Hi there! Reading the Watermark sensor is no easy task indeed. Took us a while to get accurate and reliable data out of these sensors.
First of all, take a look at the official documentation provided by Irrometer: https://www.irrometer.com/200ss.html
Especially the pseudo-AC excitation is very important and make sure you calibrate the readings using the soil temperature.
There's quite some off-the-shelf hardware on the market already. Look for a device that has a low power consumption so you can measure throughout the year, for example:
https://www.crodeon.com/blogs/news/connecting-a-watermark-sensor-to-the-cloud
Let me know if you have any more questions!
@alphaHotel said in Most reliable "best" radio:
It's looking good! I'm curious, how far apart are the battery clips now (center-center)?
Most likely it will be either 16.75mm or 17.75mm. 17.75mm is plenty wide. I have some test boards coming at 16.75mm to see if losing 1mm still guarantees adequate separation.
As for which USB connector, it depends on context. If size is not an issue, then lately I'm liking USB-B more than USB-mini. It's the same USB connector commonly found on the classic Arduino Uno. Super robust. I recently sourced 10 of them from mouser: https://www.mouser.com/ProductDetail/490-UJ2-BH-2-TH at close to 50 cents each.
Some updates in almost one year.
I moved all the gateways and controller part in a most suitable location
I've created a dual current sensor for the fuse box and the inverter. Each Current sensors can withstand 90A max, so I used both channels in parallel. The sensors are defined for both Channel 1, 2 and Sum(Ch1+Ch2) to handle this case easily
Recently I made an updated version of my Photovoltaic monitor since the 20A that the old one could withstand are not enough now, so the new version is capable of 50A max. Still waiting the Hall sensors though...
Finally, I cleaned up a bit the deployment under the bench
but I am not done yet
@NeverDie avoid tuya devices: they are intendly made to work only with the tuya app.
people try to work this around , for instance in ZHA quirks, but this is a nightmare of reverse engineering
