I am working on an energy meter that is to show the instantaneous electrical power (kWh ) and natural gas usage (M^3/h) in our house. A bit like <a href=”http://juerd.nl/site.plp/kwh”>http://juerd.nl/site.plp/kwh</a>, but with two recordings, data logging to an SD card and with some buttons to switch the display from the instantaneous recording to usage per-minute, per-hour, etc.
I just managed to get all components hooked up to the Arduino nano. See the photo for an impression.
The project includes
- Arduino Nano
- CRT5000 Infrared Reflectance 2x
- SD card module
- 1602 LCD
I am still waiting for the two pushbuttons. Once those arrive I’ll finalize the electronics and software and transfer it to a perfboard.