“Long time ago I’ve build a smart charger for my scooter HP_Baxxter. Now I had time to also build a handheld for it.
Right now only the powerconsumption is shown with the device. I hope that in the future I’m also able to add the finedust and temperature of annother sensor.
For the Hardware I’ve used a ESP8266 together with an display. To power the device a Li-ion 18650 cell is used. To secure the battery against over and undervoltage batterycharger module is used.
I like the industrial look of open wired and stuff it is ment to be so ;-)”