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#Welcome to the photon-home wiki!

Overview

This wiki will describe an OpenHAB domotica setup which makes use of several Photon Wifi microprocessor boards. Connected to the Photons are sensors and other hardware.

OpenHAB

version 1.7.x

RESTfull

T.B.D.

MQTT

MQTT is a machine-to-machine (M2M)/"Internet of Things" connectivity protocol. It was designed as an extremely lightweight publish/subscribe messaging transport.

External links

• http://mqtt.org/
• https://en.wikipedia.org/wiki/MQTT
• http://mosquitto.org/

Hardware

Raspberry Pi (version B)

Particle Photon

External links:

• https://www.openhomeautomation.net/cloud-data-logger-particle-photon/

ESP8266###

External links:

• http://www.esp8266.com/
• http://iot-playground.com/component/tags/tag/11-esp8266
• http://www.instructables.com/id/Using-the-ESP8266-module/
• http://www.instructables.com/id/ESP8266-WiFi-Shield-for-Arduino-and-other-micros/
• http://makezine.com/2015/04/01/esp8266-5-microcontroller-wi-fi-now-arduino-compatible/
• http://benlo.com/esp8266/

Sensors and peripheral

LDR (Light measuring)

Many of the Photons have an LDR sensor to measure and log the light situation in the room. We need a 10 kOhm resistor between de LDR and de GND.

Components

• 1x LDR
• 1x 10kOhm resistor

External links: http://www.instructables.com/id/How-to-Use-a-Light-Dependent-Resistor-LDR/

RGB LED strip (color LED light)

A 12V RGB LED strip is connected to a Photon which can be controlled over the internet. It is possible to control the color of the light of the strip. It is possible to turn LED on/off and to control (dim) the light brightness.

Components

• 3x TIP120 / 3x TIP31 / 3x ZTX689B
• 3x 100 Ohm , 220 Ohm Resistor
• 1x 12V adaptor
• 1x 12V -> 5V Polulu D24V10F5 (option)

External links:

• https://learn.adafruit.com/rgb-led-strips/usage
• https://community.particle.io/t/wifi-led-driver/12835/7
• http://blog.falafel.com/controlling-an-rgb-led-on-a-photon-with-a-uwa-color-picker/
• https://github.com/adafruit/LPD8806
• https://github.com/adafruit/HL1606-LED-Strip-PWM
• https://community.particle.io/t/pwm-rgb-led-on-the-photon/14941
• http://mitchtech.net/raspberry-pi-pwm-rgb-led-strip/
• http://www.instructables.com/id/RGB-LED-Strip-Controller/
• https://community.particle.io/t/wiring-to-drive-an-rgb-led-strip/3888
• https://upverter.com/happymeerkat/3b8cb71b986b611b/Spark-Led/

White LED strip (white LED light)

A 12V LED strip is connected to a Photon which can be controlled over the internet. It is possible to turn LED on/off and to control (dim) the light brightness.

Components

• 3x TIP120 / 3x TIP31 / 3x ZTX689B
• 3x 100 Ohm , 220 Ohm Resistor
• 1x 12V adaptor

External links:

• http://iot-playground.com/esp8266-led-dimmer

PIR (motion detection)

Several Photons have a PIR attached to sense motion. Upon motion it is possible to e.g. turn on a LED strip or send an alert.

Components

• 1x PIR

External links:

• http://iot-playground.com/esp8266-wifi-pir-motion-sensor

DS18S20 (Temperature)

Many of the Photons have a temperature sensor to measure and log the temperature in the room.

Components

• 1x DS18S20 sensor
• 1x 4.7 kOhm resistor

External links:

• http://iot-playground.com/esp8266-wifi-ds18b20-temperature-sensor
• http://stuff.nekhbet.ro/2009/08/23/how-to-use-the-ds18s20-and-ds18b20-temperature-sensors-with-arduino.html
• http://datasheets.maxim-ic.com/en/ds/DS18S20.pdf
• https://arduino-info.wikispaces.com/Brick-Temperature-DS18B20

IR LED Receiver

To send a command to the system an IR LED receiver can be added.

Components

• 1x TSOP-1838 sensor / 1x TSOP-38238 sensor

External links

• https://arduino-info.wikispaces.com/IR-RemoteControl
• http://www.sbprojects.com/knowledge/ir/index.php
• https://learn.adafruit.com/ir-sensor

IR LED Transmitter ()

To transmit a command via IR e.g. to turn off the TV.

DHT22 / DHT11 (Temperature and humidity sensor)

To measure temperature and humidity

Components

• 1x resistor ?? Ohm
• 1x DHT11 / DHT22 sensor

External links

• http://akizukidenshi.com/download/ds/aosong/DHT11.pdf
• http://iot-playground.com/2-uncategorised/70-esp8266-wifi-dht22-humidity-sensor-easyiot-cloud-rest-api

BMP180 (Barometer, Temperature)

To measure the air pressure and temperature e.g. to forecast the weather.

Components

• 1x BMP180 or BMP85 sensor (breakoutboard)

External links:

• http://iot-playground.com/esp8266-air-pressure-and-weather-forecast-sensor

DoorContact Sensor (MC-38)

Sensor to check whether a door/window is open or closed.

Components

• 1x Reed relay (MC-38)
• 1x 100nF ceramic capacitor

External links:

• http://iot-playground.com/nrf24l01-low-power-door-window-sensor
• http://iot-playground.com/esp8266-door-window-sensor-nodemcu-lua-no-arduino

DoorBell (two wires)

T.B.D

Relay switch

Relay to switch 220/230V current.

External links:

• http://iot-playground.com/esp8266-relay-switch

NRFL01 (Wireless 2.4GHz communication)

Components

• NRFL01 board

External links

• https://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo
• https://arduino-info.wikispaces.com/nRF24L01-RF24-Examples

RTC (DS1307)

Real-Time Clock

Components

• DS1307 (board)

External links

• https://arduino-info.wikispaces.com/DS1307_RealTime_Clock_Brick
• http://github.com/adafruit/RTClib

Information

Libraries

• https://arduino-info.wikispaces.com/Arduino-Libraries
• https://arduino-info.wikispaces.com/Arduino-Libraries#NewLib
• https://arduino-info.wikispaces.com/CombiningArduinoSketches
• http://arduino.cc/en/Reference/Libraries

Input / Output

• https://arduino-info.wikispaces.com/Analog-Output (Analog)
• http://www.makingthings.com/documentation
• https://arduino-info.wikispaces.com/PWM (PWM)
• https://arduino-info.wikispaces.com/Arduino-PWM-Frequency (PWM)

Cables

• http://arduino-info.wikispaces.com/Cables

LCD

• http://arduino-info.wikispaces.com/LCD-Blue-I2C