![](https://d33wubrfki0l68.cloudfront.net/e47dc529d451b921a137ab4b2ce0c35ae547c89b/5c3b9/post/smartmeter-pulse-counter-2/images/schematic1.png)
Smartmeter pulse counter (2)
This week I have had some spare time - well, I should say I've borrowed some time from my sleep - to work on the smart-meter pulse counter setup. In my last post about this I analized the signal from my photocell sensor. My conclusion was that the signal was clean and neat, even before throwing in a schmitt trigger to make it more “digital”. I have found out that it is also very dependent on the environmental light so I good isolation is a must for the sensor....