This is where we will track our progress in completing the design for the EnerJar.
- Auto-ranging: waiting on digital potentiometer from Microchip
- Create more detailed parts list with proven/suggested suppliers.
- Test a cheaper/smaller microcontroller 16f887 perhaps: waiting on samples from Microchip
- Get a PCB layout designed and ordered
- Measure the EnerJar's readings against a reliable reference meter to prove our design
- Calculate long term totals
- Calculate more geeky figures like frequency, voltage, current and power factor
- Check allowable ranges of values for components (caps, pot, resistors)
- Create a debug mode for debugging the circuit if something isn't working
- See if we can use Vref+ and Vref- only for current reading, and use full 0-5v for voltage
fixes in version 0.8.1
- Calibration system- 2 buttons: one to set zero-level and one to set a known power (like a lightbulb)
- Are incandescent lightbulbs even consistent enough for this to work? Any other ideas for a device that consistently uses the same amount of power?
- Make sure that the code would not need to be changed for a 240-volt version
note: the calibration range is large, so 240-volt should require no change in software