Vintage meter found...

A project log for Analog solar power meter

Using the Rpi, i've built a system that reads the data from my SMA inverter, and shows live output to an analog meter from the 30's.

Sander LosSander Los 02/13/2015 at 20:210 Comments

I've just found a cool bakelite vintage meter (Crompton Parkinson 15mA) on a trading website. Bought it :)

The Software is already running, the power output is now show on a (way too modern) analogue meter that I owned already. In the daytime, I'm showing the actual output power, in the night i'm switching to the total kwh for that day...