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3pcs XH-M203 AC/DC 12V 10A Automatic Water Level Controller Water Level Switch Liquid Level Pump Control Module

3pcs OV5647 Fisheye Wide-angle Night Vision Camera 500W Pixel 1080P Module Support For Raspberry PI 4B/3B+

3pcs CJMCU-1802 PCM1802 24Bit 105dB Audio Stereo A/D Converter ADC Decoder Amplifier Module

3pcs TTL to RS485 RS485 to TTL Bilateral Module UART Port Serial Converter Module 3.3/5V Power Signal

20W HIFI Mono Channel LM1875T Stereo Audio Amplifier Board Module DIY Kit