emon-http-arduino

emonlib HTTP JSON server

Super simple JSON HTTP server to read energy monitor status.

Please see open energy monitor projet and emonlib

This code has been tested with this open energy monitor shield and Arduino yun.

Quickstart

• Configure your Arduino yun board with NTP enabled
• Clone this repo
• Setup your project with platformio.org

platformio init --board=yun
platformio lib install 116

• Customize your settings

// Energy monitor setup
emon1.current(1, 60.606);
emon1.voltage(0, 250, 1.7);

• Build code

platformio run

• Upload firmware to Arduino yun

scp .pioenvs/yun/firmware.hex arduino.local:/tmp/
ssh arduino.local '/usr/bin/merge-sketch-with-bootloader.lua /tmp/firmware.hex && /usr/bin/kill-bridge && /usr/bin/run-avrdude /tmp/firmware.hex'

Usage

curl -i 'http://arduino.local:5555'

HTTP/1.1 200 OK
Content-type: text/json

{ "SiteName": "Home", "ModuleName": "mainPower", "Irms": 0.95, "Vrms": 239.87, "RealPower": 126.21, "ApparentPower": 228.76, "PowerFactor": 0.55, "Time": 1442234001, "ExecTime": 1860788 }