Arduino 连接扬声器喇叭,温湿度传感器,声音传感器并局部刷新ILI9486 LCD,LED

 
最近玩Arduino时,有一块ILI9486错都LCD屏,它没有局部刷新功能,所以就把背景设置为黑色,然后用变量记住光标的位置,用设置文字颜色为黑色的方法在原位置重新显示相同的字符,这样旧的数据就消失了,然后再改文字的颜色为绿色重新显示新的值。效果不错,完全满足局部刷新
的效果,分享给大家。希望可以帮助到你。

#include <MCUFRIEND_kbv.h>
#include <Adafruit_GFX.h>  // Core graphics library


// wiring with UNO or Mega2560:
//--------------POWER Pins--------------------------------
//   5V  connects to DC 5V
//   GND connects to Ground
//   3V3 do not need to connect(NC)
//--------------LCD Display Pins--------------------------
//   LCD_RD   connects to Analog pin A0
//   LCD_WR   connects to Analog pin A1
//   LCD_RS   connects to Analog pin A2
//   LCD_CS   connects to Analog pin A3
//   LCD_RST  connects to Analog pin A4
//   LCD_D0   connects to digital pin 8
//   LCD_D1   connects to digital pin 9
//   LCD_D2   connects to digital pin 2
//   LCD_D3   connects to digital pin 3
//   LCD_D4   connects to digital pin 4
//   LCD_D5   connects to digital pin 5
//   LCD_D6   connects to digital pin 6
//   LCD_D7   connects to digital pin 7
//--------------SD-card fuction Pins ----------------------
//This Connection Only for UNO, Do not support Mega2560
//because they use different Hardware-SPI Pins
//SD_SS    connects to digital pin 10
//SD_DI    connects to digital pin 11
//SD_DO    connects to digital pin 12
//SD_SCK   connects to digital pin 13

#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <DHT_U.h>
#define DHTTYPE DHT11  // DHT 11
#define DHTPIN 11
DHT_Unified dht(DHTPIN, DHTTYPE);
uint32_t delayMS;

int voice = A7;
const int BEEPPIN = 22;
#define LCD_RESET A4  // Can alternately just connect to Arduino's reset pin
#define LCD_CS A3     // Chip Select goes to Analog 3
#define LCD_CD A2     // Command/Data goes to Analog 2
#define LCD_WR A1     // LCD Write goes to Analog 1
#define LCD_RD A0     // LCD Read goes to Analog 0

// Assign human-readable names to some common 16-bit color values:
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
float TemperatureOld = 00;
float HumidityOld = 00;
int VoiceOld = 0;

int locationX5 = -100;
int locationY5 = -100;

MCUFRIEND_kbv tft;

void setup() {
  pinMode(BEEPPIN, OUTPUT);
  digitalWrite(BEEPPIN, HIGH);

  delay(100);
  digitalWrite(BEEPPIN, LOW);
  delay(100);

  pinMode(voice, INPUT);
  dht.begin();
  sensor_t sensor;
  delayMS = sensor.min_delay / 1000;

  Serial.begin(9600);
  Serial.println(F("Temperature and Humidity Test Starting..."));

  tft.fillScreen(BLACK);
  tft.setCursor(0, 0);
  tft.println();
  tft.setTextColor(GREEN);
  tft.setTextSize(2);
  tft.reset();

  uint16_t identifier = tft.readID();
  tft.begin(0x9486);
  tft.fillScreen(BLACK);
}

void loop(void) {
  tft.setTextColor(GREEN);
  int valVoice = analogRead(voice);
  //tft.fillScreen(BLACK);
  tft.setCursor(5, 0);
  sensors_event_t event;
  dht.temperature().getEvent(&event);
  tft.println();
  tft.print(F("Temperature: "));
  tft.setTextColor(BLACK);
  int locationX = tft.getCursorX();
  int locationY = tft.getCursorY();
  tft.print(TemperatureOld);
  tft.setTextColor(GREEN);
  tft.setCursor(locationX, locationY);
  tft.print(event.temperature);
  TemperatureOld = event.temperature;
  tft.println(F(" C"));
  dht.humidity().getEvent(&event);
  tft.println();
  tft.print(F("Humidity: "));
  tft.setTextColor(BLACK);
  int locationX2 = tft.getCursorX();
  int locationY2 = tft.getCursorY();
  tft.print(HumidityOld);
  tft.setTextColor(GREEN);
  tft.setCursor(locationX2, locationY2);
  tft.print(event.relative_humidity);
  tft.println(F(" %"));
  HumidityOld = event.relative_humidity;

  tft.println();
  tft.print("Voice Value = ");
 
  int locationX3 = tft.getCursorX();
  int locationY3 = tft.getCursorY();
    tft.setCursor(locationX3, locationY3);
    tft.setTextColor(BLACK);
    tft.print(VoiceOld);
    tft.setCursor(locationX3, locationY3);
    tft.setTextColor(GREEN);
  tft.print(valVoice);
  Serial.print(analogRead(voice));
  VoiceOld = valVoice;
  if (valVoice == 1023) {
    tft.println();
    tft.setCursor(5, 150);
    tft.print("BEEP is =");
    locationX5 = tft.getCursorX();
    locationY5 = tft.getCursorY();
    tft.setCursor(locationX5, locationY5);
    tft.setTextColor(BLACK);
    tft.print(" OFF ");
    tft.setTextColor(GREEN);
    tft.setCursor(locationX5, locationY5);
    tft.print(" ON ");
    digitalWrite(BEEPPIN, LOW);
    delay(50);
  }
  digitalWrite(BEEPPIN, HIGH);
  tft.setCursor(locationX5, locationY5);
  tft.setTextColor(BLACK);
  tft.print(" ON ");
  delay(300);
  tft.setCursor(locationX5, locationY5);
  tft.setTextColor(GREEN);
  tft.print(" OFF ");
  delay(3000);
  tft.flush();
    tft.setTextColor(GREEN);
 
}


posted @ 2022-12-01 12:25  商君治国安邦之张莽  阅读(364)  评论(0编辑  收藏  举报