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Gunnar Skjold
2020-02-07 23:12:27 +01:00
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hardware/README.md
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@@ -12,9 +12,20 @@ Building this project will require some skills in ordering and assembling electr
*The completed board mounted in a [3D printed enclosure](/Enclosure)*
## Assembly of readily available modules
Use a ESP based developmentboard and a M-bus module.
You can also use a ESP based development board and combine this with a M-Bus module. Here are a few boards that have been tested, each one has a dedicated firmware file in the releases section.
[Adafruit Feather M0 WiFi w/ATWINC1500](https://www.adafruit.com/product/3010)
### ESP8266 based boards
[Wemos D1 mini](https://docs.wemos.cc/en/latest/d1/d1_mini.html) - M-Bus connected to GPIO 5
### ESP32 based boards
[Wemos D32](https://docs.wemos.cc/en/latest/d32/d32.html) - M-Bus connected to GPIO 21
[Adafruit HUZZAH32](https://www.adafruit.com/product/3405) - M-Bus connected to RX
Combine one of above board with an M-Bus module. Connect 3.3v and GND together between the boards and connect the TX pin from the M-Bus board to the dedicated M-Bus pin on the ESP board.
[TSS721 M-BUS module board](https://www.aliexpress.com/item/TSS721/32751482255.html)

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