MicroFridge

Firmware for an old fridge, based on MicroFlo dataflow runtime running on Olimex ESP8266.

This is version 2 of the MicroFlo+Arduino-based fridge. The goals of this iteration are to

• Integrate electronics into the fridge itself
• Support creating and debugging the program in Flowhub visual programming IDE
• Have the state of the device observable and configurable. Using MQTT and MsgFlo
• Push MicroFlo forward using a real-world example
• Explore the idea of 'introspectable computing' applied to household appliances
• Try out using SVG+JS to build interactive system models

Status

Just words.

DONE

• MicroFlo: Basic support for ESP8266 devices
• MicroFlo: Initial support for MQTT (on Linux)

TODO

0.1 - minimally works

• Tests: BDD test of fridge flow running on Emscripten or Linux MicroFlo backend
• Port over existing fridge flow from MicroFlo/examples/fridge.fbp
• Port required DS18s20 component to ESP8266. Example code 1, 2
• Graph exposed over MQTT/MsgFlo, can observe state and manipulate configuration
• Design and 3d-print mount/installing
• Move into production, replacing version 1 system

0.2 - basic webinterface

• WebInterface: Serve a static system model, with links
• WebInterface: Ability to see current temp
• WebInterface: Ability to change target temp
• Add NFC tag with link to webinterface
• WebInterface: Add Flowhub live-mode URL (for MsgFlo network)?

0.3 - interactive system model

• MicroFlo: Support FBP protocol onto device (via web or MQTT/MsgFlo forwarding)
• Docs: Conceptual system model
• Docs: add pictures of fridge
• Docs: add schematics/wiring diagrams
• Make conceptual model interactive, connected to live system
• Flowhub: Support for showing conceptual model as "preview". Build MicroFlo runtime comm as HTML, run in iframe, use post-message for forwarding?
• Add support for door switch + light
• Add links to 3d-models in conceptual model

Later

• MicroFlo: Support persistence graph changes
• MicroFlo: Port hysteresis component to use Finito

Maybe

• Put the webinterface live on http://fridge.jonnor.com, in read-only mode
• Design 3d-printed replacement for door-switch
• LED-based light as replacement for lightbulb
• Augmented reality support, overlaying interactive webinterface on phone cameraview, using NFC tag as marker