Gym Buddy

🏋️GymBuddy: The Ultimate Gym Timer

Are you spending more time scrolling through your phone than lifting weights at the gym? That was me. I’d sit down for a quick break between sets, grab my phone, and suddenly realize I’d taken a 5-minute break instead of 60 seconds. It was distracting, unproductive, and ultimately frustrating. 💡

That’s why I created GymBuddy: a simple, distraction-free device to keep me focused during workouts. It’s a compact gym timer that reminds you when it’s time to get back to work.

💪 How It Works

• Distraction-Free Timer: Displays elapsed workout time in the format HH:MM, so you can track your session without needing your phone.
• Break Timer: Press the button to start a 60-second break timer.
• Buzzer Reminder: A buzzer sounds when the 60 seconds are up, letting you know it’s time to get back to your set.
• Smart Button Control: Press the button again to stop the break timer and silence the buzzer.

🔢 Code & Further Documentation

Visit the GitHub repository: https://github.com/oliverruoff/GymBuddy

📦 Required Components

Component	Description	Usage
I2C OLED Display (128x32)	Display for timers (compatible with 3.3V-5V)	Shows the elapsed workout and break timer.
RP2040-Zero Microcontroller	Microcontroller based on Raspberry Pi RP2040	The brain of the GymBuddy.
12mm Push Button	Button to start/stop the break timer	Controls the break timer and silences the buzzer.
3V Buzzer Module	Buzzer for alerts	Sounds when the break timer reaches 60 seconds.
18650 Battery	Rechargeable battery for power	Provides portable, rechargeable power.
USB-C 18650 Charger Module	Power supply module with battery support	Charges the battery and powers the device.
Toggle Switch	On/Off switch for the device	Powers the GymBuddy on and off.
M3.5 Self-Tapping Screws	Screws for securing components	Keeps all parts securely in place.
Cables	For wiring connections	Connects the components.

🖨️ 3D Printing the GymBuddy Case

The design is compact, functional, and easy to print. The case features:

• Slots for all components that hold them in place, including precise cutouts for the USB-C slots (ensure you use the exact components mentioned in the GitHub documentation).

Print Settings:

• Material: PLA or PETG for durability.
• Layer Height: 0.2 mm.
• Infill: 15% gyroid (higher infill recommended for added strength).
• Supports: No supports required.

🤔 Why GymBuddy?

I wanted something that worked for me, not against me. I tried using my phone, but it was too distracting. With GymBuddy, I know exactly when my breaks are over without the temptation of endless notifications. Now, my workouts are more focused, efficient, and productive.

🔌 Wiring & Assembly

Visit the GitHub repository: https://github.com/oliverruoff/GymBuddy
(Here you can also see a wiring diagram.)

🏋️Focus on Your Fitness

GymBuddy is designed to keep you on track. Whether you're a beginner trying to stay consistent or an experienced lifter looking to optimize your rest periods, GymBuddy has your back. No distractions, no excuses—just results.

🔗 Download the files and get started today!

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