DC 3.3V 5V Touch 4 button switch module compatible with Arduino dev board 51 MCU

DC 3.3V 5V Touch 4 button Switch Module Compatible For Arduino dev board 51 MCU

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DC3.3V/5V 4Bit Button Touch Switch Module Compatible with 51 Microcontroller Kit

DC 3.3V 5V Touch 4 button switch module compatible with Arduino dev board 51 MCU

1Set Industrial FT232RL Chip UART Serial Module USB to TTL Converter STC 5V/3.3V