Optical Isolator PC817-B DIP-4 SHARP

Description

2 PZ PC817-B DIP-4 SHARP

Tutorial: How to Use PC817-B DIP-4 SHARP

The PC817-B DIP-4 SHARP is an optical isolator used to protect electronic circuits. Suitable for beginners and intermediates in electronics.

What you need

• PC817-B DIP-4 SHARP
• Arduino or compatible microcontroller
• 1 kΩ resistor
• Power supply (5V)

Steps

1. 1. Mount the two PC817-B on the printed circuit board.
2. 2. Connect pin 1 to VCC (5V).
3. 3. Connect pin 4 to GND.
4. 4. Connect pin 2 to the input signal (5V or GND).
5. 5. Connect pin 3 to the resistor (1 kΩ) and then to the output signal.
6. 6. Connect the power supply to the microcontroller.
7. 7. Load the source code.
8. 8. Check the proper functioning with an LED.

Mini project

Create a simple optical isolator with a button and an LED.

Common mistakes

• Connect pin 1 to GND instead of VCC.
• Omit the protection resistor.
• Connect pins 2 and 3 directly without resistance.
• Do not verify proper functioning with a multimeter.

Recommended accessories

• Arduino Uno
• LED
• Button
• Multimeter

Frequently asked questions

How can I verify proper functioning?
Measure the voltage between pins 2 and 3 with the multimeter.

Which pins to use for input and output signals?
Use any pin of the microcontroller for the input signal and pin 3 for the output signal.

Can I use a different power supply than 5V?
Check the datasheet to see if the component supports other voltages.

Which resistor to use?
Use a 1 kΩ resistor as a minimum.