Instructions
Overview
This product RGB Matrix P3.0-64 x 64 is on-board 4096 full-color display LEDs with 3mm pitch, which supports the use of Raspberry Pi, Raspberry Pi Pico, Arduino Mega, ESP32 developing board. The product is provided with open development resources, suitable for the electronic makers and the related learners to learn or DIY.
Features
- On-board 64 x 64 = 4096 full-color display LEDs
- 3mm pitch, displaying text, animation and colorful image
- Onboard two HUB75 headers, respectively for signal input and output. It can be cascaded multi-screen
- Providing open development resources and tutorials for the use of Raspberry Pi, Raspberry Pi Pico, Arduino Mega, ESP32 development boards
Specifications
| Pixels | 64 x 64 |
| Pitch | 3mm |
| Pixel Form | 1R1G1B |
| Viewing Angle | ≥160° |
| Header | HUB75 |
| Control Type | synchronization |
| Driving | 1/32 scan |
| Power Supply | 5V/4A |
| Power Port | VH4 header input |
| Dimensions | 192mm(Length) x 192mm(Width) x 15mm(height) |
Usage
The demo codes of some platforms can directly display the image file, but some platforms need to convert the image data into a hexadecimal array format first, and then copy it to the image data storage array in the demo codes file, so that users can display their own image content according to their needs. Taking the Arduino Mega platform demo codes as an example, if you need to convert and display the image, you can refer to the following link: RGB Dot Matrix Image Conversion Tutorial
Instructions of Hardware Interface Configuration
This product is mainly used with the main-board of Raspberry Pi, with HUB75 for signal input and output of RGB LED Matrix Panel. The connector definitions are in the following figure:
Usage of Raspberry Pi
Definitions of Raspberry Pi and wiring pin of signal input connector:
| Mark | Description of Pin | BCM number | Pins Function | Mark | Description of Pin | BCM number | Pins Function |
|---|---|---|---|---|---|---|---|
| R1 | R higher bit data | 11 | SCLK | G1 | G higher bit data | 27 | P2 |
| B1 | B higher bit data | 7 | CE1 | GND | Ground | GND | GND |
| R2 | R lower bit data | 8 | CE0 | G2 | G lower bit data | 9 | MISO |
| B2 | B lower bit data | 10 | MOSI | E | E line selection | 15 | RXD |
| A | A line selection | 22 | P3 | B | B line selection | 23 | P4 |
| C | C line selection | 24 | P5 | D | D line selection | 25 | P6 |
| CLK | clock input | 17 | P0 | LAT | latch pin | 4 | P7 |
| OE | output enable | 18 | P1 | GND | Ground | GND | GND |
This display uses the open source code on github to demonstrate. Please access the Raspberry Pi terminal, and then enter the following commands in turn:
sudo git clone https://github.com/hzeller/rpi-rgb-led-matrix
cd rpi-rgb-led-matrix
sudo make
cd examples-api-use
sudo ./demo -D 9 --led-rows=64 --led-cols=64For more details about the demo, please read the contents of the README.md file carefully.
Cautions of demo:
1. Turn off onboard audio.
Please modify the content of /boot/config.txt into dtparam=audio=off, because the on-board audio and the timing circuitry required by RGB-Matrix cannot be run simultaneously.
2. Please do not run any programs that run in parallel with the GPIO pins.
3. Disable the 1-wire interface:raspi-config -> Interface Options -> 1-Wire
4. Add the isolcpus=3 statement at the end of the /boot/cmdline.txt file, separated by spaces
Usage of Demo for Raspberry Pi Pico
The wiring pins definitions of signal input for Pico and RGB LED Matrix Panel as following:
| Label | Pins Description | Pico Pins | Label | Pins Description | Pico Pins |
|---|---|---|---|---|---|
| R1 | R higher bit data | GP02 | G1 | G higher bit data | GP03 |
| B1 | B higher bit data | GP04 | GND | Ground | GND |
| R2 | R lower bit data | GP05 | G2 | G lower bit data | GP08 |
| B2 | B lower bit data | GP09 | E | E line selection | GP22 |
| A | A line selection | GP10 | B | B line selection | GP16 |
| C | C line selection | GP18 | D | D line selection | GP20 |
| CLK | clock input | GP11 | LAT | latch pin | GP12 |
| OE | output enable | GP13 | GND | Ground | GND |
Usage of Demo：
After wiring the Pico and the display, open the Thonny Python IDE, access the Pico-RGB Matrix LED_64x64 folder in the demo codes in the "File" window (View -> File), and upload all the files and folders in the folder to In Pico, then double-click to open the main.py file, and click the "run" icon in the menu to run the current code.
