A modular collection of utility scripts, diagnostics, and test harnesses for Arduino-based devices. Designed for hardware validation, tactile feedback, and reproducible workflows across multiple boards and use cases.
Interactive GPIO tester for Arduino Nano:
- Red button cycles through testable GPIOs (D2–D13, A0–A5)
- Blue button toggles the current pin HIGH/LOW
- Serial output confirms each action and pin label
Analog input and PWM output tester:
- Cycles through A0–A5 using a button
- Reads analog voltage from a potentiometer
- Drives PWM brightness on D3 based on input
- Serial confirms pin changes only
Safe idle sketch for storage:
- Sets all digital pins to OUTPUT LOW
- Sets analog pins to INPUT
- No serial, blinking, or floating pins
Each sketch lives in its own folder and is self-contained. Open the .ino file in the Arduino IDE and upload to your board. Wiring diagrams and usage notes are available in each sketch’s dedicated README.md.
- Arduino Nano (ATmega328P) for current sketches
- USB connection for upload and serial
- Breadboard setup with buttons, LED, resistors, and potentiometer
This repo is intended for general-purpose Arduino utilities. Specific projects (e.g., sensor integrations, display drivers, robotics) will live in their own repositories. Planned additions include:
- I2C scanner and diagnostics
- SPI display test harnesses
- EEPROM read/write utilities
- Watchdog timer test scripts
- Cross-board compatibility notes
MIT License — feel free to fork, adapt, and contribute.
Built for clarity, modularity, and tactile diagnostics.