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kenakofer / pi-bowl

Python program for running a scholars bowl (quiz bowl) buzzer hub on a Raspberry Pi, managing timing, scoring, lockout, and player recognition.
GNU General Public License v2.0
9 stars 3 forks source link

buzzer GPIO setup help? #2

Closed VeggieVampire closed 8 years ago

VeggieVampire commented 9 years ago

Could you make a circuit diagram for the buzzers?

derekpock commented 9 years ago

Kenan, I could attempt to do this, but you have a better understanding of it.

If he doesn't respond in a few days, I'll see what I can do.

kenakofer commented 9 years ago

It's very simple. Each buzzer is a button that connects a single gpio pin to ground. The code sets up the gpio pins to detect when a button was pressed. Just ask if you need more info.

On Thursday, October 22, 2015, Derek Pockrandt notifications@github.com wrote:

Kenan, I could attempt to do this, but you have a better understanding of it.

If he doesn't respond in a few days, I'll see what I can do.

— Reply to this email directly or view it on GitHub https://github.com/kenanbit/pi-bowl/issues/2#issuecomment-150127818.

derekpock commented 9 years ago

He might need to know the specific GPIO pins, which ones you used on what model of the Pi.

VeggieVampire commented 8 years ago

I have grounded every pin listed below made sure the Open buzzer is checked but still unable to generate an active buzzer click.. Any help would greatly appreciated. Note I have tried GPIO13(pin33) and pin 13 which is GPIO027.. I am using a Pi 2 for the hardware. pins=[13, 15, 16, 18, 22, 3, 5, 7, 11, 12]

Also I checked with a LED to ground for if power was getting from any of the none powered GPIO pins and no power was being sent out so not sure how it would get a signal to show if it was open or closed.

kenakofer commented 8 years ago

Our builds used the Pi and model B, which has fewer and different pins than model 2 if I remember correctly. With that in mind, you should change the array of pins in your code to match the number of each gpio pin you want to use on the Pi 2. I want to stress that I don't own a Pi 2 and don't know enough about them to confirm that other aspects of the program will work as planned. Try grounding just one of the pins at a time. Does the code run without errors?

On Thursday, October 22, 2015, VeggieVampire notifications@github.com wrote:

I have grounded every pin listed below made sure the Open buzzer is checked but still unable to generate an active buzzer click.. Any help would greatly appreciated. Note I have tried GPIO13(pin33) and pin 13 which is GPIO027.. I am using a Pi 2 for the hardware. pins=[13, 15, 16, 18, 22, 3, 5, 7, 11, 12]

— Reply to this email directly or view it on GitHub https://github.com/kenanbit/pi-bowl/issues/2#issuecomment-150410032.

VeggieVampire commented 8 years ago

I found the problem you must force the constant for virtualized to be False. on line 9. and all starts to work. :)

virtualized=False

VeggieVampire commented 8 years ago

I use pins=[7, 11, 12, 13, 15, 16, 18, 22, 29, 31] for a pi 2

derekpock commented 8 years ago

Fantastic! Glad it works! Be sure to ask if you have any more questions, and feel free to improve the software as well! I'm no longer in a position to actively use this, so any suggestions is appreciated and welcome.