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Key Features

• Multi-Channel Control: Equipped with 8 independent relays capable of switching loads up to 10A each, allowing for complex automation of multiple devices.

• Opto-Isolation Protection: Includes onboard photocouplers that provide complete electrical isolation between the input control logic and the high-power output side.

• Status Indicators: Features individual LED diagnostics for each channel to provide real-time visual confirmation of which relays are currently energized.

Key Features

• Precision Sine Wave Generation: Utilizes the high-speed processing power of the ESP32 to generate a high-resolution SPWM signal, ensuring a smooth 220V AC output with minimal total harmonic distortion (THD).

• Advanced Gate Control: Features dedicated MOSFET driver ICs controlled by the ESP32 to ensure rapid, efficient switching of the power stage while preventing cross-conduction and reducing thermal stress.

• Smart Protection & Monitoring: Leveraging the ESP32's built-in ADC and connectivity, the board supports real-time monitoring of battery voltage and load conditions, providing automated thermal and overload protection.

Key Design Features

• Standard 6-Pin FTDI Header: Features a dedicated pin row (DTR, RX, TX, VCC, CTS, GND) that allows for "plug-and-play" programming and serial monitoring while providing power directly from the FTDI adapter.

• Auto-Reset Circuitry: Includes a decoupling capacitor between the FTDI DTR pin and the ATmega328P Reset pin, enabling the seamless "auto-reset" function required for the Arduino IDE to upload code.

Key Design Features

• Integrated Power Module Support: Designed to house a compact AC-DC buck converter module (like the HLK-PM01), providing a safe, isolated 5V DC output directly from a 220V AC input with minimal external components.

• Built-in Safety Protection: Features an onboard MOV (Metal Oxide Varistor) for surge protection and a slow-blow fuse to protect your household wiring and the PCB from overcurrent or short-circuit faults.