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. ⭐ Key Features �� 8 Independent Optocoupler ChannelsEach channel uses a dedicated PC817 optocoupler for full electrical isolation. ⚡ Wide Voltage CompatibilitySupports 3.3V / 5V logic inputs and switches output voltages from 3.3V up to 30V DC. �� Strong Electrical IsolationPhotoelectric isolation effectively blocks electrical noise, transients, and ground loops. �� Configurable Output LogicOnboard jumper allows selection of active-high or active-low output, adapting easily to different control requirements. �� MCU & PLC FriendlyCompatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi GPIO, and PLC digital outputs. �� Compact Multi-Channel DesignIdeal 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 ⚠️ Important Notes• Output current is limited to 10mA per channel (voltage and current are inversely related).• Not suitable for high-speed signals or PWM above ~3kHz. For faster switching, use a high-speed optocoupler. �� Compatible With • Arduino (Uno, Mega, Nano)• ESP32 / ESP8266• Raspberry Pi GPIO• STM32 microcontrollers• PLC digital I/O• Relay, MOSFET, and transistor driver stages ⚙️ Typical Applications • PLC signal interfacing• Microcontroller input/output isolation• 3.3V / 5V to 12V / 24V level shifting• Industrial automation systems• Relay, MOSFET, and transistor control• Noise-sensitive or mixed-voltage circuits• Ground loop and interference protection �� Package Includes • 1 × PC817 8-Channel Optocoupler Isolation Module
