StandingDesk

Standing Desk Controller (macOS + Arduino)

This repo contains a macOS test app and matching Arduino firmware to control a custom-built standing desk using serial communication.

Find out more on YeahNahDIY.com

⚠️ This project is experimental and not production ready. The code is rough and intended for testing purposes only.

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🔌 Arduino Firmware

This firmware runs on an Arduino-compatible board to control the physical desk hardware (motor driver, buttons, rotary encoder).

Features

• Manual buttons for up/down
• Rotary encoder for height tracking
• 3 preset memory buttons
• EEPROM save/restore of height
• Serial interface for remote commands and status
• Homing support
• Movement timeouts

Pin Mapping

Serial Protocol (Same as macOS)

• Send a, b, c to go to presets

• Send s to stop

• Send a number like 950 to go to that height in mm

• Desk replies with state + height every cycle, e.g.:

  movingUp
  850

Notes

• EEPROM is used to persist height between restarts
• Desk must be homed (manually or via a/HOME button) for presets to work
• Height is calculated using encoder steps with a conversion factor (heightOffset)
• All output is in mm

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🛠 Requirements

• Arduino-compatible board (Uno, Nano, etc.)
• Motor driver circuitry
• Rotary encoder (TWO03 latch mode)
• Desk with UP/DOWN inputs
• macOS app built via Xcode
• USB serial connection

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💻 macOS App

Features

• Control your desk height via a slider
• Three preset position buttons (a, b, c)
• Realtime desk state and height display
• Serial communication via ORSSerialPort

Setup

1. Open the project in Xcode.

2. Find your serial port:

   let ports = ORSSerialPortManager.shared().availablePorts
   print(ports)

3. Update this line in ViewController.swift with the correct serial path:

   serialPort = ORSSerialPort(path: "/dev/cu.usbserial-840")!

4. Build and run.

Serial Protocol

The macOS app sends the following over serial:

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⚠️ Disclaimer

This is test software. No safety limits or failsafes are implemented. Use at your own risk.