Pico CAN A

CAN
UART Interface

Overview

CAN Bus Module For Raspberry Pi Pico, Enabling Long-Range Communication Through UART.

Features

Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series.
Incorporates E810-TTL-CAN01 module, UART to CAN bus conversion.
Three conversion methods: transparent conversion, transparent conversion with identification, and protocol mode conversion.
Provide online resources and manuals (example demos such as Raspberry Pi Pico C/C++ and MicroPython).

Specifications

Operating voltage: 3.3V
CAN transceiver: E810-TTL-CAN01
Communication bus: UART
Baudrate: 300~921,600 bps
Dimension: 58 × 25mm

Pinouts

Dimension

Pico Quick Start

Firmware Download

MicroPython Firmware Download

C_Blink Firmware Download

Text Tutorial

Introduction

Raspberry Pi Pico

MicroPython Series

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 board. Whether you are a beginner or an experienced professional, this tool can help you confidently and easily develop Pico. Below we will introduce how to install and use the extension.

Official website tutorial: https://www.raspberrypi.com/news/pico-vscode-extension/.
This tutorial is applicable to Raspberry Pi Pico, Pico2, and our company's RP2040 and RP2350 series development boards.
The development environment defaults to Windows as an example. For other environments, please refer to the official website tutorial for installation.

Arduino IDE Series

Install Arduino IDE

Download the Arduino IDE installation package from Arduino website.
Just click on "JUST DOWNLOAD".
Click to install after downloading.
Note: You will be prompted to install the driver during the installation process, we can click Install.

Install Arduino-Pico Core on Arduino IDE

Open Arduino IDE, click the File on the left corner and choose "Preferences".

Add the following link in "Additional boards manager URLs", then click OK.

https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

Note: If you already have the ESP32 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

Click on Tools -> Board -> Board Manager -> Search for pico, it shows installed since my computer has already installed it.

Upload Demo At the First Time

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).
Download the demo from #Resource, open the D1-LED.ino under arduino\PWM\D1-LED path.
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).
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.
Click Tools -> Board -> Raspberry Pi Pico/RP2040 -> Raspberry Pi Pico.
After setting, click the right arrow to upload.
- If you encounter problems during the period, you need to reinstall or replace the Arduino IDE version, uninstall the Arduino IDE clean, 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

Hardware connection

Please take care of the direction when you connect Pico, an USB port is printed to indicate. You can also check the pin of Pico and the LCD board when connecting. (It can also be judged by the pin labels on the module and the Pico )

Download Demo codes

sudo apt-get install p7zip-full
cd ~
sudo wget  https://files.waveshare.com/upload/d/d8/Pico-CAN-A-Code.7z
7z x Pico_Pico-CAN-A-Code.7z -o./Pico-CAN-A-Code.7z
cd ~/Pico-CAN-A-Code

Run the Demo codes

This guide is based on Raspberry Pi.

C examples

To be continued...

Python codes

Use in Windows

1. Press and hold the BOOTSET button on the Pico board, connect the Pico to the USB port of the computer through the Micro USB cable, and release the button after the computer recognizes a removable hard disk (RPI-RP2).
2. Copy the rp2-pico-20210418-v1.15.uf2 file in the python directory to the recognized removable disk (RPI-RP2).
3. Open Thonny IDE (Note: Use the latest version of Thonny, otherwise there is no Pico support package, the latest version under Windows is v3.3.3).
4. Click Tools -> Settings -> Interpreter, and select Pico and the corresponding port as shown in the figure.

5. File -> Open -> the corresponding .py file, click to run, as shown in the following figure:

This demo provides a simple program...

Resource

Document

Schematic

Examples

Demo codes

Development Software

Support

Technical Support

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Pico-CAN-A

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