Ep 19 Arduino Interface with Bar Graph using Only 7 Pins !!!
Arduino interface with Bar Graph
Normally to interface Arduino with Bar graph needs almost 10 Arduino pins to control each bar. But in this video I used only 7 Arduino pins to control 10 bars of Bar Graph with some changes in Hardware & Software
Components Required:
Arduino Nano https://amzn.to/4cORA8u
Bar Graph https://amzn.to/3UaA9YI
BC547 https://amzn.to/3vw4S96
PCB Board https://amzn.to/3TMO85w