refs #

Arduino UNO R4 MINIMA

UNO_R4_MINIMA/example/Lesson_10_Photoresistor/Lesson_10_Photoresistor.ino

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+//2024.3.5
+const int analogInPin = A1;  //光敏电阻模拟输入引脚 The photoresistor mimics the input pin
+int Lightvalue = 0;          //定义变量 Defining variables
+
+void setup() {
+  Serial.begin(9600);        //初始化串口波特率 Initialize the serial port baud rate
+  pinMode(analogInPin,INPUT);
+}
+
+void loop() {
+  Lightvalue = analogRead(analogInPin);  //读取光敏度的值 Read the value of light sensitivity
+  Serial.print("Lightvalue = ");         //通过串口打印光敏度的值 Print the value of light sensitivity through the serial port
+  Serial.println(Lightvalue);
+  delay(200);
+}

UNO_R4_MINIMA/example/Lesson_11_Ultrasonic_ranging_OLED_display/Lesson_11_Ultrasonic_ranging_OLED_display.ino

@@ -0,0 +1,58 @@
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+
+#define SCREEN_WIDTH 128  // 定义屏幕宽度为128像素 Define the screen width to be 128 pixels
+#define SCREEN_HEIGHT 64  // 定义屏幕高度为64像素 Define the screen height to be 64 pixels
+#define OLED_RESET -1     // 定义 OLED 复位引脚为-1（如果不使用复位功能，则设置为-1） Define the OLED reset pin to -1 (or -1 if the reset function is not used)
+// 创建 Adafruit_SSD1306 对象，用于控制 OLED 屏幕，指定屏幕宽度、高度、I2C 总线对象和复位引脚
+// Create an Adafruit_SSD1306 object that controls the OLED screen, specifying the screen width, height, I2C bus object, and reset pin
+Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+
+#define Echo 6      //定义超声波Echo引脚 Define the ultrasonic Echo pin
+#define Trig 5      //定义超声波Trig引脚 Define the ultrasonic Trig pin
+int Udistance = 0;  //定义超声波距离变量 Define the ultrasonic distance variable
+
+void setup() {
+  Serial.begin(9600);
+  pinMode(Echo, INPUT);   //定义引脚工作模式为输入 Define the pin operation mode as the input
+  pinMode(Trig, OUTPUT);  //定义引脚工作模式为输出 Define the pin operation mode as output
+  Wire.begin();           //初始化 I2C 总线 SDA引脚设置为A4，SCL引脚设置为A5 The initial I2C bus SDA pin is set to A4 and the SCL pin is set to A5
+
+  // 初始化屏幕 Initializing the screen
+  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
+    Serial.println(F("SSD1306 initialization failed"));
+    for (;;)
+      ;
+  }
+}
+
+void loop() {
+  Udistance = GetDistance();  // 获取超声波距离 Obtaining ultrasonic distance
+  display.clearDisplay();     // 清空屏幕缓冲区 Clear the screen buffer
+  //显示超声波距离 Display ultrasonic distance
+  display.setTextSize(2);
+  display.setTextColor(SSD1306_WHITE);
+  display.setCursor(16, 8);
+  display.println("Distance");
+  display.setCursor(32, 40);
+  display.print(Udistance);
+  display.print(" cm");
+  display.display();
+  //delay(200);  // 延迟一段时间再进行下一次读取 Delay the next read for a while to adjust the update rate
+  //Serial.print("Distance = ");
+  //Serial.println(Udistance);
+}
+
+float GetDistance()  //获取超声波传感器数值 Get ultrasonic sensor values
+{
+  float distance;
+  digitalWrite(Trig, LOW);  //发送一个低电平到Trig触发测距 Sending a low level to the Trig triggers ranging
+  delayMicroseconds(2);
+  digitalWrite(Trig, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(Trig, LOW);
+  distance = pulseIn(Echo, HIGH) / 58.00;  //输出距离转换 Output distance conversion
+  //delay(10);
+  return distance;
+}

UNO_R4_MINIMA/example/Lesson_12_DHT11_OLED_display/Lesson_12_DHT11_OLED_display.ino

