How To Connect 9v Battery To Arduino. This is how to correctly wire and connect a 9 Volt Battery to an Arduino Nano. After charging disconnect the micro USB and attach the Arduino Nanos USB port to the female USB located on the protection board.
Use one with leads to connect your battery directly to a breadboard or the VIN pin on the Arduino. The Nano is now ready to use. By connecting it to VIn your 9V will go from the battery though the VReg and then to your Arduino.
A 21mm barrel connector is soldered to a battery clip with the positive red wire connected to the centre of the barrel connector.
1 Arduino Nano Link. 2 Connect the black ground wire from the servo to one of the ground GND pins on your Arduino 3 Connect the signal normally white or yellow wire from the servo to pin 9 of your Arduino. After charging disconnect the micro USB and attach the Arduino Nanos USB port to the female USB located on the protection board. There are many way of doing it.
