superfrink / power-meter Goto Github PK

Hi, I'm hoping you can clarify your wiring schematic. I'm using an EKM water meter with pulse output. I have 3 wires, and according to this post (https://forum.ekmmetering.com/viewtopic.php?f=9&t=6115), there is a Common wire, pulse-output1 wire, and pulse-output2 wire. I believe, I can safely ignore the pulse-output2 wire, since I only have one device hooked up for reading.

In your wiring diagram, would I hook the Raspberry pi 3.3V output up to the common, then hook the pulse-output1 wire to RPI's pin 13/GPIO 27 with a 1k ohm resistor, and RPI's ground with 10k ohm pulldown?

Also, I'm confused about the order of the 1k, and 10k resistors. The schematic makes it look like they are not inline with each other, but the description says to put the 10k pulldown after the 1k resistor. Can you clarify?

My apologies if these questions are basic, I've never worked anything like this before. Thanks.