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Wireless refers to the technology allowing the transfer of information between two points that are not physically connected.

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Arduino Bluetooth upload problem HC-05 v4.0

I upload code into arduino nano using a self-made PCB with bluetooth using this method. I was initially using Arduino Nano (chinese Clone, the one with CH340G) and Bluetooth module HC-05 (version 3.0) …
Kunal Kataria's user avatar