Difference between revisions of "Raspberry Pi Pico"

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* [https://docs.micropython.org/en/latest/rp2/quickref.html Quick MicroPython reference for the RP2]
 
* [https://docs.micropython.org/en/latest/rp2/quickref.html Quick MicroPython reference for the RP2]
 
* [https://docs.micropython.org/en/latest/library/rp2.html RP2 Python Library Modules]
 
* [https://docs.micropython.org/en/latest/library/rp2.html RP2 Python Library Modules]
 +
* Card has 264KB of SRAM
 
* Free memory under MicroPython plus various module sizes
 
* Free memory under MicroPython plus various module sizes
 
<pre>
 
<pre>

Revision as of 11:53, 6 May 2022

RasPiPico 720px.jpg

Raspberry Pi Pico Features

Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces. Key features include:

  • RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
  • Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
  • 264KB of SRAM, and 2MB of on-board Flash memory
  • Castellated module allows soldering direct to carrier boards
  • USB 1.1 with device and host support
  • Low-power sleep and dormant modes
  • Drag-and-drop programming using mass storage over USB
  • 26 × multi-function GPIO pins
  • 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels
  • Accurate clock and timer on-chip
  • Temperature sensor
  • Accelerated floating-point libraries on-chip
  • 8 × Programmable I/O (PIO) state machines for custom peripheral support

Pinout

PiPico Pins.PNG

Reference Documents

Adapter Cards

In Small Plastic Project Box

  • CircuitSetup Breadboard
  • Fits in 100x60x25mm Project Box
  • Socketed Pico
  • All Pico pins brought to Male Header pins
  • Power/Ground distribution
  • 5V jack
  • Can by Mounted on ODAS Adapter card

PiPico-01 Card

Interesting Applications

Running RP2040 Doom

Running MicroPython

>>> import gc
>>> gc.mem_free()
182624
>>> import time
>>> gc.mem_free()
178544
>>> import machine
>>> gc.mem_free()
174304
>>> 
  • To compare QT Py has 19KB free

Python File System

  • Internal Flash File System
    • Little FS
    • 1.44MB space
    • Blocks are 4KB
    • 352 Blocks on Internal File System
  • os functions
import os
os.[TAB]
os.dir()
os.mkdir("newdir")
os.getcwd()
os.mkdir("newdir")
os.chdir('..')
os.listdir()
os.statvfs('/')
os.uname()
os.remove('file2remove')
os.rename('old','new')
  • Using files
f = open('filename','w')
f.write('data to add')
f.read()
f.close()

Running MM BASIC

Running VGA

Hardware Design Guide Section 3.2