Design with Adafruit OLED FeatherWing in Cirkit DesignerThe Adafruit OLED FeatherWing is an add-on board for the Adafruit Feather ecosystem, providing a compact and easy-to-read 128x32 pixel monochrome OLED display. This display is ideal for presenting data, menus, and other visual feedback in a clear and legible format. It is commonly used in wearable devices, portable instruments, and any application where a small display is necessary.
This circuit consists of an Arduino UNO connected to an Adafruit OLED FeatherWing display via I2C communication (SDA and SCL lines). The Arduino is powered through a Vcc source and provides 3.3V and GND connections to the OLED display. The Arduino runs a program to display 'Hello, World!' on the OLED screen.
Open Project in Cirkit Designer
This circuit uses an Arduino UNO to read data from an MPU-6050 accelerometer and gyroscope sensor and display the readings on an Adafruit 128x64 OLED FeatherWing. The Arduino communicates with both the sensor and the display via the I2C protocol, and the code initializes the devices, reads sensor data, and updates the display every 500 milliseconds.
Open Project in Cirkit Designer
This circuit consists of an Arduino 101 microcontroller connected to a 0.96" OLED display via I2C communication. The Arduino runs a program that initializes the OLED and continuously displays an animated sequence of frames on the screen.
Open Project in Cirkit Designer
This circuit features an Adafruit HUZZAH32 ESP32 Feather board as the central microcontroller, which is connected to an Adafruit Quad AlphaNumeric Featherwing display and an Adafruit ADXL343 accelerometer via I2C communication (SCL and SDA lines). The ESP32 controls a vibration motor connected to one of its GPIO pins (A5_IO4) and shares a common power supply (3.3V) and ground (GND) with the other components. The purpose of this circuit is likely to read acceleration data, display information on the alphanumeric display, and provide haptic feedback through the vibration motor.
Open Project in Cirkit Designer| Pin | Description |
|---|---|
| GND | Ground connection |
| 3V | 3.3V power supply |
| SCL | I2C clock line |
| SDA | I2C data line |
| RST | Reset pin (optional use) |
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
void setup() {
// Initialize with the I2C addr 0x3C (for the 128x32)
if(!display.begin(SSD1306_I2C_ADDRESS, 0x3C)) {
Serial.println(F("SSD1306 allocation failed"));
for(;;); // Don't proceed, loop forever
}
display.display();
delay(2000); // Pause for 2 seconds
// Clear the buffer
display.clearDisplay();
// Draw a single pixel in white
display.drawPixel(10, 10, WHITE);
// Show the display buffer on the screen
display.display();
delay(2000); // Pause for 2 seconds
}
void loop() {
// Put your main code here, to run repeatedly:
}
Wire library's begin() function to specify the I2C address if it's different from the default.Q: Can I use the OLED FeatherWing with boards other than Adafruit Feather?
A: Yes, as long as the board supports 3.3V logic and has an I2C interface.
Q: How do I control the brightness of the display?
A: You can use the setContrast() function provided by the Adafruit_SSD1306 library to adjust the brightness.
Q: Is it possible to display images on the OLED FeatherWing?
A: Yes, you can display bitmap images using the Adafruit_GFX library functions.
Q: Can I use multiple OLED FeatherWings together?
A: Yes, but you will need to manage different I2C addresses and ensure each display is addressed separately in your code.