud and control easily.