@@ -0,0 +1,48 @@
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+#include <DHT.h>
+
+#define SCREEN_WIDTH 128  // 定义屏幕宽度为128像素 Define the screen width to be 128 pixels
+#define SCREEN_HEIGHT 64  // 定义屏幕高度为64像素 Define the screen height to be 64 pixels
+#define OLED_RESET -1     // 定义 OLED 复位引脚为-1（如果不使用复位功能，则设置为-1） Define the OLED reset pin to -1 (or -1 if the reset function is not used)
+// 创建 Adafruit_SSD1306 对象，用于控制 OLED 屏幕，指定屏幕宽度、高度、I2C 总线对象和复位引脚
+// Create an Adafruit_SSD1306 object that controls the OLED screen, specifying the screen width, height, I2C bus object, and reset pin
+Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+
+#define DHTPIN 4           // DHT11传感器连接到Arduino的数字引脚4 The DHT11 sensor is connected to digital pin 4 of the Arduino
+#define DHTTYPE DHT11      // 使用DHT11传感器 The DHT11 sensor was used
+DHT dht(DHTPIN, DHTTYPE);  // 创建 DHT 对象，用于连接 DHT 传感器，指定传感器引脚和传感器型号 Create DHT objects for connecting DHT sensors, specifying sensor pins and sensor models
+
+void setup() {
+  Serial.begin(9600);
+  Wire.begin();  //初始化 I2C 总线 SDA引脚设置为A4，SCL引脚设置为A5 The initial I2C bus SDA pin is set to A4 and the SCL pin is set to A5
+
+  // 初始化 OLED 屏幕 Initializing the screen
+  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
+    Serial.println(F("SSD1306 initialization failed"));
+    for (;;)
+      ;
+  }
+  display.clearDisplay();  // 清空屏幕缓冲区 Clear the screen buffer
+  dht.begin();             // 初始化 DHT11 传感器 Initialize the DHT11 sensor
+}
+
+void loop() {
+  // 读取温湿度数据 Read the temperature and humidity data
+  int humidity = dht.readHumidity();
+  int temperature = dht.readTemperature();
+  display.clearDisplay();// 清空屏幕缓冲区 Clear the screen buffer
+  // 显示温湿度数据 Display temperature and humidity data
+  display.setTextSize(1);
+  display.setTextColor(SSD1306_WHITE);
+  display.setCursor(16, 20);
+  display.print("Temperature: ");
+  display.println(temperature);
+  display.setCursor(16, 40);
+  display.print("Humidity: ");
+  display.print(humidity);
+  display.println("%");
+  display.display();// 更新显示
+  delay(2000);  // 延迟2秒再进行下一次读取
+}

UNO_R4_MINIMA/example/Lesson_13_Infrared_change_RGB/Lesson_13_Infrared_change_RGB.ino

