🧪 RP2040 Pico W Lab

Experiments, Prototypes & Notes with the Raspberry Pi Pico W

📌 Overview

This repository contains my projects, experiments, and notes using the Raspberry Pi Pico W, built on the RP2040 microcontroller with integrated Wi-Fi.
It serves as a playground for testing ideas, learning embedded concepts, and building small prototypes.

Goals:

• Explore RP2040 features with rp2040_hal
• Build Wi-Fi-enabled IoT devices
• Interface with peripherals (GPIO, I2C, SPI, UART, ADC, PWM)
• Experiment with power management, timers, interrupts
• Integrate with sensors and modules (temperature, motion, light, etc.)

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⚙️ Hardware Used

• Raspberry Pi Pico W
• Breadboard & jumper wires
• Sensors: DHT11, MPU6050, BH1750, HW-416A, HC-SR04, HW-504, etc
• Modules: OLED, WS2812 (Neopixels), relay, MOSFET driver
• Power: USB / battery / external supply

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🧩 Projects & Experiments

Project Name	Description	Status
blinky_led_by_button	External LED blink controlled by button	✅ Done
led_bar	Make LED flow on 10 LED bar graph	✅ Done
led_lamp	LED ON and LED OFF with button	✅ Done
led_analog	Breathing LED with PWM	✅ Done
led_bar_pwm	Make LED flow on 10 LED bar graph with PWM	✅ Done
led_rgb	Experiments with RGB LED	✅ Done
led_circle	Make LED circle with freenove	✅ Done
doorbell	Touch active buzzer	⏳ Planned

More to come.

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🔧 Tools & Tech Stack

• Languages: Rust
• IDEs: VSCode
• Libraries: embedded_hal, rp2040_hal, panic_halt, hal
• Protocols: GPIO, MQTT, UDP, TCP
• Flash storage & OTA update experiments (planned)

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📁 Repo Structure

/bin/
  └── blinky_external_led/
  └── blinky_led_by_button/
  └── led_analog/
  └── led_bar/
  └── led_lamp/
  └── ...
/docs/
  └── wiring_schematics/
  └── setup_notes/
README.md

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📎 Notes

This is an open lab space – not a polished library or framework. Things may be messy, experimental, or half-finished. If you're tinkering with the Pico W too, feel free to fork, comment, or share ideas.

cargo run --bin file_name