void OnDataSent(const uint8_t *mac_addr, esp_now_send_status_t status) { Serial.print("rnLast Packet Send Status:t"); Serial.println(status == ESP_NOW_SEND_SUCCESS ? "Delivery Success" : "Delivery Fail"); } void
Serial.begin(115200); Serial.println(); ETH.begin(ETH_ADDR, ETH_POWER_PIN, ETH_MDC_PIN, ETH_MDIO_PIN, ETH_TYPE, ETH_CLK_MODE); //启用ETH while(!((uint32_t)ETH.localIP())) //等待获取到IP { } Serial.println("Connected"); Serial.print("IP Address:"); Serial.println(ETH.local...
}voidloop() {//Serial.println("loop:");//RS485.write("1234567890");String serial_data="";/*存放接收到的串口数据*/if(RS485.available()) {intc = RS485.read();/*读取一字节串口数据*/while(c >=0) { serial_data+= (char)c;/*存放到serial_data变量中*/c= RS485.read();/*继续读取...
操作步骤: 1、将examples文件夹复制到lvgl/src文件夹中(本测试并未使用example中的例子,小伙伴们可以自行测试),让该部分能够得到编译。 2、将examples/arduino文件夹中的示例LVGL_Arduino.ino中的内容,复制到main.cpp中,将main.cpp中原有内容全部覆盖,但要保留#include<Arduino.h> 3、此时文件会报错,将第10行#in...
Serial.printf(buf); Serial.flush(); }#endif/* Display flushing */voidmy_disp_flush(lv_disp_drv_t*disp,constlv_area_t*area,lv_color_t*color_p ){uint32_tw = ( area->x2 - area->x1 +1);uint32_th = ( area->y2 - area->y1 +1); ...
HardwareSerial SerialPort(1); // use UART1 void setup() { SerialPort.begin(15200, SERIAL_8N1, 4, 2); } ESP32 to ESP32 Serial Communication Let us see an example of serial communication where the ESP32 master will send either ‘1’ or ‘0’ to the ESP32 slave. The slave will the...
The secondary “lower-deck” board contains the USB-to-serial bridge. Once programming is done, the lower-deck board can be removed. Sample code History: 2017 Oct 18: Video 2017 Oct 23: Submitted and posted to Tindie Pesky Products Kris “onehorse” Winer ESP32 Development Board 4 MiB N...
digitalRead(pin)); } void setup() { // put your setup code here, to run once: pinMode(led, OUTPUT); Serial.begin(9600); Serial.println("from s3nn"); } void loop() { // put your main code here, to run repeatedly: digitalToggle(led); Serial.printf("cur time is %d\n", ...
byte blockDataRead[18]; void setup() { Serial.begin(115200);// Initialize serial communicationwhile (!Serial);// Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4).mfrc522.PCD_Init();// Init MFRC522 board.Serial.println(F("Warning: this example overwrite...
adc.read() 查看所输入引脚的ADC采样结果,可以用手指触摸到该引脚,使ADC得到最大值。 另,如果想直接在win10的ubuntu子系统中使用串口,可以参考官方的说明文档: https://blogs.msdn.microsoft.com/wsl/2017/04/14/serial-support-on-the-windows-subsystem-for-linux/ ...