RoboDesk

Read LOGICDATA protocol to control height of a powered sit/stand desk.

LOGICDATA protocol decoding from phord's RoboDesk

Setup

Make sure to rename all *.example files and adjust variables, as of now we have:

• firmware/platformio.ini.example
• firmware/src/Credentials.h.example
• firmware/src/pins.h.example
• firmware/src/Wificonfig.h.example (optional)

Features:

• Double tap a direction to go to a hardcoded target height
• Leverage MQTT to get / set height
  • Subscribed topics:
    • <MQTT_TOPIC>/set > e.g. 90 (sets the table height to 90 cm)
    • <MQTT_TOPIC>/cmd > ...
      • up (moves the table to the predefined high position highTarget)
      • down (moves the table to the predefined low position lowTarget)
      • stop (stops the table immediately)
      • ping (answers with pong on the same topic)
  • Published topics:
    • <MQTT_TOPIC>/state (up/down/stopped)
    • <MQTT_TOPIC>/height (height in cm)
    • <MQTT_TOPIC>/button (single/double up/down)
    • <MQTT_TOPIC>/lastConnected (will set and retained on connect with current version / build number)

Files:

• firmware: platformio code for the d1 mini
• schematic: kicad schematic for the connections between the d1 mini and the desk
  • Two different but similar versions: desk-schematic and Layout-Wemos-ProtoBoard
• schematic\case\robodesk-case.scad: Enclosure using https://www.thingiverse.com/thing:1264391
• images\logicdata-controller.xcf: orthorectified top and bottom image of the logicdata controller SMART-e-2-UNL-US

Hardware

• Wemos/LOLIN D1 mini
• Wemos ProtoBoard Shield
• 2x 10kΩ pull-down resistors
• Circular DIN 7P male & female connectors
• 3PDT On-On switch (e.g. MIYAMA MS 500M-B)

Links

• Blog post for version 1: https://technicallycompetent.com/hacking-logicdata-desk/
• Blog post for version 2: https://technicallycompetent.com/logicdata-desk-v2/