Uploaded September 2025 | Updated September 2026, 1 week ago
Speed up game night with a DIY turn timer—now with a 16×2 I²C LCD! The LCD shows the active player and seconds remaining, while the LEDs give green/yellow/red status and the buzzer ends the turn. If you missed Part 1 (LEDs + button + buzzer), watch it here: youtu.be/0G3-ISume2o
Prerequisite Raspberry Pi Setup: youtu.be/tftyvWMs-1w
GitHub Code: github.com/carolinedunn/game-night-buzzer
STL Files (3D-printed cases): thingiverse.com/thing:7136384
#RaspberryPi #RaspberryPiProjects #DIYElectronics #LCD #I2C #boardgamesaddict #GameNight
In this episode, we wire a 16×2 I²C LCD to the Raspberry Pi, enable I²C, and update the code so “Player 1/2” and the countdown render on-screen—while keeping the LEDs and end-of-turn beep from Episode 1.
Materials (affiliate links)
LCD 16×2 (I²C backpack): amzn.to/4gc2VBj
LEDs: amzn.to/45OMQxZ
330Ω resistors: amzn.to/45MSTTO
LEDs w/ prewired resistors: amzn.to/464NMgF
Piezo Buzzer: amzn.to/4p7HfKP
Button: amzn.to/4n9EhDK
Jumper wires: amzn.to/4mXJ9w3
Raspberry Pi 4: amzn.to/4mXJ9w3
Breadboards: amzn.to/4nehtme
✅ A Woman’s Guide to Winning in Tech (my book) → amzn.to/3YxHVO7
Affiliate Disclosure: As an Amazon Associate, I earn from qualifying purchases. Using these links helps support my channel at no extra cost to you—thank you!
⏱ TIMESTAMPS / CHAPTERS
0:00 – Demo
0:08 - Intro
0:57 – LCD demo
1:34 – Materials
2:38 - GitClone code
3:56 - LED review
4:34 - Buzzer review
4:57 - Button review
5:31 - Wiring the LCD
6:00 – Enable I²C on Raspberry Pi
6:39 - Test the LCD
7:03 - Optional - Clear the LCD
7:52 - Live test: player switch & countdown
8:33 – 3D-printed case options
9:00 – Wrap & what’s next
🎁 SEPTEMBER 2025 GIVEAWAY — ELIGIBLE VIDEO
I’m giving away ONE Google AIY Voice Kit v1 this month.
Note: The Raspberry Pi 3 is NOT included—you’ll need your own Pi.
How to enter (2 steps):
Comment on THIS video: tell me which board/card game your friends or family take the longest on, or a Raspberry Pi project you’d like to see on this channel.
Submit the entry form linked below.
Window & Draw:
• Entries open Sept 1–30, 2025 (ET).
• I’ll go LIVE to randomly draw and announce the winner on Thu, Oct 9, 2025 at 12:00 PM EST.
Eligibility & Notes:
• US only — I cover standard shipping within the United States.
• One entry per person per month. No Shorts. Entries do not carry over to future months.
• If you win once, you’re not eligible to win again in later months.
This giveaway is sponsored by me, Caroline Dunn, and is not sponsored, endorsed, or administered by YouTube or Google.
Contest Rules: carolinedunn.org/game-night-timer-aiy-voice-kit-v1-giveaway
Entry Form: https://forms.gle/S1XsVNmWa49zMV859
Speed up game night with a DIY turn timer—now with a 16×2 I²C LCD! The LCD shows the active player and seconds remaining, while the LEDs give green/yellow/red status and the buzzer ends the turn. If you missed Part 1 (LEDs + button + buzzer), watch it here: youtu.be/0G3-ISume2o
Prerequisite Raspberry Pi Setup: youtu.be/tftyvWMs-1w
GitHub Code: github.com/carolinedunn/game-night-buzzer
STL Files (3D-printed cases): thingiverse.com/thing:7136384
#RaspberryPi #RaspberryPiProjects #DIYElectronics #LCD #I2C #boardgamesaddict #GameNight
In this episode, we wire a 16×2 I²C LCD to the Raspberry Pi, enable I²C, and update the code so “Player 1/2” and the countdown render on-screen—while keeping the LEDs and end-of-turn beep from Episode 1.
Materials (affiliate links)
LCD 16×2 (I²C backpack): amzn.to/4gc2VBj
LEDs: amzn.to/45OMQxZ
330Ω resistors: amzn.to/45MSTTO
LEDs w/ prewired resistors: amzn.to/464NMgF
Piezo Buzzer: amzn.to/4p7HfKP
Button: amzn.to/4n9EhDK
Jumper wires: amzn.to/4mXJ9w3
Raspberry Pi 4: amzn.to/4mXJ9w3
Breadboards: amzn.to/4nehtme
✅ A Woman’s Guide to Winning in Tech (my book) → amzn.to/3YxHVO7
Affiliate Disclosure: As an Amazon Associate, I earn from qualifying purchases. Using these links helps support my channel at no extra cost to you—thank you!
⏱ TIMESTAMPS / CHAPTERS
0:00 – Demo
0:08 - Intro
0:57 – LCD demo
1:34 – Materials
2:38 - GitClone code
3:56 - LED review
4:34 - Buzzer review
4:57 - Button review
5:31 - Wiring the LCD
6:00 – Enable I²C on Raspberry Pi
6:39 - Test the LCD
7:03 - Optional - Clear the LCD
7:52 - Live test: player switch & countdown
8:33 – 3D-printed case options
9:00 – Wrap & what’s next
🎁 SEPTEMBER 2025 GIVEAWAY — ELIGIBLE VIDEO
I’m giving away ONE Google AIY Voice Kit v1 this month.
Note: The Raspberry Pi 3 is NOT included—you’ll need your own Pi.
How to enter (2 steps):
Comment on THIS video: tell me which board/card game your friends or family take the longest on, or a Raspberry Pi project you’d like to see on this channel.
Submit the entry form linked below.
Window & Draw:
• Entries open Sept 1–30, 2025 (ET).
• I’ll go LIVE to randomly draw and announce the winner on Thu, Oct 9, 2025 at 12:00 PM EST.
Eligibility & Notes:
• US only — I cover standard shipping within the United States.
• One entry per person per month. No Shorts. Entries do not carry over to future months.
• If you win once, you’re not eligible to win again in later months.
This giveaway is sponsored by me, Caroline Dunn, and is not sponsored, endorsed, or administered by YouTube or Google.
Contest Rules: carolinedunn.org/game-night-timer-aiy-voice-kit-v1-giveaway
Entry Form: https://forms.gle/S1XsVNmWa49zMV859
