What if we connect directly the 3.3V pin of Arduino board to the HC-06 module , instead of connecting the voltage-divider to get the desired 3.3V ? Will it work ?
At 8:14 , we should connect back "TX-TX" and "RX-RX" while sending the AT commands to the HC-06 module. Note : We should always send an empty code (the default code of a new project) to the Arduino before sending the AT commands to the HC-06 module. While uploading any code to the Arduino, we should always disconnect TX & RX pin of HC-06 from the Arduino board. Point to be noted : * For sending AT commands, Connect--------"TX-TX" & "RX-RX" * During working of the circuit, Connect--------"TX-RX" &. "RX-TX" * During uploading the code, Disconnect----------"TX" & "RX"
Yeah the HC-05 is a bit of a different animal. Other than being and acting a little different, I think the hardest thing is to make the voltage divider (in video at 2:40). Best of luck.