Bit-banging SPI control for cascaded shift-registers

One year ago, i worked on bit-banging SPI control for three cascaded serial-shift registers. Practically in this example, that is something from which you can control large number of leds like 10x12 = 120 by using just 3 pins (except power supply). In the circuitary for led, i have used high side as well as … Continue reading Bit-banging SPI control for cascaded shift-registers