ESP32-0.96寸OLED作为BLE Client与ESP32-BME280 BLE Server通信 总结 简介 两个ESP32开发板,一个ESP32挂载一个BME280传感器读取温湿度值并通过BLE低功耗蓝牙GATT协议发送数据,另一个ESP32通过BLE低功耗蓝牙与ESP32-BME280建立连接并在0.96寸OLED显示出BME280的温湿度值, ESP32-BME280作为
// initialize serial communication at 115200 bits per second: Serial.begin(115200); //set the resolution to 12 bits (0-4096) analogReadResolution(12); } void loop() { // read the analog / millivolts value for pin 2: int analogValue = analogRead(1); int analogVolts = analogReadMilliVo...
BluetoothSerial SerialBT; Now that we have our Bluetooth object, we need to initialize the Bluetooth stack, so other devices can see our ESP32 and pair with it, before initializing the serial communication. To do so, we simply need to call the begin method of the BluetoothSerial object, ...
一、硬件准备Arduino ESP8266/ESP32开发板多路DS18B20温度传感器杜邦线若干面包板电源适配器二、硬件连接将...
(400, true); #endif // initialize serial communication // (38400 chosen because it works as well at 8MHz as it does at 16MHz, but // it's really up to you depending on your project) Serial.begin(38400); // initialize device Serial.println("Initializing I2C devices..."); accelgyro...
ESP32-C3 系列芯片,搭载 RISC-V 32 位单核处理器。不过可以跑多线程,下面就是两个线程。程序中避免有过多的延迟函数😘😘😘 6.1 源码分享 int testdata0 = 10;int testdata1 = 0;void CpuLoop(void *pvParameters){while(1){Serial.println("cpu1 "+String(testdata0));testdata1 ++;if(testdata...
a = arduino(port,board) creates a connection to Arduino or Arduino-compatible ESP32 hardware on the specified serial port. The serial port can be a USB serial port. example a = arduino(___,Name,Value) creates a connection with additional options specified by one or more Name,Value pair ...
BOOT(IO09)管脚上电前不能下拉,ESP32会进入下载模式。 使用到IO08管脚进行设计,不建议外部直接下拉,因为在下载烧录时,IO08管脚为低电平,不能使用串口进行下载。 IO12(GPIO12)、IO13(GPIO13)在QIO模式下为SPI信号SPIHD和SPIWP复用,为了增加可用GPIO数量,开发板选择采用2线SPI的DIO模式,IO12、IO13并未连接flas...
The tests were performed using a DFRobot’s ESP32 module device integrated in a ESP32 development board. Introduction The objective of this post is to explain how to use FreeRTOS queues to achieve inter task communication, using the Arduino core. Besides communication amongst tasks, queues also...
The Arduino Nano ESP32 (with and without headers) is a Nano form factor board based on the ESP32-S3 (embedded in the NORA-W106-10B from u-blox®). This is the first Arduino board to be based fully on an ESP32,and features Wi-Fi®, Bluetooth® LE, debugging via native USB...