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+#include <IRremote.hpp>
+#include <FastLED.h>
+
+//设定三个按键的红外信号值 Set the infrared signal value of the three keys
+#define NUM1 0xF30CFF00        //number 1
+#define NUM2 0xE718FF00        //number 2
+#define NUM3 0xA15EFF00        //number 3
+#define IR_RECEIVE_PIN A2      //定义红外接收器的引脚 Define the pins of the infrared receiver
+
+#define LED_PIN 7              //定义WS2812B RGB灯引脚  Define the WS2812B RGB lamp pin
+#define NUM_LEDS 12            //定义灯珠数量  Define the number of beads
+#define BRIGHTNESS 5           //定义灯光亮度  Defining the brightness of the light
+#define FRAMES_PER_SECOND 120  //定义每秒帧数  Defines frames per second
+CRGB leds[NUM_LEDS];           //定义一个长度为 NUM_LEDS 的 CRGB 类型数组，用于控制 WS2812B LED 条  A CRGB type array of length NUM_LEDS is defined to control WS2812B LED strips
+static uint8_t hue = 0;        //设置颜色的值  Sets the value of the color
+int Color = 1;                 //定义灯光颜色模式的变量  A variable that defines the color pattern of the light
+
+void setup() {
+  Serial.begin(9600);
+  IrReceiver.begin(IR_RECEIVE_PIN, ENABLE_LED_FEEDBACK);   //启用红外接收功能  Enable infrared receiver function
+  FastLED.addLeds<WS2812B, LED_PIN, GRB>(leds, NUM_LEDS);  //使用FastLED库将LED条上的LED添加到控制器中  The LED on the LED strip is added to the controller using the FastLED library
+  FastLED.setBrightness(BRIGHTNESS);                       //设置灯光亮度  Set the light brightness
+  pinMode(LED_PIN, OUTPUT);                                //定义7引脚为输出模式  Pin 7 is defined as the output mode
+  digitalWrite(LED_PIN, LOW);                              //设定7引脚为低电平输出  Set pin 7 for low output
+}
+
+void loop() {
+  if (IrReceiver.decode()) {
+    // Serial.println(IrReceiver.decodedIRData.decodedRawData, HEX);  //打印“旧的”原始数据  Print the "old" raw data
+    // IrReceiver.printIRResultShort(&Serial);                        //在一行中打印完整的接收数据  Print the complete received data on one line
+    // IrReceiver.printIRSendUsage(&Serial);                          //打印发送此数据所需的语句  Print the statements needed to send this data
+    if (IrReceiver.decodedIRData.decodedRawData == NUM1) {
+      Color = 1;  //如果按下按键1，颜色模式为红 If key 1 is pressed, the color mode is red
+    } else if (IrReceiver.decodedIRData.decodedRawData == NUM2) {
+      Color = 2;  //如果按下按键2，颜色模式为绿 If key 1 is pressed, the color mode is green
+    } else if (IrReceiver.decodedIRData.decodedRawData == NUM3) {
+      Color = 3;  //如果按下按键3，颜色模式为蓝 If key 1 is pressed, the color mode is blue
+    }
+    IrReceiver.resume();  // 等下接收下一个值 Wait to receive the next value
+  }
+
+  for (int i = 0; i < NUM_LEDS; i++) {
+    // 根据颜色值设置LED的颜色
+    if (Color == 1) {
+      leds[i] = CHSV(hue, 255, 255);        // 设置为红色 set it to red
+    } else if (Color == 2) {
+      leds[i] = CHSV(hue + 85, 255, 255);   // 设置为绿色 set it to green
+    } else if (Color == 3) {
+      leds[i] = CHSV(hue + 170, 255, 255);  // 设置为蓝色 set it to blue
+    }
+    FastLED.show();// 显示LED的颜色 Displays the color of the LED
+    FastLED.delay(2 / FRAMES_PER_SECOND);// 延迟以控制帧率 Delay to control the frame rate
+  }
+}

UNO_R4_MINIMA/example/Lesson_1_Arduino IDE/0_Arduino software/Arduino IDE Download Link.txt

@@ -0,0 +1 @@
+https://www.arduino.cc/en/software

UNO_R4_MINIMA/example/Lesson_2_Light_up_the_LED/Lesson_2_Light_up_the_LED.ino

@@ -0,0 +1,20 @@
+/*
+  Lesson_2_Light_up_the_LED
+
+  点亮L灯  Light the L lamp
+
+  Connect the motherboard to the computer using the Type-C line, 
+  complete the code upload, and observe the L light on the motherboard.
+
+*/
+
+#define LED 12  //定义LED灯输出引脚 Define the LED lamp output pin
+void setup() {
+  pinMode(LED, OUTPUT);    //定义引脚的工作模式 Define the operation mode of the pin
+  digitalWrite(LED, LOW);  //输出低电平 Output low level
+}
+
+void loop() {
+  //因为LED灯负极已经连接到GND，只需要输出高电平即可运行点亮LED灯 The output high level can be run to light the LED lamp
+  digitalWrite(LED, HIGH);
+}

UNO_R4_MINIMA/example/Lesson_3_Button_control_LED/Lesson_3_Button_control_LED.ino

@@ -0,0 +1,29 @@
+//2024.3.5
+#define LED 12    //定义LED2引脚
+#define button 9  //定义按键信号引脚
+int key_ok = 0;   //定义项目所需的数据变量
+int LED_en = 0;
+void setup() {
+  Serial.begin(9600);
+  pinMode(button, INPUT);  //设置按键引脚为输入
+  pinMode(LED, OUTPUT);    //设置按键引脚为输入
+}
+
+void loop() {
+  //  判断是否有按钮被按下，读取按钮的电平
+  if (digitalRead(button)) {
+    if (key_ok)  //判断按钮是否被按下
+    {
+      key_ok = 0;
+      if (LED_en) LED_en = 0;  //确定最后一个标志位是否建立
+      else LED_en = 1;
+    }
+  } else {
+    delay(20);  //延时20毫秒
+    if (!digitalRead(button)) key_ok = 1;
+  }
+
+  //当按下按键时，LED灯输出引脚的电平反转
+  if (LED_en) digitalWrite(LED, HIGH);
+  else digitalWrite(LED, LOW);
+}

