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readme.md

emonTH V2.0

Low power wireless temperature and humidity node

V2.0 hardware revision adds support for SI7021 temperature and humidity. This sensor brings performance and power savings over the DHT22, see sensor_test folder of this repo for sensor evaluation and comparison.

BLOG POST
FORUM POST

Firmware

PlatformIO is recommended as the easiest way to compile and upload Arduino compatible firmware for emonTH. One of the big advantages of using PlatformIO is all libraries can be automatically downloaded. Arduino IDE can also be used but libraries must be manually installed.

Compile & Upload Firmware Using PlatformIO

For a full guide and installing and using PlatformIO (including visual IDE) see 'Compiling' User Guide Section. Assuming platformIO is installed

$ git clone https://github.com/openenergymonitor/emonth2
$ cd emonth2
$ pio run
$ pio -t upload

Hardware

emonTH hardware is fully open-source. See hardware folder of this repo for Gerbers, Eagle CAD design, BOM & port map.