Schematic view of an Arduino connected to three force sensing resistors (FSR) and a speaker. Each of the three FSRs have one of their respective legs connected to +5 volts. Each of the other legs connect to one leg of a 10-kilohm resistor and simultaneously connect to one of the Arduino’s analog input pins. In this case the pin connections are A0, A1, and A2. Each of the respective 10-kilohm resistors then connect to ground. The red positive wire of the speaker is connected to digital pin 8 of the Arduino. The black ground wire of the speaker is connected to one leg of a 100 ohm resistor. The other leg of the 100-ohm resistor connects to ground.