1. 打开 Arduino IDE,然后转到 Sketch > Include Library > Manage Libraries。
2. 在搜索框中输入“SSD1306”,然后从 Adafruit 安装 SSD1306 库。
3. 选择“install all”。如果没有跳出弹窗,则从 Adafruit 安装 SSD1306 库后,在搜索框中键入“GFX”并安装该库。
4. 安装库后,重新启动 Arduino IDE。(实测非必须)
#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 I2C Pins
#define I2C_SDA 14
#define I2C_SCL 15
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
void setup() {
// Initialize with the I2C addr 0x3C (for the 128x32)
Wire.begin(I2C_SDA, I2C_SCL);
if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C, false, false)) {
Serial.println(F("SSD1306 allocation failed"));
for(;;); // Don't proceed, loop forever
}
// Clear the buffer.
display.clearDisplay();
display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE); // Draw white text
display.setCursor(0,0); // Start at top-left corner
display.println(F("Hello, World!"));
display.display();
}
要将代码上传到 Lolin32 OLED 板,请将其插入计算机。在 Arduino IDE 中,转到“工具”>端口,然后选择它连接到的 COM 端口。完成连线。
然后,转到“工具>板”并选择“WEMOS LOLIN32”。
然后就可以看到效果:
#include <WiFi.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define CAMERA_MODEL_AI_THINKER
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
// WiFi credentials
const char* ssid = "xxxx";
const char* password = "xxxx";
// Define I2C Pins for ESP32-CAM
#define I2C_SDA 14
#define I2C_SCL 15
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
void setup() {
Serial.begin(115200);
// Initialize I2C
Wire.begin(I2C_SDA, I2C_SCL);
// Initialize OLED
if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Use the correct I2C address here (commonly 0x3C or 0x3D for 128x32 displays)
Serial.println(F("SSD1306 allocation failed"));
for(;;); // Don't proceed, loop forever
}
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(SSD1306_WHITE);
display.setCursor(0,0);
// Connect to WiFi
WiFi.begin(ssid, password);
Serial.print("Connecting to WiFi...");
display.println("Connecting to WiFi...");
display.display();
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("\nWiFi connected.");
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
// Display IP address on OLED
display.clearDisplay();
display.setCursor(0,0);
display.println("WiFi connected");
display.print("IP: ");
display.println(WiFi.localIP());
display.display();
}
void loop() {
// Your loop code here. In this example, the loop does not contain additional code.
}