Template: Pico-Pico-RGB-Matrix-P3-64x32 Manual
Introduction to Floor Resources
Directions for Raspberry Pi
This product is mainly used with Raspberry PI Pico, not recommended with Raspberry PI motherboard because the new version of Raspberry PI is not supported in wiring PI.
If you must use a Raspberry PI motherboard, please refer to github information: Demo, wiring reference
If the overall brightness of the indicator is dim, click setting to set the brightness.
User Guides for Pico
Pico connection pins
|Pins used by RGB LED Matrix (HUB75 interface)|
|R1||GP02||R higher bit data|
|G1||GP03||G higher bit data|
|B1||GP04||B higher bit data|
|R2||GP05||R lower bit data|
|G2||GP08||G lower bit data|
|B2||GP09||B lower bit data|
|A||GP10||A line selection|
|B||GP16||B line selection|
|C||GP18||C line selection|
|D||GP20||D line selection|
|E||GP22||E line selection|
|Pins used by other resources of the board|
|K0||GP15||KEY0 button, the MENU menu of the digital clock, can also be customized|
|K1||GP19||KEY1 button, + / Down button of digital clock, can also be customized|
|K2||GP21||KEY2 button,-/ UP button of digital clock, can also be customized|
|RUN||RUN||RESET button, can be used for Pico reset|
|BOOTSET||BOOTSET||BOOT button, can be used for Pico burning program (long press BOOT, then press RESET to enter the firmware download mode)|
|SDA||GP06||I2C data pin, used to control DS3231 RTC clock chip|
|SCL||GP07||I2C clock pin, used to control DS3231 RTC clock chip|
|BUZZ||GP27||Buzzer control pin|
|AIN||GP26||Photoresistor control pin|
|IRM||GP28||Infrared receiving control pin|
See detailed hardware design of the circuit diagram.
- Pico-RGB-Matrix-P3-64 x 32 (this product).
- Raspberry Pi Pico (must be purchased separately, if not, it is recommended to buy a version with soldered headers, which is convenient for direct insertion and use).
- Micro USB cable (must be purchased separately).
Hardware connection steps
- Align the pin header which is marked in red and then connect the RGB LED Matrix panel to the driver board.
- Cut the adapter cable (about 10cm) by plier
- Connect the cable which is cut in the last step to the RGB LED Matrix and the driver board
- Assemble the Acrylic backplane and fix it with magnetic screws
- Optional: If you feel that the RGB LED Matrix is too bright, you can stick the black Acrylic font panel on the Matrix.
Multi-Features Digital Clock
This example is developed based on the C++ SDK. In order to quickly demonstrate the effects and functions of the example, you can skip the steps of "Building a C++ SDK Development Environment" and "Program Debugging and Development" and directly "Download and Burn the Program". After the burning is completed, the effect of the instance running is shown in the following figure:
- Time display screen:
- Display date, day of the week, hour, minute, lunar calendar and temperature
- Function setting menu
- Date setting
- time setting
- BEEP setting (buzzer setting)
- Auto brightness
- Language setting (under development)
- The display can display a variety of fruits or other small BMP icons
- Automatically scroll icons at regular intervals, and randomly display the results of the scrolling
Infrared transceiver test
This example is developed based on CircuitPython,and the example effects and functions are as follows:
- The infrared serial code generated by the corresponding button of the infrared remote control can be recognized
C++ SDK Development Tutorial
Development environment setup
For a complete tutorial on how to get started with the C/C++ SDK, You can directly refer to the Offical manual of Raspberry Pi.
Raspberry Pi development environment setup
If you plan to develop for Pico on the Raspberry Pi, you can quickly set up the C/C++ toolchain by running our "setup script" from the command line.
Instructions: Before running the installation script, you should make sure that the operating system on your Raspberry Pi is up to date.
Windows development environment setup
For Windows development environment construction, please refer to:
Download and burn programs
C++ SDK program programming
The following is an example of programming a simple "blinking LED" program:
- Download blink.uf2 ("Blink LED" flash file)
- Press and hold the BOOTSEL button, then plug the Pico into the USB port of your Raspberry Pi or other computer.
- It will be mounted as a mass storage device named "RPI-RP2". Drag and drop the blink.uf2 binary onto the "RPI-RP2" drive letter. The Pico will restart and the onboard LEDs should start blinking.
- Check out the Github source code for "Blink LED"
CircuitPython Development Tutorial
If you are not familiar with CircuitPython, you can first study the official recommended guide "Introduction to CircuitPython for Raspberry Pi Pico".
This guide covers the basics of getting started with CircuitPython and using the editor.
Development environment setup
In order to facilitate the programming, development and debugging of CircuitPython, it is recommended to use the "Mu Editor" development software. You can use Mu Editor for Pico's CircuitPython development on Windows.
The following describes the development and use of Mu Editor under Windows.
Windows development environment (Mu Editor) build and use
- Download Mu Editor and follow the steps to install
- After the installation is complete, it is the first time to configure the language and select the mode. Since we are using CircuitPython, pay attention to the mode selection CircuitPython option.
- After the configuration is complete, it will show that the device cannot be found, that is because Pico has not downloaded the CircuitPython firmware library.
- Download the CircuitPython firmware library and burn it into Pico
- Download the CircuitPython UF2 file.
- Press and hold the BOOTSEL button, then plug the Pico into the USB port of your Raspberry Pi or other computer. Release the BOOTSEL button after connecting the Pico.
- It will be mounted as a mass storage device named "RPI-RP2".
- Drag and drop the CircuitPython UF2 file onto the "RPI-RP2" volume. Your Pico will reboot, a new disk drive named CIRCUITPY will appear, and you're done.
- The new disk drive will have a default code.py file, you open it with Mu Editor, the content is: "print("Hello World!")", the specific opening steps are shown in the last figure.
- Open the serial port, click the blank area and press Ctrl+C, then press Ctrl+D or click the blank area of the code interface and press Ctrl+S to run the program. You can observe the running effect in the CircuitPython REPL window.