Upgraded Electronics Fun Kits (4 Versions) for Arduino, Raspberry Pi, STM32

The highest cost performance knit with more than 300Pcs components The datasheet is available to download from our official website or you can contact our customer service Better improvement from our customers' suggestion Great quality and packing in a paper box Not including the controller board Components description 74HC595 At some time or another, you may run out of pins on your UNO board and need to extend it with shift registers. This example is based on the 74HC595. The datasheet refers to the 74HC595 as an "8-bit serial-in, a serial or parallel-out shift register with output latches; 3-state." In other words, you can use it to control 8 outputs at a time while only taking up a few pins on your microcontroller. You can link multiple registers together to extend your output even more. 4N35 The 4N35 is an optocoupler for general purpose applications. It consists of gallium arsenide infrared LED and a silicon NPN phototransistor. When the input sig