// enter the I2C address and the dimensions of your LCD here LiquidCrystal_I2C lcd(0x3F, 16, 2); 完成后,继续尝试草图。 #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x3F,16,2); // set the LCD address to
I2C_1.begin(SDA_1,SCL_1,I2C_Freq); } This way gives you all the freedom you need in your design to assign any GPIO pin to any I2C peripheral of the 2 we’ve got in the ESP32. And we’ll be testing this in the LABs hereafter in this tutorial. ...
but the same code and concepts work for other Arduino development boards also. Firstly,16×2 LCDinterfacing with Arduino will be discussed. After that, we will also provide examples of 16×4 LCD and I2C LCD interfacing with Arduino.
* Gnd ==> Gnd *///LCD config#include<Wire.h>#include<LiquidCrystal_I2C.h>//If you don't have the LiquidCrystal_I2C library, download it and install itLiquidCrystal_I2C lcd(0x3f,20,4);//sometimes the adress is not 0x3f. Change to 0x27 if it dosn't work./* i2c LCD Module ==>...
If you need more EEPROM storage than what is available with your microcontroller, consider using an external I2C EEPROM as described in the Arduino and I2C tutorialpart two. At this point we now understand what sort of data and how much can be stored in our Arduino’s EEPROM. Now it is ...
1.使用的LCD1602必须先焊接到LCD1602 I2C模块 2.I2C模块的SDA(串行数据)和SCL(串行时钟)不可以随便乱接。对于Arduino Uno来说,SDA必须接A4,SCL必须接A5 尽管有这些限制,但无疑,它的确在很大程度上减少了芯片之间的连线。 使用I2C需要遵循I2C协议。一般在Arduino中,通过导入LiquidCrystal_I2C库来完成控制。由于笔者手...
* 通过蓝牙用手机控制 LED,并在 LCD 上显示开关信息 */#include<LiquidCrystal_I2C.h>#include<wire.h>// 设置 LCDLiquidCrystal_I2Clcd(0x27,16,2);// 设置 LED 引脚int led=13;voidsetup(){pinMode(led,OUTPUT);// 将波特率设置为 9600Serial.begin(9600);// LCD 初始化lcd.init();// 打开屏幕背...
With the example code below, you can display the temperature readings on a 16×2 character I2C LCD. Connecting the I2C LCD is very easy as you can see in the wiring diagram below. You can check out my detailed tutorial below for more information.How to control a character I2C LCD with ...
TM1637 4 Digit 7 Segment Display Arduino Tutorial How to use a 16×2 character LCD with Arduino How to control a character I2C LCD with Arduino Supplies Hardware components Software Arduino IDE Makerguides is a participant in affiliate advertising programs designed to provide a means for sites ...
完成一位数据传输,输入也使用同样原理。这样,在至少8次时钟信号的改变(上沿和下沿为一次),就可以完成8位数据的传输。在点对点的通信中,SPI接口不需要进行寻址操作,且为全双工通信,显得简单高效。在多个从设备的系统中,每个从设备需要独立的使能信号,硬件上比I2C系统要稍微复杂一些。