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ELEGOO 8 Channel DC 5V Relay Module With Optocoupler Compatible With Arduino UNO R3 MEGA 1280 DSP ARM PIC AVR STM32

Hiletgo 2Pcs DC 12V 2 Channel Relay Module With Isolated Optocoupler High And Low Level H/L Level Trigger Module Triggered By DC 12V

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NOYITO 2-Channel 5V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug And Play Suitable For PC Smart Controller

AEDIKO 10Pcs Relay Module DC 12V Relay Board 1 Channel With Optocoupler Isolation Support High Or Low Level

Hiletgo 12V 4 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger

I2C Extension Relay Board DO8 Efficient Solution For Expanding The GPIO Of ESP32 Via I2C Address