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u/VASLO_T

Image 1 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 2 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 3 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 4 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 5 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 6 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 7 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 8 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 9 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 10 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 11 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
Image 12 — Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"
▲ 29 r/StandingDesk

Built a custom 4-leg standing desk with my own controller - anyone willing to check how the legs in your desk are wired?"

Hi guys. For the last few months I've been building my (really) custom standing desk for my workplace. I didn't find any solution I really liked — they're either overpriced, locked down, have ugly controllers, or have zero smart home integration. So I decided to build my own from the ground up. I found they sometimes sell only the motorized legs as a spare part for commercially sold standing desk frames. I kinda wanted the 4-legged design with legs spaced in the corners. I had some 2 m by 0.9 m chipboard deck with concrete finish lying around, so I just stick-welded a basic frame to screw the legs onto. Then came the hard part — driving the legs and keeping the table stable. After a few iterations I came up with a driver PCB with an ESP32-P4+C6 module and DRV8873S as a motor driver.

There's an RJ45 connector for a control panel which can be made of simple up/down buttons or some other smarter solution — I'm currently working on an LCD control screen.

There's also a 24V output for a CCT LED strip (I'm planning to build a desk lamp), an mmWave radar connector for presence detection and sit/stand time monitoring, and a pair of QWIIC connectors for some sensors. MQTT support and Home Assistant integration are also planned.

One thing I'm still curious about is how other legs (the ones available around the world) are wired. I started my project by disassembling one to find out there's a simple 24V/4.5A-rated DC motor and a pair of Hall ICs forming a quadrature encoder for position feedback. In my case they're connected as you can see in the attached picture. If someone has some legs and basic measuring equipment within their reach, can you please check your legs? I mean those attached to your desk.

Happy to share more details if anyone's curious.

u/VASLO_T — 3 days ago