Hi All

As many on this forum and in general at IoT, I'm looking for a way to extend the battery life, or... to not use a battery at all.

I do have a technical background, but not in electronics. I don't have a lot of requirements about when or if the Espruino should work, because I was thinking about this:

• Trigger the Espruino wifi once in 2 hours.
  
• Use ambient light harvesting, a lot about it is written in here: https://www.digikey.com/en/articles/tech­zone/2017/jun/a-simple-approach-for-harv­esting-energy-from-indoor-lighting in combination with a supercapacitor
  
• If there is no energy left, that's a pitty, but not really a problem for me. I don't know if it's a problem for the Espruino? Or can it be a problem if the Espruino wil crash / or get an power outage during code execution?
  
• If there is light enough / energy enough in the capacitor, then trigger again once in two hours.
  
  
  

Regards, Peter