Example code for talking to aTMP102I2C thermometer, like those available from Sparkfun, for example. Rather heavily based on some code I found in the forums, some samples, and a bit of personal investigation to
There are both 7- and 8-bit versions of I2C addresses. 7 bits identify the device, and the eighth bit determines if it's being written to or read from. The Wire library uses 7 bit addresses throughout. If you have a datasheet or sample code that uses 8 bit address, you'll want t...
// Receives data as an I2C/TWI slave device // Refer to the "Wire Master Writer" example for use with this // Created 29 March 2006 // This example code is in the public domain. #include <Wire.h> void setup() { Wire.begin(8); // join i2c bus with address #8 Wire.onReceive(...
ESP32 I2C Scanner – Arduino Code Example The code example down below does the following: We start with defining initializing the I2C peripheral. And we’ll also initialize a serial UART communication to print back the results to the PC serial terminal (Arduino Monitor). ...
Documentation|Example Supported Hardware Classic Boards Arduino Uno R3 Arduino Mega 2560 Arduino Leonardo Arduino Due Arduino Micro Arduino Mega-ADK Arduino Uno R4 WiFi Arduino Uno Minima Nano Boards Arduino Nano 3.0 Arduino Nano 33 IoT Arduino Nano 33 BLE Sense ...
Note the above code snippet. Press S1 LED1 turns on and stays on. Press S2 and LED1 turns off and stays off. (This could also be a motor control for example.) In each case pressing S1 or S2 returns a 1 or 0; the "if" command does the rest. Another note is the () must be...
// This example code is in the public domain. #include <Wire.h> void setup() { Wire.begin(); // join i2c bus (address optional for master) Serial.begin(9600); // start serial for output } void loop() { Wire.requestFrom(8, 6); // request 6 bytes from slave device #8 ...
Open the code directly by the path: File -> Example ->Arduino_Software_I2C-master->SoftwareI2C_Scan.#include "SoftwareI2C.h"SoftwareI2C softwarei2c;void setup(){ Serial.begin(115200); softwarei2c.begin(3, 2); // sda, scl Serial.println("begin to scan...");}void loop(){ for(unsigne...
将LiquidCrystal_I2C 库拷到arduino IDE 下的 libraries 目录下。 LCD显示程序demo // 湖南创乐博智能科技有限公司 // include the library code #include <Wire.h> #include <LiquidCrystal_I2C.h> /***/ char array1[]=" Arduino "; //the string to print on the LCD char array2[]=...
SCL --- I2C 时钟线(接A5) (可以看到模块后面有一个U2芯片,就是用来稳压的) 下载安装最新库 https://learn.adafruit.com/monoc... ibrary-and-examples 其中OLED模块的专用库名称是SSD1306,另外需要配合图形库GFX操作 不建议使用NB的U8glib,因为这个库强大到哭,所以编译和下载都太消耗时间了。 将这些...