esp8266 / esp32 mqtt sensor node framework

• consists of server side tool to
  • manage devices / configurations
  • build firmware for each device
  • manage update needs
  • send OTA firmware updates
• and tiny foodprint config app that wastes as little as possible resources for
  • WIFI setup
  • MQTT setup
  • OTA setup
  • retrieval / flashing of actual app via OTA
• and the actual device specific firmware
  • focus on sensor node type activities
  • follows the mqtt-smarthome architecture
  • does not know how to do OTA but only how to boot into the config app

• focus on esp8266 / esp8252 / esp32 devices
• ability to run on a series of different devices down to 1Mb (256KB) esp01
• config of the device is stored on the device as well as on the server for fault tolerance

• connect device to PC via RS232
• connect to server
• open new device wizard
• select hardware type
• build config app for the hardware type
• configure device specifics (name, connected sensors etc.)
• build actual app for the hardware type and configuration
• flash config app (ideally through browser granted RE232 access?)
• flash actual app through OTA