Ultrasonic Batgoggles

Step 6 Prepare buzzer and sensor wires

The ultrasonic sensor and buzzer need long wires to run from the goggles to the electronics. The ultrasonic sensor requires 4 wires(5v, ground, echo, trigger) and the buzzer requires two wires (digital output from controller, ground). With some planning you could use a 5 wire ribbon cable, if you have one and share the ground connection between the buzzer and the sensor. I only had a 4 wire ribbon so I used that for the ultrasonic sensor and used a two wire cable for the buzzer. Since the buzzer has two connectors i soldered a row of female headers to the two wires at the correct spacing, this way I can easily remove the piezo buzzer if necessary. The sensor has some solder holes to solder to which you should go head and use. Make sure to use the correct side, the holes on the other side are for programming the sensor and won't work!