RP2350-Tiny

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Overview

RP2350-Tiny
RP2350-Tiny

RP2350, FPC
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Introduction

The RP2350-Tiny micro development board uses the RP2350A developed by Raspberry Pi as the core
The split design separates the USB and button circuits, reducing the overall thickness and volume of the PCB, making it easier for users to integrate into the project
With a split design, compact size, and very thin thickness, this board is ideal for projects that require a small size
Whether you're a beginner or an experienced developer, the RP2350-Tiny is a great choice for your next project

Features

  • RP2350A microcontroller chip designed by Raspberry Pi in the United Kingdom
  • Adopts unique dual-core and dual-architecture design, equipped with dual-core ARM Cortex-M33 processor and dual-core Hazard3 RISC-V core processor, flexible clock running up to 150 MHz
  • 520KB of SRAM, and 4MB of on-board Flash memory
  • Onboard FPC 8PIN connector, adapting USB Type-C port via adapter board
  • Castellated module allows soldering directly 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
  • 28 × multi-function GPIO pins (20 via edge pinout, others via solder points)
  • Multiple hardware peripherals
    • SPI × 2
    • I2C × 2
    • UART × 2
    • 12-bit ADC × 4
    • Controllable PWM channel × 16
  • Accurate clock and timer on-chip
  • Temperature sensor
  • Accelerated floating-point libraries on-chip
  • 12 × Programmable I/O (PIO) state machines for custom peripheral support

Pinout Definition

RP2350-Tiny-details-9.jpg

Dimensions

800px-RP2350-Tiny-details-size.jpg

Cable Installation

  • Please read this section and Precautions thoroughly before installing the cable, otherwise it may cause device damage or short circuit!

  • For versions V1.1 and above, replacing the FPC connector can enhance the connector experience. The version can be distinguished using a marking 'Rev*.*' on the back
  1. Open the flip cover of the cable connector
    Ting-connect-00.jpg
  2. Please ensure that the cable is installed exactly in the center
    Ting-connect-01.jpg
  3. Close the flap, which can be completely closed under normal circumstances
    Ting-connect-02.jpg
  4. If the cable is not installed properly, it will cause the flip cover to fail to close properly. Please adjust the cable position and try closing the flip cover again
    Ting-connect-WR.jpg

Precautions

  • Do not unplug the power strip while it is powered, otherwise it may cause a short circuit
  • When installing the ribbon cable, it is important to note that it should be installed exactly in the center and pushed all the way to the bottom. If not installed correctly, this can lead to connection issues or even a short circuit

Pico Getting Started

Firmware Download

  • MicroPython Firmware Download

MicroPython Firmware Download.gif

  • C_Blink Firmware Download

C Blink Download.gif

Text Tutorial

Introduction

Raspberry Pi Pico Basics

MicroPython Series

Install Thonny IDE

In order to facilitate the development of Pico/Pico2 boards using MicroPython on a computer, it is recommended to download the Thonny IDE

  • Download Thonny IDE and follow the steps to install, the installation packages are all Windows versions, please refer to Thonny's official website for other versions
  • After installation, the language and motherboard environment need to be configured for the first use. Since we are using Pico/Pico2, pay attention to selecting the Raspberry Pi option for the motherboard environment

Pico-R3-Tonny1.png

  • Configure MicroPython environment and choose Pico/Pico2 port
    • Connect Pico/Pico2 to your computer first, and in the lower right corner of Thonny left-click on the configuration environment option --> select Configture interpreter
    • In the pop-up window, select MicroPython (Raspberry Pi Pico), and choose the corresponding port

700px-Raspberry-Pi-Pico-Basic-Kit-M-2.png
700px-Raspberry-Pi-Pico-Basic-Kit-M-3.png

Flash Firmware

  • Click OK to return to the Thonny main interface, download the corresponding firmware library and burn it to the device, and then click the Stop button to display the current environment in the Shell window
  • Note: Flashing the Pico2 firmware provided by Micropython may cause the device to be unrecognized, please use the firmware below or in the package
  • How to download the firmware library for Pico/Pico2 in windows: After holding down the BOOT button and connecting to the computer, release the BOOT button, a removable disk will appear on the computer, copy the firmware library into it
  • How to download the firmware library for RP2040/RP2350 in windows: After connecting to the computer, press the BOOT key and the RESET key at the same time, release the RESET key first and then release the BOOT key, a removable disk will appear on the computer, copy the firmware library into it (you can also use the Pico/Pico2 method)

Raspberry-Pi-Pico2-Python.png

MicroPython Series

【MicroPython】 machine.Pin class function details
【MicroPython】machine.PWM class function details
【MicroPython】machine.ADC class function details
【MicroPython】machine.UART class function details
【MicroPython】machine.I2C class function details
【MicroPython】machine.SPI class function details
【MicroPython】rp2.StateMachine class function details

C/C++ Series

For C/C++, it is recommended to use Pico VS Code for development. This is a Microsoft Visual Studio Code extension designed to make it easier for you to create, develop, and debug projects for the Raspberry Pi Pico series development boards. No matter if you are a beginner or an experienced professional, this tool can assist you in developing Pico with confidence and ease. Here's how to install and use the extension.

