🧪 RP2040 Pico W Lab

2025-06-24 rust · rp2040 · embedded · project

Experiments, Prototypes & Notes with the Raspberry Pi Pico W

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.)

⚙️ 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

🧩 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.

🔧 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)

📁 Repo Structure

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

📎 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.

📺 Demos