Urgent.News

What's breaking now, across thousands of outlets.

More in Tech

Design notes for a touch UI that controls a motor next to TIG high-frequency start

I built a welding positioner (a motorized rotator for pipe and round work) and wrote its controller: an ESP32-P4 touchscreen board, LVGL 9.6, a NEMA 23 stepper and a PUL/DIR driver.

  • ESP32-P4 touchscreen board controls motorized rotor in welding positioner controller
  • High-frequency TIG welder noise interferes with touch input, mitigated by firmware design
  • Touch read errors due to HF noise handled with 150 ms active press duration

More from Sunday 15 November →