

PushBuzz
Qwizzzzz Buzzzzz Weeeeezzzzzzz
- Size
- 38 × 47 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 22
- Pads
- 58
- Tracks, vias
- 96, 9
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 30 Mar 2022
- Updated
- 25 Nov 2024
Overview
PushBuzz is an open-source printed circuit board by goireu, from the goireu/QuizzBuzz repository on GitHub. It is a 2-layer board of 38 × 47 mm with 15 parts on 22 nets, routed with 96 tracks and 9 vias.
It is built around the BSH105 and DMP31D0U. Its parts include 5 transistors, 4 resistors, 2 connectors and 1 switch. It belongs with the nRF52 and nRF5x boards of this library.
Main components
2README
README.mdQuizzBuzz
Qwizzzzz Buzzzzz Weeeeezzzzzzz
This is a project to turn widespread "got talent" like quiz buzzers and an iOS-based device into a fun wireless quiz game.
Requirements:
- An iOS device (iPhone/iPad) with iOS 15+
- Spotify app installed on the device (a paid subscription is strongly recommended to avoid ads and allow for skipping songs)
- Some buzzers
- XCode for iOS 15+ for the Quizzer app
- KiCad for the PCB files
- nRF Connect SDK 1.9.1+ for the firmware
Buzzer HowTo
Press the Buzzer for 3 to power it up, indicator will flash quickly while it isn't connected to a QuizzBuzz app. When connection establishes the indicator will switch off.
After 30 seconds unconnected, the Buzzer will automatically power off. After 30 minutes connected without buzzing, the Buzzer will also automatically power off.
Game HowTo
When the game starts, everyone is allowed to buzz while the music is playing. The fastest buzzing team will have its buzzer blinking (much slower than when unconnected) and can try a guess. If the guess is incorrect, and game is configured not to allow multiple answers, the indicator will stay lit and you can't buzz until next song. Upon moving to next song, indicators will switch off and everyone can play again.
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 47k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4 |
| 4 | BSH105 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2, Q3, Q4 |
| 1 | 12x12x? SMD Pushbutton | PushBuzzFootprints:12x12 Pushbutton | SW1 |
| 1 | 282834-6 | TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-6_1x06_P2.54mm_Horizontal | J1 |
| 1 | DMP31D0U | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q5 |
| 1 | nRF52840 Dongle | PushBuzzFootprints:nRF52840-Dongle | J2 |
The 12 most common of 15 parts.
Questions
How big is the PushBuzz PCB?
It measures 38 × 47 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PushBuzz use?
15 parts, built around the BSH105 and DMP31D0U. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PushBuzz KiCad files?
From the goireu/QuizzBuzz repository on GitHub, at the commit this page was made from: the board is PushBuzz/PushBuzz.kicad_pcb and its schematic PushBuzz/PushBuzz.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PushBuzz design in my own project?
Its repository states no licence, so its author keeps all rights: ask goireu before reusing the design.
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