RP2040-PiZero

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RP2040-PiZero
RP2040-PiZero.jpg

RP2040
Micro SD, DVI, USB Type-C
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Overview

Introduction

RP2040-PiZero is a high-performance and cost-effective microcontroller board designed by Waveshare, with an onboard DVI interface, TF card slot, and PIO-USB port, compatible with Raspberry Pi 40PIN GPIO header, easy to develop and integrate into the products.

Features

  • 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 16MB of onboard Flash memory.
  • The onboard DVI interface can drive most HDMI screens (DVI compatibility required).
  • Supports use as a USB host or slave via onboard PIO-USB port.
  • Onboard TF card slot for reading and writing TF cards.
  • Onboard Lithium battery recharge/discharge header, suitable for mobile scenarios.
  • USB 1.1 with device and host support.
  • Drag-and-drop programming using mass storage over USB.
  • Low-power sleep and dormant modes.
  • 2 × SPI, 2 × I2C, 2 × UART, 4 × 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.

Dimensions

RP2040-PiZero-size.jpg

Pico Quick Start

Download Firmware

  • MicroPython Firmware Download

MicroPython Firmware Download.gif

  • C_Blink Firmware Download

C Blink Download.gif

Video Tutorial

  • Pico Tutorial I - Basic Introduction

  • Pico Tutorial II - GPIO

  • Pico Tutorial III - PWM

  • Pico Tutorial IV - ADC

  • Pico Tutorial V - UART

  • Pico Tutorial VI - To be continued...

MicroPython Series

C/C++ Series

Arduino IDE Series

Install Arduino IDE

  1. Download the Arduino IDE installation package from Arduino website.
    RoArm-M1 Tutorial II01.jpg
  2. Just click on "JUST DOWNLOAD".
    Arduino IDE Pico.png
  3. Click to install after downloading.
    RoArm-M1 Tutorial II02.gif
  4. Note: You will be prompted to install the driver during the installation process, we can click Install.

Install Arduino-Pico Core on Arduino IDE

  1. Open Arduino IDE, click the File on the left corner and choose "Preferences".
    RoArm-M1 Tutorial04.jpg
  2. Add the following link in the additional development board manager URL, then click OK.
    https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

    RoArm-M1 Tutorial II05.jpg
    Note: If you already have the ESP8266 board URL, you can separate the URLs with commas like this: 

    https://dl.espressif.com/dl/package_esp32_index.json,https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
  3. Click on Tools -> Dev Board -> Dev Board Manager -> Search for pico, it shows installed since my computer has already installed it.
    Pico Get Start 05.png
    Pico Get Start 06.png

Upload Demo At the First Time

  1. Press and hold the BOOTSET button on the Pico board, connect the Pico to the USB port of the computer via the Micro USB cable, and release the button when the computer recognizes a removable hard drive (RPI-RP2).
    Pico Get Start.gif
  2. Download the demo, open arduino\PWM\D1-LED path under the D1-LED.ino.
  3. Click Tools -> Port, remember the existing COM, do not need to click this COM (different computers show different COM, remember the existing COM on your computer).
    UGV1 doenload02EN.png
  4. Connect the driver board to the computer with a USB cable, then click Tools -> Ports, select uf2 Board for the first connection, and after the upload is complete, connecting again will result in an additional COM port.
    UGV1 doenload03EN.png
  5. Click Tool -> Dev Board -> Raspberry Pi Pico/RP2040 -> Raspberry Pi Pico.
    Pico Get Start02.png
  6. After setting, click the right arrow to upload.
    Pico Get Start03.png
    • If you encounter problems during the period, you need to reinstall or replace the Arduino IDE version, uninstall the Arduino IDE needs to be uninstalled cleanly, after uninstalling the software you need to manually delete all the contents of the folder C:\Users\[name]\AppData\Local\Arduino15 (you need to show the hidden files in order to see it) and then reinstall.


Open Source Demo

Sample Demo

C Demo

01-DVI

Main Directory Analysis

  • apps: the demo source codes.
  • assets: the original picture and picture header file.
  • include: the default pin configuration header file.
  • libvi: the related DVI driver source code.
  • libgui: the related GUI source code.

Hello DVI Demo

  • The Hello DVI demo is located in the "hello_dvi" file of the "apps" directory.
  • Scrolling display of a test image with a resolution of 320x240p in RGB565 format is in a 640x480p 60Hz DVI mode.

RP2040-PiZero01.jpg

Gui Demo

  • The Gui demo is located in the "gui demo" file of the "apps" directory.
  • In 640x480p 60Hz DVI mode, it sequentially displays white, red, yellow, green, cyan, blue, purple, and black screens, followed by the GUI image.

