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https://github.com/simonprickett/buttons-and-leds-with-raspberry-pi-pico
Using buttons and LEDs with MicroPython on the Raspberry Pi Pico
https://github.com/simonprickett/buttons-and-leds-with-raspberry-pi-pico
adafruit micropython raspberry-pi-pico
Last synced: 8 days ago
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Using buttons and LEDs with MicroPython on the Raspberry Pi Pico
- Host: GitHub
- URL: https://github.com/simonprickett/buttons-and-leds-with-raspberry-pi-pico
- Owner: simonprickett
- License: mit
- Created: 2021-03-06T17:11:53.000Z (almost 4 years ago)
- Default Branch: main
- Last Pushed: 2021-03-06T23:53:12.000Z (almost 4 years ago)
- Last Synced: 2024-10-29T15:49:29.215Z (about 2 months ago)
- Topics: adafruit, micropython, raspberry-pi-pico
- Language: Python
- Homepage: https://simonprickett.dev
- Size: 8.79 KB
- Stars: 3
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Buttons and LEDs with the Raspberry Pi Pico
This is a quick demonstration of how to use [MicroPython](http://micropython.org/) to read button presses and control LEDs with the [Raspberry Pi Pico](https://www.raspberrypi.org/products/raspberry-pi-pico/). Read more about it and see a wiring diagram [over on my website](https://simonprickett.dev/buttons-and-leds-with-micropython-for-pi-pico/).
## Hardware Used
* 1 x Raspberry Pi Pico ([buy in UK](https://shop.pimoroni.com/products/raspberry-pi-pico) | [buy in USA](https://www.adafruit.com/product/4864)).
* 1 x Adafruit 24mm LED arcade button green ([buy in UK](https://thepihut.com/products/mini-led-arcade-button-24mm-green) | [buy in USA](https://www.adafruit.com/product/3433)).
* 1 x Adafruit 24mm LED arcade button blue ([buy in UK](https://thepihut.com/products/mini-led-arcade-button-24mm-translucent-blue) | [buy in USA](https://www.adafruit.com/product/3432)).
* 4 x Adafruit arcade button quick connect wires ([buy in UK](https://thepihut.com/products/arcade-button-quick-connect-wire-pairs-0-11-10-pack) | [buy in USA](https://www.adafruit.com/product/1152)) - optional, just means a little less soldering but you could use the wire below for all connections. I used these for the button and LED connections on each button.
* Hook up wires, I like using single core ones (easier to poke through holes in circuit boards) but anything will do. I used these for the ground connections for each button. ([buy in UK](https://thepihut.com/products/hook-up-wire-spool-set-22awg-solid-core-6-x-25-ft) | [buy in USA](https://www.adafruit.com/product/1311)).
* Soldering iron ([buy in UK](https://shop.pimoroni.com/products/antex-xs25-soldering-iron-uk-plug) | [buy in USA](https://www.adafruit.com/product/3685)).
* * USB A to micro USB cable (for programming, then powering the finished project) ([buy in UK](https://shop.pimoroni.com/products/usb-a-to-microb-cable-black) | [buy in USA](https://www.adafruit.com/product/2185)).
* Cardboard box (you don't need an enclosure, but it keeps everything together! I also find plastic take out food containers work well for this stuff).
## Software Tools
I used [Thonny](https://thonny.org/) to edit the code and save it to the Pi Pico, because it has support for that. I am not a fan of Thonny, and will look at ways to use a better editor such as [VS Code](https://code.visualstudio.com/) with the Pico in future.
## Software
I wrote the software in MicroPython. This is a basic demo of how to detect a button press and toggle an LED in response to it.
I used a basic time delay debounce approach to the button press - waiting 500 milliseconds after a press was detected before allowing another one to register.
## Demonstration
Here's a GIF showing this project working:
