5v Voltage Divider circuit for an Arduino Uno with a 5v input voltage and a output pin with an output of 5v. This requires a 3.3v output line, you would connect a HC-06 Bluetooth module to the Arduino
connect the RX pin of the Arduino directly to the Tx pin on the HC-06,
and connect the Arduino TX pin to the middle of the 510ohm and the 1kohm resistors to get the output voltage at 3.3 volts.
The. middle of the 510 and 1k resistors connects to the HC-06 Rx pin.
