//Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST); // OPTION 2 lets you interface the display using ANY TWO or THREE PINS, // tradeoff being that performance is not as fast as hardware SPI above. //#define TFT_MOSI 11 // Data out //#define TFT_SCLK 13 // Clo...
常用的SPI引脚为: MOSI = GPIO13 (D7) MISO = GPIO12 (D6) SCLK = GPIO14 (D5) 有一个扩展模式,将普通引脚交换为SPI0硬件引脚。通过在调用SPI.begin()之前调用SPI.pins(6, 7, 8, 0) 来启用此功能。引脚将变为: MOSI = SD1 MISO ...
/* Hardware configuration: Set up nRF24L01 radio on SPI bus plus pins 7 & 8 */ // 指定CE用GPIO7,CSN用GPIO8,需要和接线一致 // 如接线不采用7,8,代码这里需要修改。 RF24 radio(7, 8); byte addresses[][6] = {"1Node","2Node"};// 两个节点名 ...
software ('BitBanged')// SPI and having appropriate defines for PIN_MOSI, PIN_MISO and PIN_SCK.// // IMPORTANT: When using an Arduino that is not 5V tolerant (Due, Zero, ...)// as the programmer, make sure to not expose any of the programmer's pins to 5V.// A simple way to...
#include <MirfHardwareSpiDriver.h> void setup(){ Serial.begin(9600); /* * Setup pins / SPI. */ /* To change CE / CSN Pins: * * Mirf.csnPin = 9; * Mirf.cePin = 7; */ /* Mirf.cePin = 7; Mirf.csnPin = 8; */
* Setup pins / SPI. */ /* To change CE / CSN Pins: * * Mirf.csnPin = 9; * Mirf.cePin = 7; */ /* Mirf.cePin = 7; Mirf.csnPin = 8; */ Mirf.spi = &MirfHardwareSpi; Mirf.init(); /* * Configure reciving address. ...
SPI主要应用于需要短距离、高速串行通信的场景,例如需要快速同步数据的显示屏、SD卡读取器、加速度传感器等。 可以将SPI想象成一种精密的对话方式,其中主设备(ESP32)和 从设备(传感器、显示屏等)在共同的时钟引导下,按照特定的规则交流信息。 在SPI通信中,通常有四个信号线: ...
Arduino UNO B: SPI 从机 连线方式：A---B (10) SS--->(10) SS (11) MOSI--->(11) MOSI...
(recommended) is to use the HARDWARE SPI pins, which are unique// to each board and not reassignable. For Arduino Uno: MOSI = pin 11 and// SCLK = pin 13. This is the fastest mode of operation and is required if// using the breakout board's microSD card.// For 1.44" and 1.8"...
Arduino Uno开发板具有多个引脚,这些引脚分为数字引脚和模拟引脚,用于连接和控制外部设备。以下是Arduino Uno引脚的详细定义: 数字引脚 (Digital Pins): D0 to D13: 这些是数字输入/输出引脚,可以用于数字输入或输出。 D0(RX)和D1(TX): 用于串行通信(UART)。