4.- Bluetooth module and HC-12 directly connected..
App sends information to the Bluetooth module, which passes it to the HC-12 that transmits it.
- App Inventor.
p9AAi_bluetooth_radiofrecuencia_3.aia (3.5 KB)
arduino_receiver.ino
[The same code from the previous post.]
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Note in the schematic that only the information goes from the TXD of the Bluetooth module to the RX of the HC-12. There is no return of information, that's why I have not connected the RXD-TX cable.
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The assembly of the schematic lost the connection after a few seconds, curiously it was fixed by connecting the cables to the protoboard as indicated in the following image, perhaps it is due to a capacitive coupling problem.
