Wireless Arduino Game Show Buzzer (With Code)
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- Опубликовано: 27 сен 2024
- In this video I hack apart some household 433mhz wall switches to make a wireless gameshow buzzers. Note that you can pretty much hack anything with 433mhz and a button do this, I just had a bunch of these left over from another project.
The code:
The code is meant to be simple and easy to understand.
I avoid using a lot of techniques noobs would have a hard time understanding.
github.com/mud...
Important info below if you want to simplify this build.
Key Components:
Project Boxes: amzn.to/2M0OkLn
433 Receivers: www.aliexpress...
Keychain - www.aliexpress...
Switches - Please note that you can use all keychains instead of these switches. If you use the 1 button keychain, you don't even need to build the project boxes at all.
www.aliexpress...
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I’ve always wanted to make something like this! Thank you!
I tried that with 433 MHz radio-controlled sockets and a relay control. But if the players pressed at the same time, then probably the radio signals blocked each other. None of all players' lights came on.
Hi this is a great video, I want to build one, where can you buy the parts? Thanks
Wow nice vid!
Great job 😊👍👍👍
Awesome project. I built one with 12 player units. Been using it for the last 4 months without problems. I would like to add a function but don’t know how. Is there a way to add an extra buzzer after 5 seconds after the player buzzes in to answer. Like in family feud. Some of the players push the buzzer too fast then don’t know the answer right away and other players get upset.
So are you saying that the lockout should automatically unlock after 5 seconds? I think that would be doable. I am out of town at the moment but I would be happy to help and early December
I am unable to open the links to AliExpress, plz provide with an alternate link. I want to make this project
Sorry. That's why I stopped making them. They changed them all the time. You basically need any kind of 433 megahertz wall switch
This is a very interesting project. But I cannot understand that only a single receiver can receive the four buttons from the player and the four buttons from the key remote control and transmit them to the Arduino via just only one wire.
In my hardware circuit with relay I have 4 receivers but somehow they block each other when several buttons are pressed almost simultaneously.
I would like to send you a picture of my electrical plan, but I don't know how to add a picture here.
Thank you.
You're absolutely right that 433mhz signals can cancel each other out and that's an issue. I make the kids tap the buttons. Instead of push and hold. It only takes being first by a thousandth of a second to get in there and "win." Although I am going to make another version of this that uses a different technology where all the signals can be received at once and it will give you the order.
@@AnotherMaker hi, any progress or notes regarding this new strategy that you can share? I'm working on a similar project and I'm amazed there isn't any kind of kit out there already being made by Adafruit or someone like that!
Awesome system! I’m really bad with computer code and electronics in general, but I think this would be awesome for my Jeopardy! style games. Would I be able to buy one from you or something of the sort?
I would love to but I have just been out of time to do that kind of work. I really do appreciate it. If you build it and get stuck I'd be happy to help
@@AnotherMaker Alright, no problem, I understand. Life gets busy😂. I just ordered the parts and I’ll definitely ask you if I get stuck. Thanks!
@@evanbrown2027 if you figured it out, I'd pay you also.
This is a fantastic project and has inspired me to try and do something similar but I'm very new to this kind of thing. If I wanted to expand this to 8 players and use the keychains as a base for the buzzers, do they all transmit a unique signal or is there a limit to how many I can use?
They all transmit a unique signal. I never received 2 that were the same, but you can also buy programmable ones.
@@AnotherMaker Thank you so much for the information. I guess I'll start gathering parts to have a go at this.
@@mydream7015 Good luck!
@@AnotherMaker HI. I've managed to make great progress on my project thanks to your example code and had one final thing I couldn't quite figure out through research. My project is running on a pro micro (5v) and I have 4xAA battery holder which I will be using to power it. If the battery is connected while the USB is plugged in, can it do any damage to the batteries? will the Arduino automatically draw power from the USB over the batteries? Thanks again for your help.
Well done ;)
Thank you!
Hi thanks for your idea of using 433. I used your code and build my version of this project. Into buttons I give keychains - so and now a problem. If i use it one by one its ok all works fine. But when I hit two buttons simultaneously receiver dont take any data. When I have uncommented part about received bytes, there is no activity until I release one of buttons. Any idea what is wrong? Thanks
There's just no way you can push and hold 433, they have to push and let go.
@@AnotherMaker drive.google.com/file/d/1310a2pRNw2f6GXK_T2Hp7RJGezX87Y4I/view?usp=sharing - here is example - one by one is fine, if I hold a button it sending more of same signals, if I hit both it do nothing or as on the end of video it send absolutly weird values.
you did not show sir how exactly did you assemble that main box controller. anyway overall i like it
Hmm! I will have to go back and watch the video to see what I missed. If you have any questions about making one, I'd be happy to help. Are you talking about assembling the wooden box itself?
@@AnotherMaker yes sir and how did you assemble the wiring too coz i have no basic knowledge on electronics
@@aenhsbestshots3505 So the 4 leds each have one leg to ground and the other to pins 3,4,5,6 with a 220-330 ohm resistor between the led and the pin. The buzzer has one pin to ground and the other to pin 7. The 433mhz receiver has one pin to 5v, 1 to ground, and the data pin to pin 2. That's it for the wiring. I laser cut the box, very similar to how I did this. ruclips.net/video/vmq_0J9QWPc/видео.html
Thank you very much for the video, but I have a question. Is it possible to add two more colors? What would have to change in the code?
I am very noob at arduino. Thank you.
Yeah. So a simple way to do it would be to search through my code and look for the word yellow. So when you see...
int yellow = 5;
Just add
int purple = 8;
That's the next open pin. Just go all the way through the code and duplicate any other chunks of code and make one for purple or orange or whatever other colors you want. The code is in the description. I made it super repetitive on purpose so you can track what I'm doing.
Great. A very professionally made unit
Thank you!
@@AnotherMaker hey, a few questions. I'm completely new to Arduino and my dad wants me to do this for him. So, could you tell me what all I need to know to get started with this. I have programming experience and have experience working with computers so I'll figure the stuff out if you could tell me what all I need to know.
Then, what's the white thing that you cannibalise to get the black transmitter box working?
Do we need 1 receiver and 4 transmitters (including the master remote) or do we need one reciever for each transmitter?
love it
Thanks! My first video was about gameshow presenter!
The aliexpress store seems to not carry them anymore?
Is this what you are looking for?
a.aliexpress.com/_stE6p1
@@AnotherMaker Thank you!!!!!
@@cyberphox not a problem!
@@AnotherMaker next question! :) Is there a way to code these wireless buzzers to respond to a keyboard press instead of a lockout system? Say like build 10 of them to respond to keyboard 0-9?
@@cyberphox what do you mean by respond by?
Is there any way to use a ir receiver and remote for the main controller? If so where would I power the ir receiver on an uno with everything else the same?
So I made a video on doing an ir receiver. ruclips.net/video/McYDX7_Tqy0/видео.html You could do that and then give each person a little ir keychain remote or a universal remote. Or you could use an arduino for each of the buttons and make it an ir blaster.
The main complication im running into now is that irremote seems to be using the same timer as what im guessing is the buzzer sounds.