817 4 Channel Optocoupler Isolated Board Voltage Converter Adapter Module

817 4-Channel Optocoupler Isolated Board Voltage Converter Adapter Module

🔹 Detailed Description:
The 817 4-Channel Optocoupler Isolated Board is a voltage level conversion module designed for applications requiring signal isolation and high-voltage control. This module efficiently converts 3.3V or 5V signals to control higher voltage levels (3.6V–24V) while maintaining electrical isolation for enhanced anti-interference capabilities.

Equipped with photoelectric isolation, this module can drive high-power transistors, MOSFETs, and 24V relays, making it ideal for industrial automation, PLC interfaces, motor control, and microcontroller-based applications. With the built-in jumper cap, users can configure the output mode (high or low potential) as needed.

⚠ Important Note:
If using this module with pulse signals, keep in mind that the 817 optocoupler supports frequencies below 4kHz. If the control signal exceeds 4kHz, this module will not function properly.

🔹 Key Features:
✔ 4-Channel optocoupler isolation for enhanced safety
✔ Supports voltage conversion from 3.3V/5V to 3.6V–24V
✔ Strong anti-interference capability for stable performance
✔ Can drive MOSFETs, power transistors, and low-power 24V relays
✔ Configurable output mode (high or low potential) using jumper caps
✔ Each channel is independent for multi-voltage control

🔹 Technical Specifications:

• Material: ABS

• Input Voltage: 3.3V / 5V

• Output Voltage: 3.6V – 24V

• Frequency Limit: <4kHz

• Number of Channels: 4

• Isolation Type: Photoelectric isolation

• Application: Industrial control, voltage level conversion, microcontroller interfacing

🔹 Applications:
✅ Microcontroller (Arduino, ESP32, STM32, Raspberry Pi) voltage level shifting
✅ PLC interface and industrial automation
✅ Relay control (low-power 24V relays)
✅ High-power transistor and MOSFET switching
✅ Isolated signal control to prevent electrical noise interference
✅ Smart home and IoT applications