Digital voltmeter and segment display with attiny 13A 2020.06.28
- Analog reading of four digit number represent in 7-segment display
- Connect voltage divider between Vin,A0,GND.
- Set Max value.
- Segment display is controlled by 74LS595 shift registers
- pin B to H of first shift register goes to 7 segments
- pin B to F of second shift register goes to common pins