brave quiver
https://github.com/ajvdw/waterlezer
The main difference with other pulse counters is that the hardware uses two i/o pins to read analogue reflection values. Resulting in more accurate readouts.
https://github.com/ajvdw/waterlezer/blob/main/media/waterlezer.jpg
small vapor
Nice!
Where do you set the number of impulses corresponding to the water quantity?
Eg. 1 reflection spin = 10l or 1l
brave quiver
Basically the translation from pulses and pulses per minute to liters and liters per minute is done in the yaml config for esphome using filters (e.g. filters: - multiply: 0.001). The component (pulse2_meter) only works with pulses.
small vapor
So by default without filter 1 pulse = how many liters?
1000?
My meter has has a magnet spinning inside, and I bought the optional reed relay cap available for it. According to the manual, it gives an impulse every 10 liters.
Could I use your component with it?
brave quiver
Yes, but there is no benefit using pulse2_meter instead of pulse_meter in your case. I you meter gives an impulse every 10 liters set the filter to 0.01 to count the cubic meters. By default 1 pulse = 1 liter in my case.
cobalt dust
Cool, what kind of water meter do you have?
brave quiver
Cool, what kind of water meter do you have?
cobalt dust
Ok, thanks. I tried to Google a little bit but it was hard to find any info about the pulse it emits. What kind of pulse is it? Does the water meter has some kind of electricity too then to be able to emit a pulse? I have a dumb meter myself without any kind of pulse and am looking into alternatives
brave quiver
Ok, thanks. I tried to Google a little bit but it was hard to find any info abou...
It's just a rotating wheel with a part covered with a reflecting substance. The wheel rotates while water flows. The sensor that I use measures reflection of the IR led.
cobalt dust
Oh, nice.. I wonder if mine is similar 🤔
cobalt dust
@brave quiver what IR led and sensor have you used?
brave quiver
You can find the schematic diagram on github with all details
@cobalt dust it's an rpr220
cobalt dust
the schematic says WEMOS1, is that a Wemos D1? which revision in that case? I have noticed they differ slightly in size 😒
bold smelt
hey thanks for sharing. some feedback for you: although i saw the PCB, it isn't clear what sensor you're using or how this all works. perhaps the readme could backup and explain the motivations and sensors before jumping into the setup. would definitely be helpful for others.
viscid jetty
https://www.aliexpress.com/item/32661635775.html does it use this thing?
brave quiver
https://www.aliexpress.com/item/32661635775.html does it use this thing?
No, that's a hall effect sensor. It uses an IR led and receiver (RPR220) https://www.aliexpress.com/item/1005002408522590.html
brave quiver
hey thanks for sharing. some feedback for you: although i saw the PCB, it isn't ...
I changed the readme.md in the github waterlezer repo by adding a "How does it work paragraph"
brave quiver
the schematic says WEMOS1, is that a Wemos D1? which revision in that case? I ha...
Hi, I use clones. But in my experience there is no size difference only skewed header pins. Typically I insert the D1 in a PCB before soldering the header pin connectors to the D1. These header pins match the 0.1 inch grid....
cobalt dust
apart from the PCB itself and an ESP8266, I think at least these are needed:
https://www.aliexpress.com/item/4000166999502.html
https://www.aliexpress.com/item/32904057396.html
https://www.aliexpress.com/item/32844761642.html (10K)
and if you want a connector I believe something like this might work: https://www.aliexpress.com/item/4000126563819.html
viscid jetty
No, that's a hall effect sensor. It uses an IR led and receiver (RPR220) https:/...
curious, why did you go with IR diode and not magnetic sensor?
brave quiver
I did tried that as well (hall sensor as well as an inductive sensor).
brave quiver
curious, why did you go with IR diode and not magnetic sensor?
I chose this option, because it took the least space (the lit of the meter can be closed with the sensor in place).
A picture of the actual device.
cobalt dust
Regarding the PCB, I presume you cut lose the white part of it? It's used for the actual sensor, isn't it? What kind of tool did you use for that?