UNO_R4_MINIMA/example/Lesson_4_active_buzzer/Lesson_4_active_buzzer.ino

@@ -0,0 +1,12 @@
+//2024.3.5
+#define Buzzer 8                //定义有源蜂鸣器引脚 Define the active buzzer pin
+void setup() {
+  pinMode(Buzzer, OUTPUT);      //定义引脚为输出工作模式  Define the pin as the output working mode
+}
+
+void loop() {
+  digitalWrite(Buzzer, HIGH);   //输出高电平，蜂鸣器响 Output high level, buzzer goes off
+  delay(500);
+  digitalWrite(Buzzer, LOW);    //输出低电平，蜂鸣器不响 The output is low and the buzzer does not sound
+  delay(500);
+}

UNO_R4_MINIMA/example/Lesson_5_Traffic_light/Lesson_5_Traffic_light.ino

@@ -0,0 +1,55 @@
+//2024.3.6
+
+#define Green 12   //定义绿色灯引脚 Define the green light pin
+#define Yellow 11  //定义黄色灯引脚 Define the yellow light pin
+#define red 10     //定义绿色灯引脚 Define the green light pin
+
+void setup() {
+  // 定义引脚为输出工作模式 Define the pin as the output working mode
+  pinMode(Green, OUTPUT); 
+  pinMode(Yellow, OUTPUT);
+  pinMode(red, OUTPUT);   
+}
+
+void loop() {
+  digitalWrite(Green, HIGH);  //点亮绿色灯 Turn on the green light
+  digitalWrite(Yellow, LOW);  //熄灭黄色灯 Put out the yellow light
+  digitalWrite(red, LOW);     //熄灭红色灯 Turn off the red light
+  delay(5000);                //让绿灯亮五秒钟 Turn on the green light for five seconds
+
+  //绿灯每500毫秒闪烁一次 The green light flashes every 500 milliseconds
+  digitalWrite(Green, HIGH);
+  delay(500);
+  digitalWrite(Green, LOW);
+  delay(500);
+  digitalWrite(Green, HIGH);
+  delay(500);
+  digitalWrite(Green, LOW);
+  delay(500);
+  digitalWrite(Green, HIGH);
+  delay(500);
+
+  //黄灯亮1秒 The yellow light is on for 1 second
+  digitalWrite(Green, LOW);
+  digitalWrite(Yellow, HIGH);
+  digitalWrite(red, LOW);
+  delay(1200);
+
+  //红灯亮5秒钟 The red light stays on for 5 seconds
+  digitalWrite(Green, LOW);
+  digitalWrite(Yellow, LOW);
+  digitalWrite(red, HIGH);
+  delay(5000);
+
+  //红灯每500毫秒闪烁一次 The red light flashes every 500 milliseconds
+  digitalWrite(red, HIGH);
+  delay(500);
+  digitalWrite(red, LOW);
+  delay(500);
+  digitalWrite(red, HIGH);
+  delay(500);
+  digitalWrite(red, LOW);
+  delay(500);
+  digitalWrite(red, HIGH);
+  delay(500);
+}

UNO_R4_MINIMA/example/Lesson_6_Flow_light/Lesson_6_Flow_light.ino

@@ -0,0 +1,28 @@
+//2024.3.6
+
+#define Green 12   //定义绿色灯引脚
+#define Yellow 11  //定义黄色灯引脚
+#define red 10     //定义绿色灯引脚
+void setup() {
+  //定义引脚为输出工作模式
+  pinMode(Green, OUTPUT);   //绿色灯
+  pinMode(Yellow, OUTPUT);  //黄色灯
+  pinMode(red, OUTPUT);     //红色灯
+}
+
+void loop() {
+  digitalWrite(Green, HIGH);  //点亮绿色灯
+  digitalWrite(Yellow, LOW);  //熄灭黄色灯
+  digitalWrite(red, LOW);     //熄灭红色灯
+  delay(200);                 //让绿灯亮200毫秒
+
+  digitalWrite(Green, LOW);   //熄灭绿色灯
+  digitalWrite(Yellow, HIGH); //点亮黄色灯
+  digitalWrite(red, LOW);     //熄灭红色灯
+  delay(200);                 //让黄灯亮200毫秒
+
+  digitalWrite(Green, LOW);   //熄灭绿色灯
+  digitalWrite(Yellow, LOW);  //熄灭黄色灯
+  digitalWrite(red, HIGH);    //点亮红色灯
+  delay(200);                 //让红灯亮200毫秒
+}

