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Neo-7n GPS module not sending serial data through rx tx pins - Networking, Protocols, and Devices - Arduino Forum
The Arduino's TX and RX pins are used for UART communication. From The Components of an Arduino Uno PCB - https://www.circuitbasics.com/... | Instagram
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relay - How should I connect the RX and TX pins of an Arduino to a Bluetooth module? - Electrical Engineering Stack Exchange
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