Filament Meter

thingiverse

Simply measure your remaining filament before starting a print. If you want the PCB, I have it for sale - just email me at www.kjell@startsoft.no. Arduino code: Don't forget to add # before the first three lines!!!!!!! include "avr/interrupt.h"; include Arduino.h include U8x8lib.h U8X8_SSD1306_128X64_NONAME_SW_I2C u8x8( /* clock=*/ 2, /* data=*/ 0, /* reset=*/ U8X8_PIN_NONE ); // Digispark ATTiny85 int pulse = 0; void setup(void) { u8x8.begin(); GIMSK = 0b00100000; // Turns on pin change interrupts PCMSK = 0b00001000; // Turns on interrupts on pins PB3 sei(); // Enables interrupts } void loop(void) { u8x8.setFont(u8x8_font_victoriabold8_r); u8x8.drawString(1,2,"Reset and drag"); u8x8.setCursor(1,4); u8x8.print(" filament "); u8x8.setCursor(2,6); u8x8.print("cm: "); u8x8.setCursor(8,6); u8x8.print(pulse / 3.53); } ISR(PCINT0_vect) { pulse = pulse + 1; }