  • Official website tutorial: https://www.raspberrypi.com/news/pico-vscode-extension/
  • This tutorial is suitable for Raspberry Pi Pico, Pico2 and the RP2040 and RP2350 series development boards developed by Waveshare
  • The development environment defaults to Windows. For other environments, please refer to the official tutorial for installation

Install VSCode

  1. First, click to download pico-vscode package, unzip and open the package, double-click to install VSCode
    Pico-vscode-1.JPG
    Note: If vscode is installed, check if the version is v1.87.0 or later
    Pico-vscode-2.JPG
    Pico-vscode-3.JPG

Install Extension

  1. Click Extensions and select Install from VSIX
    Pico-vscode-4.JPG
  2. Select the package with the vsix suffix and click Install
    Pico-vscode-5.JPG
  3. Then vscode will automatically install raspberry-pi-pico and its dependency extensions, you can click Refresh to check the installation progress
    Pico-vscode-6.JPG
  4. The text in the right lower corner shows that the installation is complete. Close VSCode
    Pico-vscode-7.JPG

Configure Extension

  1. Open directory C:\Users\username and copy the entire .pico-sdk to that directory
    Pico-vscode-8.JPG
  2. The Copy is completed
    Pico-vscode-9.JPG
  3. Open vscode and configure the paths for the Raspberry Pi Pico extensions
    Pico-vscode-10.JPG
    4. The configuration is as follows: 
    Cmake Path:
${HOME}/.pico-sdk/cmake/v3.28.6/bin/cmake.exe

Git Path:
${HOME}/.pico-sdk/git/cmd/git.exe    

Ninja Path:
${HOME}/.pico-sdk/ninja/v1.12.1/ninja.exe

Python3 Path:
${HOME}/.pico-sdk/python/3.12.1/python.exe

New Project

  1. The configuration is complete, create a new project, enter the project name, select the path, and click Create to create the project
    To test the official example, you can click on the Example next to the project name to select
    Pico-vscode-11.JPG
  2. The project is created successfully
    Pico-vscode-12.JPG
  3. Select the SDK version
    Pico-vscode-13.JPG
  4. Select Yes for advanced configuration
    Pico-vscode-14.JPG
  5. Choose the cross-compilation chain, 13.2.Rel1 is applicable for ARM cores, RISCV.13.3 is applicable for RISCV cores. You can select either based on your requirements
    Pico-vscode-15.JPG
  6. Select default for CMake version (the path configured earlier)
    Pico-vscode-16.JPG
  7. Select default for Ninjaversion
    Pico-vscode-17.JPG
  8. Select the development board
    Pico-vscode-18.JPG
  9. Click Complie to compile
    Pico-vscode-19.JPG
  10. The uf2 format file is successfully compiled
    Pico-vscode-20.JPG

Import Project

  1. The Cmake file of the imported project cannot have Chinese (including comments), otherwise the import may fail
  2. To import your own project, you need to add a line of code to the Cmake file to switch between pico and pico2 normally, otherwise even if pico2 is selected, the compiled firmware will still be suitable for pico
    Pico-vscode-21.JPG 
    3. set(PICO_BOARD pico CACHE STRING "Board type")

Update Extension

  1. The extension version in the offline package is 0.15.2, and you can also choose to update to the latest version after the installation is complete
    Pico-vscode-22.JPG

Arduino IDE Series

Install Arduino IDE

  1. First, go to Arduino official website to download the installation package of the Arduino IDE.
    600px-Arduino下载2.0版本.jpg
  2. Here, you can select Just Download.
    仅下载不捐赠.png
  3. Once the download is complete, click Install.
    IDE安装水印-1.gif
    Notice: During the installation process, it will prompt you to install the driver, just click Install

Arduino IDE Interface

  1. After the first installation, when you open the Arduino IDE, it will be in English. You can switch to other languages in File --> Preferences, or continue using the English interface.
    首选项-简体中文.jpg
  2. In the Language field, select the language you want to switch to, and click OK.
    600px-首选项-简体中文ok.jpg

Install Arduino-Pico Core in the Arduino IDE

  1. Open the Arduino IDE, click on the file in the top left corner, and select Preferences
    RoArm-M1 Tutorial04.jpg
  2. Add the following link to the attached board manager URL, and then click OK 
    https://github.com/earlephilhower/arduino-pico/releases/download/4.0.2/package_rp2040_index.json

    RoArm-M1 Tutorial II05.jpg
    Note: If you already have an ESP32 board URL, you can use a comma to separate the URLs as follows: 

    https://dl.espressif.com/dl/package_esp32_index.json,https://github.com/earlephilhower/arduino-pico/releases/download/4.0.2/package_rp2040_index.json
  3. Click Tools > Development Board > Board Manager > Search pico, as my computer has already been installed, it shows that it is installed
    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 after the computer recognizes a removable hard disk (RPI-RP2).
    Pico Get Start.gif
  2. Download the program and open D1-LED.ino under the arduino\PWM\D1-LED path
  3. Click Tools --> Port, remember the existing COM, do not click this COM (the COM displayed is different on different computers, remember the COM on your own computer)
    UGV1 doenload02EN.png
  4. Connect the driver board to the computer using a USB cable. Then, go to Tools > Port. For the first connection, select uf2 Board. After uploading, when you connect again, an additional COM port will appear
    UGV1 doenload03EN.png
  5. Click Tools > Development Board > Raspberry Pi Pico > Raspberry Pi Pico or Raspberry Pi Pico 2
    Pico Get Start02.png
  6. After setting it up, click the right arrow to upload the program
    Pico Get Start03.png
  • If issues arise during this period, and if you need to reinstall or update the Arduino IDE version, it is necessary to uninstall the Arduino IDE completely. After uninstalling the software, you need to manually delete all contents within the C:\Users\[name]\AppData\Local\Arduino15 folder (you need to show hidden files to see this folder). Then, proceed with a fresh installation.

Open Source Demos

MircoPython video demo (github)
MicroPython firmware/Blink demos (C)
Raspberry Pi official C/C++ demo (github)
Raspberry Pi official micropython demo (github)
Arduino official C/C++ demo (github)


FAQ

Support




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