Raspberry Pi Pico

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

Reference Documents

• Raspberry Pi Pico data sheet
• RP2040 Datasheet
• Hardware Design Guide
• Getting started with Raspberry Pi Pico - C/C++ development with Raspberry Pi Pico and other RP2040-based microcontroller boards
• Raspberry Pi Pico C/C++ SDK
• Raspberry Pi Pico Python SDK

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

• PiPico-01 Card - Our design

Interesting Applications

Running RP2040 Doom

• RP2040 Doom

Running MicroPython

• MicroPython page
• Raspberry Pi Pico with MicroPython
• Python SDK
• Quick MicroPython reference for the RP2
• RP2 Python Library Modules
• Card has 264KB of SRAM
• Free memory under MicroPython plus various module sizes

>>> 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

• "Boot to MM BASIC" on the Raspberry Pi Pico

Running VGA

Hardware Design Guide Section 3.2