Directly connecting to Optical Pulse Counter with RPi?

[CelsoHenriques]

IrishLads, see this thread:

Open collector

You can use the pulse input on the RJ45 connector. Using a device with an SO output has been mentioned a few times - I’m not sure about this forum but certainly in the ‘Archived’ section, and the emonPi input is exactly the same as on the emonTx (so if you find something about the emonTx, it also applies to the emonPi).

It doesn’t have all you need but it may have something usefull that might help you regarding using an rpi with pulse sensor. But as i dont understand programing neither eletronic, i can’t help you more.
Regards,
Celso