Automated Shutter Electronics Prototype

Job ID: 40238422

Budget: €30 – €250 EUR

I’m looking for an engineer or a small team to deliver a working prototype of the electronics for a automated shutter project.

The system runs on 24V DC and drives two brushed DC motors (each actuator delivers roughly 50 Nm at the output shaft through mechanical gearing). The electronics will sit inside the actuator housing, and I want Wi-Fi connectivity with Home Assistant integration (preferably ESPHome, MQTT is also fine). My preference is one ESP32 controlling both motors, with encoders (A/B) on each output shaft.

I will not use limit switches, so the design should include reliable end-position handling without them: travel learning/calibration, position tracking via encoders, and safe stopping based on current sensing and/or “PWM commanded but encoder not moving” logic (jam/obstruction/ice/wind). Robustness matters: stable power (no brownouts/resets), proper 24V protection (fuse, reverse polarity, TVS), and good EMI/noise handling.

Deliverables: schematic, PCB layout, BOM, Gerbers/source files (KiCad or Altium), and firmware/config for HA, plus a short bring-up/test checklist. Please include relevant experience (24V motor control, encoders, EMI) and a brief proposed architecture/driver choice.