Barn Door Tracker for Astrophotography

thingiverse

Materials 2 x Ball Bearing 608zz 1 x M8 Screw 1 x M5 Threaded Rod 5 x M5 Nut 4 x M3 Screw 4 x 3mm Washer 1 x Nema 17 Motor For Cheap Motor Option (28byj-48): https://www.thingiverse.com/thing:2841827 1 x 1/4 Nut 1 x 1/4 Screw 1 x Arduino Uno 1 x Pololu A4988 1 x Wade Small Gear Laser Mount: https://www.thingiverse.com/thing:3046560 Scope Remix: https://www.thingiverse.com/thing:2982009 Red Dot Mount: https://www.thingiverse.com/thing:3212065 Firmware with Extra Functions and Electronic Box: https://www.thingiverse.com/thing:3113983 An Additional Piece to Add a Nut: https://www.thingiverse.com/thing:1853187 Remix for 28byj-48 Stepper https://www.thingiverse.com/thing:2841827 Arduino Code #define DELAY 3997 // 1.09 Rounds per Minute on the Big Gear int Paso = 9; const int Led = 13; int Direccion = 8; int LedState = LOW; unsigned long PreviousMillis = 0; const long Interval = 500; void Setup() { pinMode(Paso, OUTPUT); pinMode(Direccion, OUTPUT); pinMode(Led, OUTPUT); } void Loop() { unsigned long CurrentMillis = millis(); if(CurrentMillis - PreviousMillis >= Interval) { PreviousMillis = CurrentMillis; if(LedState == LOW) LedState = HIGH; else LedState = LOW; digitalWrite(Led, LedState); } digitalWrite(Paso, LOW); digitalWrite(Paso, HIGH); delayMicroseconds(DELAY); }