RP2040-PiZero02.jpg

02-USB

Main Catalog Analysis

  • examples: the demo source code.
  • src: the related PIO-USB driver source code.

capture_hid_report Demo

  • capture_hid_report demo is located on the capture_hid_report of the examples directory.
    • PIO-USB serves as a sample demo for the USB host and can be used to print the HID report received from the device.

RP2040-PiZero 03.jpg

usb_device

  • The "usb_device" demo is located in the "usb_device" directory of the "examples" directory.
    • The PIO-USB example emulates a mouse and moves the mouse cursor every 0.5 seconds.

RP2040-PiZero 04.gif

Host_hid_to_device_cdc

  • The "Host_hid_to_device_cdc" demo is located in the "Host_hid_to_device_cdc" directory of the "examples" directory.
  • Host_hid_to_device_cdc" is similar to "capture_hid_report" and it prints mouse/keyboard reports from the host port to the device port's CDC.

RP2040-PiZero 05.jpg

03-MicroSD

Main Directory Analysis

  • tests: the source code for testing.
  • FatFs_SPI: the related MicroSD source code.

Demo

  1. Using terminal tools such as Putty or MobaXterm, open the USB serial port corresponding to RP2040-PiZero.
  2. When you press Enter, it will display the following information: 
    >
  3. Input "help" command to display the following information: 
    setrtc <DD> <MM> <YY> <hh> <mm> <ss>:
  Set Real Time Clock
  Parameters: new date (DD MM YY) new time in 24-hour format (hh mm ss)
	e.g.:setrtc 16 3 21 0 4 0

date:
 Print current date and time

lliot <drive#>:
 !DESTRUCTIVE! Low Level I/O Driver Test
	e.g.: lliot 1

format [<drive#:>]:
  Creates an FAT/exFAT volume on the logical drive.
	e.g.: format 0:

mount [<drive#:>]:
  Register the work area of the volume
	e.g.: mount 0:

unmount <drive#:>:
  Unregister the work area of the volume

chdrive <drive#:>:
  Changes the current directory of the logical drive.
  <path> Specifies the directory to be set as current directory.
	e.g.: chdrive 1:

getfree [<drive#:>]:
  Print the free space on drive

cd <path>:
  Changes the current directory of the logical drive.
  <path> Specifies the directory to be set as current directory.
	e.g.: cd 1:/dir1

mkdir <path>:
  Make a new directory.
  <path> Specifies the name of the directory to be created.
	e.g.: mkdir /dir1

ls:
  List directory

cat <filename>:
  Type file contents

simple:
  Run simple FS tests

big_file_test <pathname> <size in bytes> <seed>:
 Writes random data to file <pathname>.
 <size in bytes> must be multiple of 512.
	e.g.: big_file_test bf 1048576 1
	or: big_file_test big3G-3 0xC0000000 3

cdef:
  Create Disk and Example Files
  Expects card to be already formatted and mounted

start_logger:
  Start Data Log Demo

stop_logger:
  Stop Data Log Demo

Arduino Demo

01-DVI

Hello Dvi

  • The Hello DVI demo is located in the "Hello DVI" directory.
  • Scrolling display of a test image with a resolution of 320x240p in RGB565 format is in a 640x480p 60Hz DVI mode.

RP2040-PiZero01.jpg

02-USB

Install Dependency Library

This demo requires the Pico PIO USB library to be installed as follows:
1. Install Pico PIO USB library:
RP2040-Pizero-usb.png
2. Select "Install All":
RP2040-Pizero-usb02.png
3. Successfully installed:
RP2040-Pizero-usb03.png
4. Modify the USB Stack configuration:
RP2040-Pizero-usb04.png

device_in

  • The device_in demo is located in the "device_in" directory.
  • The PIO-USB will be used as a USB host example demo for printing HID reports received from the device.
Core1 setup to run TinyUSB host with pio-usb
Device attached, address = 1
Device 1: ID 05ac:0256
Device Descriptor:
  bLength             18
  bDescriptorType     1
  bcdUSB              0110
  bDeviceClass        0
  bDeviceSubClass     0
  bDeviceProtocol     0
  bMaxPacketSize0     64
  idVendor            0x05ac
  idProduct           0x0256
  bcdDevice           0310
  iManufacturer       1     CX
  iProduct            2     2.4G Wireless Receiver
  iSerialNumber       0     
  bNumConfigurations  1
TinyUSB Dual Device Info Example

03-MicroSD

Demo

  • Insert the SD card and run the demo to write data to the SD card.
Hello, world!
V2-Version Card
R3/R7: 0x1aa
R3/R7: 0x40ff8000
R3/R7: 0xc0ff8000
Card Initialized: High Capacity Card
SD card initialized
SDHC/SDXC Card: hc_c_size: 30475
Sectors: 31207424
Capacity:    15238 MB
Goodbye, world!

Resource

Demo

Schematic

Official Resources

Raspberry Pi Official Datasheet

Raspberry Pi Open-source Demo

Development Software

Support



Technical Support

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