User Manual

Here you should see eight LEDs light up one by one, and then all light up and dim after a

while; then eight LEDs will light up from rev erse direction one by one, and then all light up

and then dim after a while. This cycle w ill keep running.

Further Exploration

In this experiment, three Raspberry Pi GPIOs are used to separately control 8 LEDs based on

74HC595. I n fact, 74HC595 has another powerful function – cascade. With cascade, you can

use a microprocessor to control more peripherals. We'll check more details later.

SunFounder