Multiple I2C devices on Arduino: To connect multiple I2C, we have to address each slave device on the I2C bus. I assume you are using the Arduino as master and the other devices as slave. In that case each slave device will have an unique I2C address using which we...
今天我们将学习另一种串行通信协议:I2C(Inter Integrated Circuits)。I2C与SPI相比,I2C只有两根线,SPI使用四根线,I2C可以有多个主从,而SPI只能有一个主和多个从。因此,在一个项目中有多个微控制器需要成为主控,然后使用 I2C。I2C通信一般用于与陀螺仪、加速度计、气压传感器、LED显示屏等进行通信。 在这个ArduinoI2C...
shiftOut(dataPin, clockPin, bitOrder, value) SPI外部IO扩展函数,通常使用带SPI接口的74HC595做8个IO扩展,dataPin为数据口,clockPin为时钟口,bitOrder为数据传输方向(MSBFIRST高位在前,LSBFIRST低位在前),value表示所要传送的数据(0～255),另外还需要一个IO口做74HC595的使能控制。 unsigned longpulseIn(pin, ...
shiftOut(dataPin, clockPin, bitOrder, value) SPI外部IO扩展函数,通常使用带SPI接口的74HC595做8个IO扩展,dataPin为数据口,clockPin为时钟口,bitOrder为数据传输方向(MSBFIRST高位在前,LSBFIRST低位在前),value表示所要传送的数据(0～255),另外还需要一个IO口做74HC595的使能控制。
SPI外部IO扩展函数,通常使用带SPI接口的74HC595做8个IO扩展,把资料传给用来延伸数位输出的暂存器,此函式通常使用在延伸数位的输出。函式使用一个脚位表示资料、一个脚位表示时脉。dataPin为数据口,clockPin为时钟口,bitOrder用来表示位元间移动的方式,为数据传输方向(MSBFIRST高位在前,LSBFIRST低位在前),value会以...
and current. The enumeration name displayed helps to identify all virtual ports running through the Insight Hub. This feature is quite handy when multiple devices are connected. Although the hub features a Wi-Fi-enabled SoC, it doesn’t currently support wireless networking. Each downstream port ...
然后准备一块屏幕,我使用的是一块2.8寸(240*240)的tft屏幕,驱动是ST7789,使用spi通信协议。 二、软件准备这里我使用的是vscode 的PlatformIO插件 新建文件,选择开发板为DOIT ESP32 DEVKIT V1,还有保存路径。 在Libraries这里添加库,我们需要导入TFT_eSPI和TJpg_Decoder两个库,TFT_eSPI是一个功能强大的TFT屏幕驱动...
Arduino is a versatile platform with multiple facets, each serving different roles in the development and deployment of hardware and software for various projects. Below is a breakdown of the different meanings and components associated with Arduino: ...
I wanted to know if it’s possible to send audio to multiple devices at once using the esp32, like synchronizing audio of like 4 bluetooth speakers using the esp32 as the means to send audio from my phone..? Reply Chazim Fikri 3 years ago i haven’t found my esp32 board name...
// Set driver type, fonts to be loaded, pins used and SPI control method etc // // See the User_Setup_Select.h file if you wish to be able to define multiple // setups and then easily select which setup file is used by the compiler. ...