FuelDisp
display fuel left for me at work
works with stm32 chip
Parts list: Arduino yun X9C102 connection wires plastic case Fule meter battery DC-DC power board optional: GPS module
Logic: when fuel meter powered with 9~12v dc it works and checks resistor value,and display how much fuel remains and we can change resistor vaule by digital signal so we can change fule display value with digital signals
Coding: working time starts by 09:30 ends at 18:00 we can calculate how many minutes we need to work in total and devide them into cycles we set each cycle a value mapped to the resistor we got a fully functional fuel clock,that reminds you need to get home early and refuel yourself.
special logic before work time fuel need to be at zero when recovery from black out fuel need to re-calc to current val X9C102 need to clear current storage everytime cycle is broke