TV Volume Loudness Guard using Arduino

Step 2: WIRING THE TV LOUDNESS GUARD

SOUND SENSOR

• GND pin ---> Arduino GND pin
• VCC pin ---> Arduino 5V pin
• SIG pin ---> Arduino A0 pin

IR TRANSMITTER LED

• Cathode ---> Arduino GND
• Anode ---> 1K Ohms ---> Arduino pin 3 (PWM)

NOTE: I forgot to add the 1K ohms resistor to my prototype but it's wise to include it. 

IR 38KHZ RECEIVER (FACING YOU)

• Right Pin --->  Arduino 5V pin
• Middle Pin ---> Arduino GND pin
• Left Pin ---> Arduino 11 pin (PWM)