# Astro Focuser Controller

Native AVR C firmware for an astronomy electronic focuser prototype.

## Hardware

- Arduino Uno / ATmega328P

- TMC2209 stepper driver (standalone mode)

- Stepper motor

- In/Out momentary buttons

- Home switch input

- Atmel-ICE for programming/debugging

## Current Status

- Timer-driven step generation working

- TMC2209 standalone STEP/DIR/ENABLE control working

- Manual IN/OUT button control working

## Pin Mapping

- STEP: D5

- DIR: D6

- ENABLE: D7

- HOME: D2

- BTN_IN: D8

- BTN_OUT: D9

- STATUS LED: D13

- TEMP ADC: A0

## Notes

This project is being developed in Microchip Studio using native AVR code, not Arduino libraries.