I have an analog electricity meter (AEM) and I would like to track my usage of electricity. I've attempted to use the EE-SY310 photo sensor, but that's not sensitive enough it seems. I suspect the black stripe on the dial is too thin to be picked up. The other concern on using any photo sensor is its dependance on light (obviously) hence no reading would be picked up during the night.
Other: I've also found that AEMs work by using magnetic fields to move the dial. The magnetic field detector I used did not show much fluctuation when turning appliances on/off. The dial was pegged at the max. Therefore, I'm not so confident that a sensor to measure magnetic fields would work here, but I'm open to suggestions.
So, would anyone know what sensor would be good to detect the black stripe on AEMs? Preferably to also work without light.
I know there are off-the-shelve products that do this already, but where's the fun in that?