Usage of Demo for Arduino Mega
The wiring pins definitions of signal input for Arduino mega and RGB LED Matrix Panel as following:
| Label | Pins Description | Arduino mega Pins | Label | Pins Description | Arduino mega Pins |
|---|---|---|---|---|---|
| R1 | R higher bit data | D24 | G1 | G higher bit data | D25 |
| B1 | B higher bit data | D26 | GND | Ground | GND |
| R2 | R lower bit data | D27 | G2 | G lower bit data | D28 |
| B2 | B lower bit data | D29 | E | E line selection | A4 |
| A | A line selection | A0 | B | B line selection | A1 |
| C | C line selection | A2 | D | D line selection | A3 |
| CLK | clock input | D11 | LAT | latch pin | D10 |
| OE | output enable | D9 | GND | Ground | GND |
Usage of Demo：
After wiring the power cable to the display panel and connecting the signal cable according to Table 2-3, access the Arduino_Mega_RGB_Matrix_64x64 folder and double-click to open the Arduino_Mega_RGB_Matrix_64x64.ino file. Then click the Verify button, and then click the Upload button. The demo code realizes the function of displaying text and pictures in a loop.
Usage of Demo for ESP32
The wiring pins definitions of signal input for ESP32 and RGB LED Matrix Panel as following:
| Label | Pins Description | ESP32 Pins | Label | Pins Description | ESP32 Pins |
|---|---|---|---|---|---|
| R1 | R higher bit data | P25 | G1 | G higher bit data | P26 |
| B1 | B higher bit data | P27 | GND | Ground | GND |
| R2 | R lower bit data | P14 | G2 | G lower bit data | P12 |
| B2 | B lower bit data | P13 | E | E line selection | P32 |
| A | A line selection | P23 | B | B line selection | P22 |
| C | C line selection | P5 | D | D line selection | P17 |
| CLK | clock input | P16 | LAT | latch pin | P4 |
| OE | output enable | P15 | GND | Ground | GND |
Usage of Demo：
The Arduino IDE version used in this demo is arduino-ide_2.3.2_Windows_64bit
1.Download and unzip the ESP32_Packages folder (the unzipped esp32 folder will have "hardware" and "tools" subfolders), copy the unzipped esp32 folder to the packages under the installation directory of Arduino IDE, such as C:\Users\Admin\AppData\Local\Arduino15\packages (Admin is the user name of my computer, which needs to be replaced according to the actual user name of your computer), as shown in the figure below:
2. Copy the files in the downloaded demo codes\ESP32\libraries folder to the libraries in the installation directory of Arduino IDE; for example, the path on my computer is C:\Users\Admin\Documents\Arduino\libraries ('Admin' is the user name of my computer, which needs to be replaced according to the actual user name of your computer);
3. After connecting the power cable to the screen and connecting the signal cable according to Table 2-4, enter the ESP32 folder and you will find 4 subfolders: SimpleTestShapes, PatternPlasma, BouncingSquares, AurroraDemo, where SimpleTestShapes is for basic shape display, PatternPlasma is for plasma pattern display, BouncingSquares is for bouncing square display, and AurroraDemo is for animation effect display;
4. Select the appropriate board and port according to the ESP32 module model you are using, as shown in Figure 2-4 below:
5.Then click the Verify button, and then click the Upload button. The demo code implements the function of displaying text and pictures in a loop.
Resources
Demo codes for Raspberry Pi platform: https://github.com/hzeller/rpi-rgb-led-matrix
Demo Codes for Raspberry Pi Pico
Product Mechanical Dimensions File P3QD-64X64-21A-PRO.dwg
Rcvbp file for the Colorlight 5A-75B receiving card
Notice: If you get RGB Matrix LED Display Panel-P3.0-64x64 which displays RBG, please refer to the demo codes in GitHub: https://github.com/seengreat/RGB-Matrix-P3.0-64x64