maxhbr / zephyr-rail

Macro stacking with an mcu. Based on subfolder from https://github.com/maxhbr/my-zephyr-workspace

A macro stacking rail

Mechanics

• Rail: HiWin KK5002P
• Stepper Motor: iCL Series NEMA 17 Integrated Closed Loop Stepper Motor
• Arca Swiss Clamp round, diameter 60mm: link to mjkzz
• Camera Plate 200mm: LEOFOTO Quick Release Plate PL-200

Some adapters and parts are 3D printent. See ./3d-print.scad.

Electronics

Optocopplers to drive the stepper motor

IR LED driver

The Camera is controlled via IR. The IR LED is driven by a transistor.

Controller

MCU:

• STM32H747I-DISCO
• B-U585I-IOT02A with Adafruit 2.4” TFT
• ~~WIO Terminal~~ only the first three gpio-keys work and PWM is not clear

The firmware is written with zephyr. The code is in ./src and the project root is ./.