DIY Arduino Quiz Buzzer System

This is a video tutorial explaining how to create an #arduino multiplayer interactive quiz buzzer system, as used in TV gameshows, pub quizzes, etc.

[ronaldmitchell]

Many, many thanks for uploading the schematics for the project. As a newcomer to electronics at the age of 77 I’d managed to work out the bulk of the schematics from the code but hadn’t yet worked out the wiring for the MP3 player.
I’m just waiting for final component from Amazon and I should be ready to go. My next project will be to build a wireless version which i might push up to 6 players.

[mfx]

I made one for a children's entertainer many years ago before Arduinos, it used either a PIC or AVR programmed in assembly, it had an early audio record/playback chip so each contestant could record their own name or sound. I slight overkill thing was it could deal with dead heats, all buttons were diode OR'd to an interrupt pin which if triggered read the whole port at the same time so a dead heat/draw could be detected.

[stephenjmatthews]

Love it! What great timing. Just last week, I was using one of these with my year 9 and 10 science classes. I built it around 20 years ago, all analog based around 4 thyristors as triggers, with 4 LED's and a buzzer. The tactile buttons are mounted on the top of clear film canisters (if anyone can remember them) each with an LED inside. For connecting to the control unit I used 5 pin din plugs/sockets. I was thinking just last week I need to make larger, more visual buttons, with better sounds perhaps some automatic scoring. The arcade buttons are a great idea. Thank you! I did think of wireless, but I'm not interested in having to worry about four additional sets of batteries.

[devonglide]

Your code works great! I don't have a mp3 player, so i had to take out audio stuff. The only oddity I'm experiencing is that it always registers a player buzz as two clicks.

Player 1 buzzed in
Player 1 buzzed in
CORRECT. Reactivating all players
Player 1 2 3 4
Score 0 0 1 0
Reactivating all players
Player 2 buzzed in
Player 2 buzzed in

Thanks so much, my students are going to love it!

[NerdiestPerson]

One pretty easy thing you can do to help with storage is use 3.5mm panel mount stereo audio jacks on the buzzers and control box, then connect them via aux cables. That way you can store them without the cabling getting in the way. Bonus advantage of the cable probably just coming out instead of breaking if a buzzer is dropped or pulled by an overexcited child.

Ethernet jacks/cables should work as well, though most of the wires won't be used. The biggest advantage being that it's super-easy to make a cable in any length you want for different situations (e.g. shorter cables for the dinner table, longer for a classroom scenario).

[napets]

Nice! I would like to use this for teaching in school. Is there a complete list for all parts needed for amazon or such? So I can easily order all needed parts together? Thanks in advance.

[shaundracook]

Do you have a schematic for this build?

[ImperialLightandMagic]

Love it, would absolutely LOVE a wireless button version, perhaps using ESP32 wifi and a battery in each button box.

[alanpickin]

I am new to building and programming the Arduino and I am very impressed with the projects that you run through on your site. I would very much like to build this quiz project but being inexperianced I do not have the skill to build and connect the hardware. Is there a circuit diagram anywhere for the build?

[Alexminecaft]

Hi sir i am from India i want to know . About Wirering of the circuit please tell me

[Burning_Time]

Hello, good day! may i ask if you have schematics for your system? I would like to try to build this myself for Q&A games this upcoming xmas parties. Thanks

[queen_of_]

Too complicated for me, 😅 where can we buy these?

[paulmarchant]

Brilliant video! Do you have the circuit wiring diagram? Thanks

[jstodd]

Fantastic build! I have (hopefully) a quick question: I built the same game shown in your video, following your wiring diagram and code (thanks for sharing!!). The system works awesome, but every now and then, randomly, the correct answer button will trigger the incorrect answer code, and visa versa with the incorrect button, triggering the correct answer code. This happens randomly with each maybe 1 out of 30 presses. Any idea what would be causing this? I checked for stray wires and poor connections with no issues uncovered. And it only happens as the buttons are pressed, not randomly as though it’s getting a “phantom” input. Thanks for your help!

[martinryan]

Hi, am loving this and would like to try, although it's been 40 years since I did any coding and that was BASIC. If I make this set up it would be for the charity quiznight I do each christmas so my question is can I get it to run 6 buzzers off the nano ESP32 board?

[OneManManyPlans]

Hi Alistair, am I seeing correctly that the mp3 component is set to one-line mode? Looking forward to building this, great vid!

[Zonuna_Chawngthu]

Hi, I have been doing a Live TV production with a lot of Quiz shows, I am still using an analog Quiz lockout machine made by my cousin back in 2008, Now that I saw your video, I really like to make them, I have download your github file, But will it be possible if you can share me a wiring diagram of the unit ?

[mathsolarif]

I am from India. Can you make one for me? It should contain for 4 to 6 players as per needed. How much cost will come?

[mamadouthiawsarr]

Hi. I’m from a Senegalese school named PRYTANEE. It’s located in Africa. We are looking forward to developing our Science Club and projects like this matter as the first footsteps to a child that aspires to become an ingénieur or developper. The project is amazing, great work. We wanted to do something like this and we wonder if it doesn’t bother you to help us with the wiring. Your help would be greatly appreciated to extent that African students want to integrate this techno science to their learning.

[Ernzt]

This is a great project! Thanks for the detailed explanation