Energy Monitoring and other fun with Whatnick
ATM90E26 breakout for AC energy monitoring. It allows development of code and applications conveniently.
I wanted to test various energy monitor ASIC's. I have already made an ADE7763 Breakout, I wanted to try the ATM90E26 for comparison and ease of use (SPI/UART alternatives). However it is not cheap since ATMEL's version of the EVM is too expensive, aimed at the enterprise rather than electronics hobbyists.
So I took the low voltage parts of the reference design and made a breadboard friendly breakout.
Accurate and well documented Energy Monitor chip in a breadboard friendly package which can be combined with any popular microcontroller platform with a SPI bus.
I have tested the SPI code with Teensy, ESP8266, Arduino M0 and Particle, but the Arduino code should be portable to any compatible platform that supports SPI Mode 3. This code was ported from a RaspberryPi version by Ryzee, the Pi is also supported.
UART code has also been tested with the ESP8266 and this is the recommended platform for building Wifi Energy Monitors with the ATM90E26. The ESP8266 does not support SPI Mode 3, but it is misrepresented as SPI Mode 2.
Build a low voltage test circuit using signals smaller than 600mV RMS. Typically with a voltage divider hooked up to a 12V transformer. Do not connect high voltage AC to a breadboard.
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Australia Post: Airmail
This is an untracked airmail letter option only use for low value items which you are in no hurry to receive. May take upto 8weeks, with possibly additional delays due to customs.
Australia Post: Airmail Parcel
Australia Post: Standard Air Parcel (Tracked)
This is a tracked option for shipping. Not any faster than letter, more suited for larger orders upto 500g.
Australia Post: Express Post
Express shipping via EMS with tracking. Please consult me when choosing this option.
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Whatnick INC is an Energy analytics company for all electricity consumers across the world to help reduce their power costs at an affordable price point using user friendly products & analysis. I also build bespoke analog-digital hybrid systems to analyse other real world signals particularly music.