附加LCD1602：
LCD 1602的连接与使用
mixly中的简化代码：
- 电路连接图
1
table
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实物图
实物图
程序图
#include <LiquidCrystal.h>
LiquidCrystal mylcd(12,11,5,4,3,2);
void setup(){
mylcd.begin(16,2);
mylcd.display();
}
void loop(){
mylcd.setCursor(0, 0);
mylcd.print("HELLO");
mylcd.setCursor(0, 1);
mylcd.print("WORLD");
}
#include <LiquidCrystal.h> //Load Liquid Crystal Library
LiquidCrystal LCD(10, 9, 5, 4, 3, 2); //Create Liquid Crystal Object called LCD
int myCounter=0; //declare your variable myCounter and set to 0
void setup() {
LCD.begin(16,2); //Tell Arduino to start your 16 column 2 row LCD
LCD.setCursor(0,0); //Set LCD cursor to upper left corner, column 0, row 0
LCD.print("My Timer:"); //Print Message on First Row
}
void loop() {
for (myCounter=1; myCounter<=10; myCounter=myCounter+1) {
LCD.setCursor(0,1); //Go to 1st column(column 0) and 2nd row(row 1)
LCD.print(myCounter);
LCD.print(" Seconds");
delay(1000);
}
for (myCounter=10;myCounter>=0;myCounter=myCounter-1) {
LCD.setCursor(0,1); //Go to 1st column(column 0) and 2nd row(row 1)
LCD.print(myCounter);
LCD.print(" Seconds");
delay(1000);
}
}
scoot 溜走 scoot back
vexing problem 烦恼问题
#include <LiquidCrystal.h> //Load Liquid Crystal Library
LiquidCrystal LCD(10, 9, 5, 4, 3, 2); //Create Liquid Crystal Object called LCD
int myCounter=0; //declare your variable myCounter and set to 0
void setup() {
LCD.begin(16,2); //Tell Arduino to start your 16 column 2 row LCD
LCD.setCursor(0,0); //Set LCD cursor to upper left corner, column 0, row 0
LCD.print("My Timer:"); //Print Message on First Row
}
void loop() {
for (myCounter=1; myCounter<=10; myCounter=myCounter+1) {
LCD.setCursor(0,1); //Go to 1st column(column 0) and 2nd row(row 1)
LCD.print(" "); //Print blanks to clear the row
LCD.setCursor(0,1); //Go to 1st column(column 0) and 2nd row(row 1)
LCD.print(myCounter);
LCD.print(" Seconds");
delay(1000);
}
for (myCounter=10;myCounter>=0;myCounter=myCounter-1) {
LCD.setCursor(0,1); //Go to 1st column(column 0) and 2nd row(row 1)
LCD.print(" "); //Print blanks to clear the row
LCD.setCursor(0,1); //Go to 1st column(column 0) and 2nd row(row 1)
LCD.print(myCounter);
LCD.print(" Seconds");
delay(1000);
}
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连接图2
连接图
正极
程序
colo
https://detail.tmall.com/item.htm?spm=a230r.1.14.6.99da4c6aPUWRL5&id=530432143336&cm_id=140105335569ed55e27b&abbucket=10
trigger
int trigPin=13; //Sensor Trip pin connected to Arduino pin 13
int echoPin=11; //Sensor Echo pin connected to Arduino pin 11
float pingTime;
float speedOfSound;
int targetDistance=6; //Distance to Target in inches
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(trigPin, LOW); //Set trigger pin low
delayMicroseconds(2000); //Let signal settle
digitalWrite(trigPin, HIGH); //Set trigPin high
delayMicroseconds(10); //Delay in high state
digitalWrite(trigPin, LOW); //ping has now been sent
pingTime = pulseIn(echoPin, HIGH); //pingTime is presented in microceconds
speedOfSound = (targetDistance*2)/pingTime*(1000000)*3600/63360; //converts to miles per hour
Serial.print("The Speed of Sound is: ");
Serial.print(speedOfSound);
Serial.println(" miles per hour");
delay(1000);
}
项目---》加载库---》管理库
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