Description

Make your low cost fan smarter, control it from anyway!

Project has been done in Amiqual4Home Equipex Creativity Lab - https://amiqual4home.inria.fr/

Prerequisities

Hardware

• Spark Core with latest firmware updates :

  sudo particle flash --usb cc3000
  sudo particle flash --usb deep_update_2014_06
  

• 3 relays

• A fan

software

• MQTT broker - (do not use mosquitto 1.4.3 - hirotakaster/MQTT#13 )

Setup

hardware

• For this model, there are four buttons for three speed and one stop. They are connected to the input pullup sparkcore in D0, D1 , D2 associated to 3 relays to control motor speed.

* The motor speed are controlled by three wire : * Blue = speed 1 * White = speed 2 * Red = speed 3

* connect each relay on a three wire and on live wire (brown 220v),The relay are connected to the output sparkcore in D3, D4 , D5 and Vin(5v), GND.

* power supply @5V using an old phone charger.

Commands

Commands can be sent either using MQTT protocol or using Particle API

Control commands - as string

• CMD_NAME =
  • POWEROFF
  • SPEED1
  • SPEED2
  • SPEED3

Fan control over particle API

Command line syntax :

curl https://api.spark.io/v1/devices/'SPARK_CORE_ID'/fanAPI -d access_token='YOUR_TOKEN' -d "params=CMD_NAME"

e.g. :

curl https://api.spark.io/v1/devices/'SPARK_CORE_ID'/fanAPI -d access_token='YOUR_TOKEN' -d "params=SPEED2"

Fan control over MQTT

• a valid MQTT broker must be defined in Photon code mqttserver variable

topics

"fan/fanCmds" : fan control commands

In this topic, payload containing command name must be sent,

e.g :

mosquitto_pub -h BROKER_IP -t fan/fanCmds -m CMD_NAME

"fan/particleCloud" : fan cloud connection

To enable cloud connection

mosquitto_pub -h BROKER_IP -t fan/particleCloud -m ENABLE

To disable cloud connection

mosquitto_pub -h BROKER_IP -t fan/particleCloud -m DISABLE

Input commands

• To get status :

  curl https://api.spark.io/v1/devices/'SPARK_CORE_ID'/state\?access_token\='YOUR_TOKEN'

  • state = 0 : OFF
  • state = 1 : SPEED1
  • state = 2 : SPEED2
  • state = 3 : SPEED3

References

• https://community.particle.io/t/getting-mac-address-of-unconnected-core/8473/5
• http://blog.particle.io/2014/08/06/control-the-connection/