Looking for a cheap alternative for a GAME SHOW BUZZER LOCKOUT SYSTEM. In this project we use construction helmets for the fun factor instead of a box type console and create a very affordable game show buzzer system. The total cost will be about $50-$70 depending on what materials you find around your house. Check out the demonstration video.

Comment if you have any questions or if I missed anything.

Step 1: Materials/Tools/Cost

Picture of Materials/Tools/Cost
Arduino Uno Board.jpg


  • 3 Construction Helmet
  • 3 Momentary Switches
  • 3 Flashlights (or just use regular LEDs)
  • 3 AAA batteries (came with flashlights)
  • 4 Phone jacks (pulled them out from old phones)
  • 4 Bolts & 4 Nuts
  • 1 Arduino Uno Board
  • Lots of Wires (I took apart and used left of ethernet cables)
  • 1 ON/OFF Switch (any on/off switch will do)
  • 1 Buzzer (RadioShack 6VDC Mini Buzzer)


  • Drill
  • 1/4" & 1/2" drill bits
  • Marker
  • Sharp Knife
  • Dremel
  • Cut off bit for dremel
  • Sanding bit for dremel
  • Hot Glue
  • Soldering Iron and Solder
  • Electric Tape


  • 3 Construction Helmets @ $7.88 ea (ebay.com) = $23.64
  • 3 Momentary Switch @ $5.49 for 5 (ebay.com) = $3.29
  • 3 Flashlights & AAA batteries (HarborFrieght) $1 ea = $3
  • 4 Phone jacks $3.16/old phone (Goodwill x 2) = $6.32
  • 4 Bolts & 4 Nuts = FREE (had some)
  • 1 Arduino Uno Board (amazon.com) = $27.97
  • Wires = FREE (use ethernet cables or any other cable)
  • 1 ON/OFF Switch = FREE (had some, can take it off an old device too)
  • 1 Buzzer (Radio Shack) = $3.99

    My Total Cost: $68.21
moppyking7 months ago

hey... could someone tell me how to mke this for 8 people?

Soren_777 months ago

The error in the code was a } was needed on the line below the last entry.


hrttele (author)  Soren_777 months ago

I'm glad you were able to figure it out. Did you build one? Post a picture.

Soren_777 months ago

Help please I am receiving the following error when I copy and paste the code from above.

sketch_jan22a:38: error: expected `}' at end of input

Why do I get this error and how do I solve it.

mawoniyi1 year ago

the code that i was to copy and paste in ardruino has errors and don't know ho to fix it. expected closing bracket missing at end of function.

hrttele (author)  mawoniyi1 year ago

I apologize for the delay, haven't been on here for awhile. Somewhere in the formatting I might of made a mistake. Here is a direct copy and past from the sketch program. Just copy and paste it and it should work. Let me know how it goes.