Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/alankrantas/raspberrypi-pico-micropython-cookbook
MicroPython drivers and experiments on Raspberry Pi Pico
https://github.com/alankrantas/raspberrypi-pico-micropython-cookbook
micropython python raspberrypipico
Last synced: 3 months ago
JSON representation
MicroPython drivers and experiments on Raspberry Pi Pico
- Host: GitHub
- URL: https://github.com/alankrantas/raspberrypi-pico-micropython-cookbook
- Owner: alankrantas
- License: mit
- Created: 2021-02-01T02:20:33.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2023-10-11T05:47:20.000Z (over 1 year ago)
- Last Synced: 2023-10-11T09:58:50.488Z (over 1 year ago)
- Topics: micropython, python, raspberrypipico
- Language: Python
- Homepage:
- Size: 261 KB
- Stars: 8
- Watchers: 2
- Forks: 4
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Raspberrypi Pico MicroPython Cookbook
Updating...
## Blinky
```python
from machine import Pin
import time
led = Pin(25, Pin.OUT)
while True:
led.toggle()
time.sleep(0.5)
```
or
```python
from machine import Pin, Timer
led = Pin(25, Pin.OUT)
blink = lambda _: led.toggle()
Timer().init(mode=Timer.PERIODIC, period=500, callback=blink)
```
or
```python
from machine import Pin
import uasyncio
async def blink(led):
while True:
led.toggle()
await uasyncio.sleep_ms(500)
uasyncio.run(blink(Pin(25, Pin.OUT)))
```
or
```python
from machine import Pin
import rp2
@rp2.asm_pio(set_init=rp2.PIO.OUT_LOW)
def blink():
set(pins, 1)
set(x, 31) [6]
label('delay_high')
nop() [29]
jmp(x_dec, 'delay_high')
set(pins, 0)
set(x, 31) [6]
label('delay_low')
nop() [29]
jmp(x_dec, 'delay_low')
sm = rp2.StateMachine(0, blink, freq=2000, set_base=Pin(25))
sm.active(1)
```
## Overclocking
The Pico has default frequency of 125 MHz but can be overclocked as high as **270 MHz** (which uses higher CPU voltage and might be less stable):
```python
from machine import freq
freq(270000000)
```
Remember to reset the frequency back to 125000000. (Note: firmware v1.18 seems fixed this problem.)
## NeoPIxel (WS2812) PIO Driver
The [NeoPixel driver](https://github.com/alankrantas/raspberrypi-pico-micropython-cookbook/tree/main/neopixel) is based on the official PIO example, repackaged into a class similar to CircuitPython's NeoPixel driver.
## DHT11/DHT22 PIO Driver
The [DHT driver](https://github.com/alankrantas/raspberrypi-pico-micropython-cookbook/tree/main/dht) is based on [Harry Fairhead & Mike James' DHT22 PIO code](https://www.i-programmer.info/programming/hardware/14572-the-pico-in-micropython-a-pio-driver-for-the-dht22.html?start=2), repackaged into a class similar to MicroPython's dht module on ESP boards.
## Multicore and Game of Life
[threads.py](https://github.com/alankrantas/raspberrypi-pico-micropython-cookbook/blob/main/threads.py) is a simple example of how to run two tasks simultaneously on both of RP2040's cores.
There's also two versions of [Conway's Game of Life](https://github.com/alankrantas/raspberrypi-pico-micropython-cookbook/tree/main/game-of-life) with OLED display, with or without utilizing dual cores.
## Links
* [Raspberry Pi Pico - Getting Start with MicroPython](https://www.raspberrypi.org/documentation/pico/getting-started/#getting-started-with-micropython)
* [Raspberry Pi Pico Datasheet](https://datasheets.raspberrypi.org/pico/pico-datasheet.pdf)
* [Raspberry Pi Pico Python SDK](https://datasheets.raspberrypi.org/pico/raspberry-pi-pico-python-sdk.pdf)
* [Raspberry Pi Pico Python SDK Examples](https://github.com/raspberrypi/pico-micropython-examples)