UNO_R4_MINIMA/example/Lesson_7_WS2812B/Lesson_7_WS2812B.ino

@@ -0,0 +1,20 @@
+#include <FastLED.h>    //声明FastLED库 Declare the FastLED library
+
+#define LED_PIN 7       //定义WS2812 RGB灯引脚 Define the WS2812 RGB lamp pin
+#define NUM_LEDS 12     //定义灯珠数量 Define the number of beads
+#define BRIGHTNESS 64   //设定灯光亮度，范围0~255,数字越大越亮 Set the light level from 0 to 255, with the higher the light
+CRGB leds[NUM_LEDS];    //实例化一个长度为 NUM_LEDS 的 CRGB 类型数组，用于控制WS2812B LED灯条 An array of CRGB type with length NUM_LEDS is instantiated to control the WS2812B LED strip
+void setup() {
+  FastLED.addLeds<NEOPIXEL, LED_PIN>(leds, NUM_LEDS);  //使用NEOPIXEL类型 Use the NEOPIXEL type
+  FastLED.setBrightness(BRIGHTNESS);                   //初始化灯光亮度 Initialize the light level
+}
+
+void loop() {
+  //逐个点亮LED显示绿色 Light the leds one by one to show green
+  for (int i = 0; i < NUM_LEDS; i++) {
+    fill_solid(leds, NUM_LEDS, CRGB::Black);  //将所有LED关闭 Turn off all leds
+    leds[i] = CRGB::Green;                    //仅点亮当前LED Light only the current LED
+    FastLED.show();
+    delay(100);
+  }
+}

UNO_R4_MINIMA/example/Lesson_8_Gradient_RGB_light/Lesson_8_Gradient_RGB_light.ino

@@ -0,0 +1,21 @@
+//2024.3.6
+#include <FastLED.h>
+
+#define LED_PIN 7      //定义WS2812 RGB灯引脚
+#define NUM_LEDS 12    //定义灯珠数量
+#define BRIGHTNESS 64  //设定灯光亮度，范围0~255,数字越大越亮
+CRGB leds[NUM_LEDS];   //定义一个长度为 NUM_LEDS 的 CRGB 类型数组，用于控制 WS2812B LED 条
+
+void setup() {
+  FastLED.addLeds<NEOPIXEL, LED_PIN>(leds, NUM_LEDS);  //使用NEOPIXEL类型
+  FastLED.setBrightness(BRIGHTNESS);                   //初始化灯光亮度
+}
+
+void loop() {
+  //渐变显示不同颜色 Gradients display different colors
+  for (int hue = 0; hue < 255; hue++) {
+    fill_rainbow(leds, NUM_LEDS, hue, 8);
+    FastLED.show();
+    delay(20);
+  }
+}

UNO_R4_MINIMA/example/Lesson_9_Steering_gear_control/Lesson_9_Steering_gear_control.ino

@@ -0,0 +1,23 @@
+#include <Servo.h>
+#define SERVO_PIN A0  //将舵机信号线连接到UNOR4 MINIMA的A0 Connect the servo signal line to A0 of UNOR4 MINIMA
+Servo myServo;        //实例化一个舵机对象 Instantiate a steering gear object
+
+void setup() {
+  pinMode(SERVO_PIN, OUTPUT);  //将舵机连接的引脚设为输出模式 Set the servo connected pin to output mode
+  myServo.attach(SERVO_PIN);   //设置舵机对象 Set the steering gear object
+}
+
+void loop() {
+  //让舵机从180度转到0度 Let the steering gear turn from 180 to 0 degrees
+  for (int angle = 180; angle >= 0; angle--) {
+    myServo.write(angle);
+    delay(5);
+  }
+  
+  //让舵机从0度转到180度 Let the steering gear turn from 0 to 180 degrees
+  for (int angle = 0; angle <= 180; angle++) {
+    myServo.write(angle);
+    delay(5);  //等待一小段时间，使舵机有足够的时间运动到下一个角度
+  }
+
+}