Separating the three voltage channels in itself makes this board superior to the mass produced boards, when you add in the optimized size and increased track width on the power lines, this really should be the version that everyone uses. I've already used up the ones I bought and ordered some more :)
Delivery was as quick as the Royal Mail can be, and when I had a question about the pin sizes for the 5mm pitch holes, Chris responded really quickly and told me what I needed. Couldn't ask for anything more - great boards, intellingently designed.
I have been learning IoT as a hobby for the last 2 years and when I decided to build a weather station I thought how hard can it be right?. :)
After much Arduino and ESP8266 learning I found the requirement for power monitoring is an area that less documented. When I learned of the INA3221 it jumped out as the perfect solution to monitor Battery, Load and Solar all in one I2C chip. But the normal one shares a common ground and is not intended for this.
The unit you see here is however designed differently and with no common ground it is PERFECT for this. I have had instant success with monitoring all 3 power feeds and can now see exactly how well the solar panel is charging the battery and how well the deep sleep on the NodeMCU is working.
I highly recommend this board if you are intending any form of battery charging/usage measurements. The 010 version (this one) does indeed use less power and still reads very accurately.
I am in Australia and shipping to here was not that long. Packaging showed the care and devotion of a serious enthusiast with static bags and padded satchel.
Was impressed enough to come back and write this review as I order a hand full more of these for future projects.
I discovered this by accident whilst researching the devices on Amazon, this version is far superior to those and I have no hesitation in recommending this supplier and his version of this product, great value for money and fast and efficient delivery, thank you
July 21, 2020
Worked like a charm, have my solar, battery and load in HA