4-CH Optocoupler Isolation Module

1. Function: Use low level to control high level. For example, use the 3V or 5V voltage of the microcontroller to control the 9V or 12v voltage.

2. HVCC should not exceed 24V. The output current of the output port OUT1/OUT2/OUT3/OUT4 is equal to HVCC/5.1K, and the current sink is 500ma.

3. This module uses Toshiba TLP281 chip 5. Input and output instructions:

Input: IN1/IN2/IN3/IN4, connect to the IO port of the microcontroller or Arduino, GND is connected to the GND of the MCU or Arduino development board. IN1/IN2/IN3/IN4 control OUT1/OUT2/OUT3/OUT4, respectively.
Output: OUT1/OUT2/OUT3/OUT4
Output: HVCC: Connect the controlled high voltage positive terminal, HGND connection is controlled high voltage negative
Use: When IN1 is high, the corresponding OUT1 voltage is equal to HVCC. When IN1 is low, the voltage of OUT1 is equal to HGND.