Flower Power Digital

thingiverse

https://youtu.be/06Y0ZvgyfAQ Two affordable 24BYJ stepper motors draw intricate flowers. Using two ATtiny85 ICs on a single power supply necessitates a 100nF capacitor directly between Gnd and 5V of both ATtinies. One stepper motor rotates the platform: //ATtiny 28BYJ full step mode int MA = 0; int MB = 1; int MC = 2; int MD = 3; int t=3; void setup() { pinMode(MA, OUTPUT); pinMode(MB, OUTPUT); pinMode(MC, OUTPUT); pinMode(MD, OUTPUT); } void loop() { digitalWrite(MA, HIGH); digitalWrite(MB, HIGH); digitalWrite(MC, LOW); digitalWrite(MD, LOW); delay(t); digitalWrite(MA, LOW); digitalWrite(MB, HIGH); digitalWrite(MC, HIGH); digitalWrite(MD, LOW); delay(t); digitalWrite(MA, LOW); digitalWrite(MB, LOW); digitalWrite(MC, HIGH); digitalWrite(MD, HIGH); delay(t); digitalWrite(MA, HIGH); digitalWrite(MB, LOW); digitalWrite(MC, LOW); digitalWrite(MD, HIGH); delay(t); } While the other stepper motor operates the pen: //ATtiny 28BYJ full step mode int MA = 0; int MB = 1; int MC = 2; int MD = 3; int t=3; void setup() { pinMode(MA, OUTPUT); pinMode(MB, OUTPUT); pinMode(MC, OUTPUT); pinMode(MD, OUTPUT); } void loop() { digitalWrite(MA, HIGH); digitalWrite(MB, HIGH); digitalWrite(MC, LOW); digitalWrite(MD, LOW); delay(t); digitalWrite(MA, LOW); digitalWrite(MB, HIGH); digitalWrite(MC, HIGH); digitalWrite(MD, LOW); delay(t); digitalWrite(MA, LOW); digitalWrite(MB, LOW); digitalWrite(MC, HIGH); digitalWrite(MD, HIGH); delay(t); digitalWrite(MA, HIGH); digitalWrite(MB, LOW); digitalWrite(MC, LOW); digitalWrite(MD, HIGH); delay(t);