pc817c

1 год назад

This video explores the PC817 optocoupler, a four-pin device used in various applications. The presenter discusses the device's functionality, internal components, and how it can be used as a transistor. They also compare the forward voltage of the infrared LED in the optocoupler to a standard red LED.

3 года назад

This video demonstrates how to build a circuit that makes LEDs flash like a heartbeat. The creator provides a list of necessary components, including LEDs, capacitors, resistors, and an optocoupler. They also show how to assemble the circuit on a PCB and connect it to a 9-volt battery.