Raspberry-Pi-Pico-Sensor-Kit

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Raspberry-Pi-Pico-Sensor-Kit
Raspberry-Pi-Pico-Sensor-Kit
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Raspberry Pi Pico
Sensors Pack including 13pcs sensor module, such as temperature ,humidity, gas, color ,flame...
Raspberry-Pi-Pico
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Overview

Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces. It incorporates Raspberry Pi's own RP2040 microcontroller chip, with a dual-core Arm Cortex M0+ processor running up to 133 MHz, embedded 264KB of SRAM, and 2MB of onboard Flash memory, as well as 26 x multi-function GPIO pins.
For software development, either Raspberry Pi's C/C++ SDK or the MicroPython is available. There are also complete development resources and tutorials to help you get started easily, and integrate it into end products quickly.

Features

  • RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom.
  • Dual-core Arm Cortex M0+ processor, the flexible clock running up to 133 MHz.
  • 264KB of SRAM, and 2MB of onboard 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

Pico-R3-Pinout02.jpg

Dimension

Pico-R3-Pinout2.jpg

User Guides for MicroPython

Flash Firmware

  • Download Testing Firmware to your computer and extract it.
    • There are two uf2 files, the pico_micropython_20210121.uf2 file is MicroPython firmware.
  • Press the button on the Pico board, connect the Pico to the USB port of the computer via the Micro USB cable, and then release the button.
    • After connecting, the computer will automatically recognize a removable disk (RPI-RP2).

Micropython-firmware.png

  • Copy and drag the firmware file downloaded earlier to the RPi-RP2 mobile disk.
  • After the copy is completed, Pico will automatically restart, and after the automatic restart, pico will be recognized as a virtual serial port.

Pico-com53.png
【Note】 1. Is the mobile disk not automatically recognized after connecting to Pico?
▶ Check that the BOOTSEL button is not pressed or released in the middle.
▶ The Micro USB cable used must be a data cable, and the USB cable that can only be used for power supply cannot be used.
2. You can also operate on the Raspberry Pi, the operation steps are the same, also connect the pico to the Raspberry Pi, and then drag the firmware to the mobile disk.

Software Environment Debugging

Windows

To facilitate the development of Pico boards using MicroPython on the computer, it is recommended to download Thonny IDE.

Thony-wins.png
Thony2.png

Raspberry

If you want to control Pico on Raspberry Pi, please refer to this configuration step.
Current Raspberry Pi systems come with Thonny IDE.
But if Thonny is not updated to the latest version, there is no Pico support package, and you need to update Thonny to the latest v3.3.3 version.

  • Enable a terminal and enter the following command to update thonny.
sudo apt upgrade thonny
  • Open Thonny IDE (click Raspberry logo -> Programming -> Thonny Python IDE).
  • Select Tools -> Options... -> Interpreter.
  • Select MicroPython (Raspberry Pi Pico and ttyACM0 port.

Thony3.png

LED Control Demo

  • Connect the Pico to the computer (without pressing any keys), if you have not flashed MicroPython before, please follow the #Flash Firmware operation.
  • Select Tools -> Options... -> Interpreter.
  • Select Raspberry Pi Pico in the interpreter options (be careful to download the latest version of Thonny, otherwise there is no option).
  • port selection.
    • On the computer, the port is selected as, after connecting to Pico, the COM port recognized by the computer.
    • On the Raspberry Pi, the port is identified as /dev/ttyACM0.
  • Then confirm.
  • After confirmation, you can see that there will be multiple Pico information in the command line interface, and now you can enter the MicroPython program here to control the Pico.

Thony5.png
Thony6.png
Thony7.png

  • Looking at the pin diagram of Pico, we know that the control pin of Pico's on-board LED is GPIO25, here we try to control the on-board LED.
  • Run the following code in sequence in Thonny:
>>> from machine import Pin
>>> led = Pin(25, Pin.OUT)
>>> led.value(1)
>>> led.value(0)

LED demo-shell.png
After running the code in sequence, you can see that the Pico onboard LED lights are turned on and then off.
【Note】
If you want to know more about the functions of Pico Micropython, you can refer to Pico Python SDK Manual.

MQ5 Gas Sensor Module Pin Connection

Modules such as flame sensors, Hall sensors, infrared proximity sensors, liquid level sensors, soil moisture sensors, MQ5 gas sensors, sound sensors, and ultraviolet sensors share the same pin layout. This allows for program reuse. Here takes the MQ5 gas sensor module as an example:
Adc sensor1.jpg

Laser Sensor Module Pin Connection

Laser sensor and tilt sensor modules share the same pinout, allowing for program reuse. Here takes the laser sensor as an example:
Laser sensor1.jpg

Color Sensor Module Connection

Color sensor1.jpg

Rotaion Encoder Module Connection

Rotation sensor1.jpg

Temperature-Humidity Sensor Module Connection

TH sensor1.jpg

Pico Quick Start

Firmware Download

  • MicroPython Firmware Download

MicroPython Firmware Download.gif

  • C_Blink Firmware Download

C Blink Download.gif

Text Tutorial

Introduction

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

  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 "Additional boards manager URLs", 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 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
  3. Click on Tools -> Board -> 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 from #Resource, open the D1-LED.ino under arduino\PWM\D1-LED path.
  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 Tools -> 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 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

Resource

Example Demo

Official Document

Pico W

Firmware

Pico

User Manual

Schematic & Datasheet

Related Books

Raspberry Pi Open-source Demo

Development Software

Support



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