LightHub

is Flexible, Arduino-Mega/Arduino DUE/ESP8266 based SmartHome controller

It allow to connect together:

• Contact sensors (switches, buttons etc)
• 1-Wire temperature sensors (up to 20 on single bus)
• Standard nonexpensive Relay board with TTL inputs, (like this) to control AC powered lamps, floor heaters, boilers etc
• Standard LED and AC DMX-512 dimmer boards
• Modbus RTU devices (Currently, are deployed two types of Modbus devices: AC Dimmer and Ventilation set (Based on Vacon 10 controller)
• Simple DMX wall sensor panel

Where is possible both, to configure local control/mapping between inputs and outputs (light, floor heating thermostats) and remote control from Openhab or Openhab2 Smarthome software

Scalability is virtually unlimited: Setup so many controllers you needed in most convenient places of your house - MQTT broker will allow controllers communicate each other and with Openhab and propagate commands across network

Prease refer our Wiki for insructions.

Finished portation of proejct to Arduino DUE and ESP8266 (ESP32 not tested)

Compiled image has been added to compiled/ folder use avrdude -v -V -patmega2560 -cwiring -b115200 -D -Uflash:w:lighthub.ino.hex:i to flash your Mega 2560

or

/Users//Library/Arduino15/packages/arduino/tools/bossac/1.6.1-arduino/bossac -i -d --port=cu.usbmodem1451 -U false -e -w -v -b lighthub.ino.bin -R to flash your DUE

(need to correct path and port, of course)

Dependences

(quite big number of libs required. Use git clone to have your local copy in your Arduino libs folder) Please check updates for all dependences.

For patched libraries, appropriate GitHub repo URL provided:

• Arduino-Temperature-Control-Library https://github.com/anklimov/Arduino-Temperature-Control-Library
• DS2482_OneWire https://github.com/anklimov/DS2482_OneWire
• FastLED
• Wire (standard)
• Artnet https://github.com/anklimov/Artnet.git
• DmxSimple https://github.com/anklimov/DmxSimple (for AVR) or https://github.com/anklimov/ESP-Dmx (for ESP) or https://github.com/anklimov/DmxDue (for DUE)
• HTTPClient (for AVR) https://github.com/anklimov/HTTPClient or https://github.com/arduino-libraries/ArduinoHttpClient for other platforms
• aJson https://github.com/anklimov/aJson
• CmdArduino https://github.com/anklimov/CmdArduino
• EEPROM (standard for AVR) or DueFlashStorage for DUE
• ModbusMaster https://github.com/anklimov/ModbusMaster
• pubsubclient-2.6
• DMXSerial-master (for AVR) https://github.com/anklimov/DMXSerial
• Ethernet https://github.com/anklimov/Ethernet
• SPI (standard)

Portation from AVR Mega 2560 to SAM3X8E (Arduino DUE) done since v 0.96

Platforms specific details:

AVR version is basic and have all functions *DMX-out is software (DMXSimple) on pin3

SAM3X8E: *default PWM frequency *both, DMX-in and DMX-out are hardware USART based. Use USART1 (pins 18 and 19) for DMX-out and DMX-in

ESP: *DMX-OUT on USART1 TX *DMX-IN - not possible to deploy in ESP8266 *Modbus - disabled. Might be configured in future on USART0 instead CLI/DEBUG

since v. 0.97:

There is first attempt to use Wiznet 5500 (still not stable enough) Need to use compiler directive -D Wiz5500 and https://github.com/anklimov/Ethernet2 library

First attempt to use platformio toolchain for compiling (work not completed yet)

Due compilation issue "USART0_Handler redefinition"

Please, open /variants/arduino_due_x/variant.cpp file, then edit USART0_Handler method definition like this

void USART0_Handler(void) attribute((weak));