Design with Adafruit 8x16 LED Matrix FeatherWing - Red in Cirkit DesignerThe Adafruit 8x16 LED Matrix FeatherWing in Red is a versatile and visually appealing electronic component that offers a grid of 128 red LEDs arranged in an 8x16 matrix. This LED matrix is designed to be used with the Adafruit Feather series of development boards, providing a compact and easy-to-use display option for a variety of projects. Common applications include scrolling text displays, animations, simple graphics, and interactive games.
This circuit connects an Arduino UNO R4 WiFi microcontroller to a 64x32 LED matrix display. The Arduino is configured to control the LED matrix, sending color data and control signals to display various colors across the matrix. The embedded code on the Arduino cycles through a range of colors, filling the entire LED matrix with each color in sequence.
Open Project in Cirkit Designer
This circuit features an Arduino UNO microcontroller connected to multiple 8x8 LED matrix displays and pushbuttons. The pushbuttons are interfaced with digital pins D2, D3, and D4 on the Arduino for input, while the LED matrices are connected to digital pins D5 through D10 for control signals. Additionally, there is a single red LED with a series resistor connected to pin D12, likely used as an indicator light.
Open Project in Cirkit Designer
This circuit consists of an Arduino UNO R4 WiFi microcontroller connected to a 64x32 LED matrix. The Arduino controls the LED matrix by sending signals to various pins to display different colors and patterns, as defined in the embedded code.
Open Project in Cirkit Designer
This circuit consists of an Arduino UNO microcontroller connected to two daisy-chained WS2812 RGB LED 8x8 matrices. The Arduino controls the LED matrices to display patterns that simulate a slow blinking human eyes effect. The code for the Arduino is written to create and cycle through different eye patterns, varying from open to half-closed to closed, to achieve the blinking effect.
Open Project in Cirkit Designer| Pin Name | Description |
|---|---|
| GND | Ground connection |
| VCC | Power supply (3.3V to 5V DC) |
| SDA | I2C Data line |
| SCL | I2C Clock line |
| ADDR | I2C Address selection (with solder jumpers) |
| RST | Reset pin (optional use) |
Power Connections:
Data Connections:
Library Installation:
Adafruit_LED_Backpack library through the Arduino Library Manager.Programming:
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_LEDBackpack.h>
Adafruit_8x16matrix matrix = Adafruit_8x16matrix();
void setup() {
matrix.begin(0x70); // Start the LED matrix with the I2C address
matrix.setBrightness(10); // Set brightness to a value between 0 and 15
}
void loop() {
matrix.clear(); // Clear the matrix display
matrix.setCursor(0, 0); // Set cursor at top-left corner
matrix.print(F("Hello")); // Print a message to the matrix
matrix.writeDisplay(); // Update the display with the new data
delay(500); // Wait for half a second
}
Q: Can I use this LED matrix with other microcontrollers? A: Yes, as long as the microcontroller supports I2C communication and can provide the necessary power.
Q: How do I change the I2C address? A: Solder or desolder the jumpers on the ADDR pin to set a new address.
Q: Can I daisy-chain multiple matrices? A: Yes, you can connect multiple matrices in series, but ensure each has a unique I2C address.
Q: Is it possible to use this matrix with a 3.3V system? A: Yes, the matrix can operate at 3.3V, but the LEDs may be dimmer compared to a 5V supply.
For further assistance, consult the Adafruit forums or the product's official documentation.