Function:

1. Use low level control high. For example, microcontroller use 3V or 5V voltage to control 9V or 12v voltage.
2. HVCC not exceed the maximum 24V. Output port OUT1 / OUT2 / OUT3 / OUT4 maximum output current is equal to HVCC / 5.1K, the maximum absorption current 500mA.
3. This module uses the Toshiba TLP281 chip.

Input / Output Description:

• Inputs: IN1 / IN2 / IN3 / IN4, connected microcontroller or Arduino IO port, GND and microcontroller Arduino development board or GND connection. IN1 / IN2 / IN3 / IN4 control OUT1 / OUT2 / OUT3 / OUT4.
• Output terminals: OUT1 / OUT2 / OUT3 / OUT4
• Output terminal: HVCC: connect the high voltage controlled positive, HGND connect the high voltage controlled negative
• Use: When IN1 is high level, the corresponding OUT1 voltage equal to HVCC, when IN1 is low, OUT1 voltage equal to HGND