openlight

send/receive commands from milight devices

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Libre Connect
Download Openlight / LibreConnect / Source

What is OpenLight

openlight_photo
Openlight is an open source alternative for milight gateway based on an arduino nano (clone).
Based on Henryk Plötz research : https://hackaday.io/project/5888-reverse-engineering-the-milight-on-air-protocol

Milight bulbs are not controlled using WIFI, it uses its own protocol on 2.4Ghz.
openlight Routing
Our arduino will directly control the light bulbs using nrf24l01+ radio modules without using the WIFI gateway.

Tactile switchs are not mandatory, you can use it to turn on/off a lamp.
You need to add the code of your lamp in the code, last hexadecimal values will be ignored as it is updated incrementally:

int on [7] = { 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x01};
int off [7] = { 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x01};

Commands

/info : display name:port

openlight:42003

When a code is received it will be displayed as

0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x01

Enter a previously received code to send it

0x00,0x00,0x00,0x00,0x01,0x03,0x00

How to build openlight

  • Check http://pdf.libre.ovh for more information.

Upload

  • Copy arduino/libraries into your arduino sketchbooks
  • Upload arduino/openlight_gateway/openlight_gateway.ino

Components

  • 1 Arduino nano (ch340g): 2.50€
  • 1 nrf24l01+ (radio module) : 1€
  • 2 Tactiles switchs : 2€

    Cost : 5.50€

Wiring

nrf modules use 3.3V not 5V, pins are 5v tolerant

nrf_pinout

touchsensor

NRF
D9 : orange
D10 : yellow
D11 : blue
D12 : purple
D13 : green
3.3V: red

SWITCHS
D4 OFF SIG
D5 ON SIG
5V: VCC

Licences

openlight.ino

  • Author : Rémi Sarrailh (madnerd.org)
  • Licence : MIT

openmili