Arduino Mega Pin Configuration. If you want to close the circuit there are in total five ground pins available which are all connected. Arduino mega bluetoothmodule pin0 rx0 rx pin1 tx0 tx gnd gnd vcc vcc 5v 3 3v pin 34 serial communication through usb cable tx0 and rx0 to arduino terminal desktop is used just to cross verify.
The arduino mega has in total one 3 3v pin and four 5v pins which are able to provide a current up to 50 ma. Enter into configuration mode. Arduino mega bluetoothmodule pin0 rx0 rx pin1 tx0 tx gnd gnd vcc vcc 5v 3 3v pin 34 serial communication through usb cable tx0 and rx0 to arduino terminal desktop is used just to cross verify.
The max power can be drawn by this is 50ma.
The arduino pin connected to the write pin of the module. Arduino mega bluetoothmodule pin0 rx0 rx pin1 tx0 tx gnd gnd vcc vcc 5v 3 3v pin 34 serial communication through usb cable tx0 and rx0 to arduino terminal desktop is used just to cross verify. Finally before settling on the results from your aref pin always calibrate the readings against a known good. It can be attained from vin pin of the board or one more regulated voltage supply 5v otherwise usb cable whereas another voltage regulation can be offered by 3 3v0 pin.
