Assumptions/Features of Minion Network

• Slaves
  • I2C address is hardcoded.
  • Ack is received form master and error is generated in case no Ack is received.
• Master
  • Able to discover new joining slaves. (Doesn't have knowledge of slave addresses beforehand)
  • Keep tracks of all the subscriptions and performs proper message delivery to all the slaves.

Assumptions/Features of Minion Modules

• Minions are able to pass power & I2C cable to each other.
• Each minion is modularized to be able to easily plug & unplug from existing system.
• Each minion is relatively cheap to create.

Simple Module Ideas using Minion Network

• Human Detector Minion (PIR sensor)
  • publish("/human-detector", "{'data': 'timestamp'}"
  • subscribe("/human-detector/config")
• Light Detector Minion
  • publish("/light-sensor/analog-value", "{'photoresistorValue': '26'}")
  • publish("/light-sensor/threshold-status", "{'isThresholdReached': 'true'}")
  • subscribe("/light-sensor/config")
• Alarm Minion
  • subscribe("/alarm-status")
• Button Minion
  • publish("/button-press", "{'buttonPress': 'true'}"
• LED Minion
  • subscribe("/led-status")
• Buggy Minion
  • publish("/sound-recording-data", "{some-audio-buffer-data-here}"
  • subscribe("/sound-recording-status")
• Battery Minion
  • subscribe("/battery-on-off")
  • publish("/battery-status", "{'capacity': '56'}"
• Tank Body Minion
  • subscribe("/moving-direction")
  • subscribe("/speed")
• Offline Storage Minion
  • subscribe("/store-data")
  • publish("/offline-storage-capacity")
• Wifi Minion (MQTT-Minion Net. Bridge)
  • Minion Network
    • subscribe("/up-to-date-subscription-list")
    • publish("/request-subscription-list", "{}")
    • publish("/some-existing-subscription-in-offline-net", "a-message-received-from-real-mqtt-network")
  • MQTT Network
    • publish("/some-existing-subscription-in-offline-net", "a-message-received-from-minion-network")
    • subscribe("/all-of-the-existing-subscription-in-offline-net")

Possible Projects Using Minion Network/Modules

• Simple home alarm system.
• Internet connect button.  (Wifi Minion needed)
• Internet connected car. (Wifi Minion needed)