void eeprom_i2c_write(byte address, byte from_addr, byte data) { Wire.beginTransmission(address); Wire.send(from_addr); Wire.send(data); Wire.endTransmission(); } byte eeprom_i2c_read(int address, int from_addr) { Wire.beginTransmission(address); Wire.send(from_addr); Wire.endTransmission...
Arduino EEPROM Example 2: Description: Arduino EEPROM Write & Read Operations–In this tutorial you will learn how to use the Arduino EEPROM at the basic and advanced level. We will cover the extreme basics including storing a string message in the Arduino EEPROM and then reading and erasing ...
// Sends data as an I2C/TWI slave device // Refer to the "Wire Master Reader" 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.onRequest(re...
read 函数用于在 Master Read From Slave 操作后,读取缓存区的数据。 #例程 下面的例程,是我提供给客户的案例程序。程序上传至了 GitHub: https://github.com/TFmini/TFmini-I2C-MasterExample_Arduino 通讯时序如下图所示: 节选代码段: #include <Wire.h> // I2C head file void setup() { // put your...
我们在这里使用的模型只有四个引脚,并使用 I2C 通信协议与 Arduino 通信。有些型号带有额外的RESET引脚。还有其他OLED显示器使用SPI通信进行通信。 引脚接线 由于OLED显示器采用I2C通信协议,因此布线非常简单。您只需要连接到Arduino Uno I2C引脚,如下表所示。 Pin 连接到Arduino Uno Vin 5V GND GND SCL A5 SDA A4...
STM32F103C8T6是一款基于ARM Cortex-M3内核的32位微控制器,具有高性能、低功耗的特点。它内置了高速的64KB Flash存储器和20KB SRAM,支持高速数据传输和处理。同时,STM32F103C8T6还具备丰富的外设接口,包括GPIO、USART、SPI、I2C等,方便与其他外设进行通信和控制。STM32F103C8T6引脚定义 STM32F103C8T6最小系统板...
// Writes data to an I2C/TWI slave device // Refer to the "Wire Slave Receiver" example for use with this // Created 29 March 2006 // This example code is in the public domain. #include <Wire.h> void setup() { Wire.begin(); // join i2c bus (address optional for master) ...
Hardware: Board: ESP32-devkit Core Installation/update date: 1.0.2 IDE name: Arduino IDE Flash Frequency: 40Mhz PSRAM enabled: no Upload Speed: 921600 Computer OS: Windows 10 Description: I have attached a MPU-6050 accelerometer breakout...
write() 写数据,从机向主机或主机向从机 available() 返回通过read()函数得到的字节数 read() 读取一个传送的字节 SetClock() 修改I2C通信的频率,标准值是100KHz onReceive() 注册一个函数,当从机接收到主机的数据时此函数被调用 onRequest() 注册一个函数,当主机向从机请求数据时此函数 被调用 ...
5 Wire.write() 6 Wire.available() 7 Wire.read() 8 Wire.onReceive() 9 Wire.onRequest() Wire.begin() 和 Wire.begin(address) 1. 这里有两种用法: 1.如果调用函数时不带address参数,则设备作为iic主机加入总线通信, 2.如果带参数调用,则设备作为iic从机加入总线通信,同时初始化该设备的iic地址为参数...