DESCRIPTION :
PC817 8-Channel Optocoupler Isolation Module – 3.3V to 30V Signal Voltage Converter | AuscomTech
The PC817 8-Channel Optocoupler Isolation Board is a compact, high-density solution for signal isolation and voltage level conversion between low-voltage logic systems and higher-voltage control circuits.
Using PC817 optoelectronic isolators, this module protects sensitive controllers from noise, voltage spikes, and ground loops while enabling safe and reliable multi-channel control.
It is ideally suited for Arduino, ESP32, Raspberry Pi, PLCs, and industrial automation systems where multiple isolated signals are required in a small footprint.
FEATURES :
🔢 8 Independent Optocoupler Channels
Each channel uses a dedicated PC817 optocoupler for full electrical isolation.
⚡ Wide Voltage Compatibility
Supports 3.3V / 5V logic inputs and switches output voltages from 3.3V up to 30V DC.
🔒 Strong Electrical Isolation
Photoelectric isolation effectively blocks electrical noise, transients, and ground loops.
🔧 Configurable Output Logic
Onboard jumper allows selection of active-high or active-low output, adapting easily to different control requirements.
🧠 MCU & PLC Friendly
Compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi GPIO, and PLC digital outputs.
📦 Compact Multi-Channel Design
Ideal for projects requiring multiple isolated signals without multiple single-channel boards.
📊 Technical Specifications
| Specification | Details |
|---|---|
| Optocoupler | PC817 |
| Channels | 8 |
| Input Signal Voltage (Drive Side) | 3.3V – 24V DC |
| Output Voltage Range | 3.3V – 30V DC |
| Max Output Current | 10mA per channel |
| Output Logic | Jumper selectable (Active High / Active Low) |
| Isolation Type | Photoelectric (Optocoupler) |
| Signal Frequency | ≤ 3kHz |
