找到I2C LCD显示器的十六进制地址后,我们将相应地控制该显示器,以通过I2C从Arduino或NodeMCU向LCD显示器发送消息。 下图显示了I2C LCD显示屏分别与Arduino Uno和NodeMCU之间的硬件连接。 下表列出了Arduino Uno和LCD显示屏之间的硬件连接关系。 下表列出了Node MCU和LCD显示屏之间的硬件连接关系。 如何找到I2C设备的十...
HD44780 driver to perform most of the basic tasks that might be useful for simple projects. I'm posting mainly because these displays are frequently used in small embedded projects and hopefully this can be of some help to beginners looking to migrate to the ESP-IDF from the Arduino ...
This tutorial shows how to use the I2C LCD (Liquid Crystal Display) with the ESP32 using Arduino IDE. We’ll show you how to wire the display, install the library and try sample code to write text on the LCD: static text, and scroll long messages. You can also use this guide with ...
1. 打开 Arduino IDE,然后转到Sketch>Include Library> Manage Libraries。 2. 在搜索框中输入“SSD1306”,然后从 Adafruit 安装 SSD1306 库。 3. 选择“install all”。如果没有跳出弹窗,则从 Adafruit 安装 SSD1306 库后,在搜索框中键入“GFX”并安装该库。 4. 安装库后,重新启动 Arduino IDE。(实测非必须...
I2C (Inter-Integrated Circuit) 总线用于使 ESP32 和多个外部设备进行通信。多个外部设备可以共用一个 I 2C 总线。 I 2C 具有以下几个特点。 · 支持主机模式以及从机模式 · 支持多主机多从机通信 · 支持标准模式 (100 kbit/s) · 支持快速模式 (400 kbit/s) ...
I can't get my ESP32-WROOM-32 to send any data over SDA with the I2C libraries. I'm using GPIO 21 for SDA, and GPIO 22 for SCL. First, I wrote the functionality with the Arduino library, using just the pinMode(), digitalWrite(), etc. ...
Arduino-ESP32教程 - 3.2_Arduino-ESP32_呼吸灯,OLED_I2C_0.96(SSD1(Av68002869,P3) 是在优酷播出的生活高清视频,于2019-10-09 15:43:54上线。视频内容简介:Arduino-ESP32教程 - 3.2_Arduino-ESP32_呼吸灯,OLED_I2C_0.96(SSD1(Av68002869,P3)
ESP32-Touch, Hall, I2C, PWM, ADC, & DAC: The ESP32s, are a series of inexpensive microcontrollers introduced in the last quarter of 2016. They are powerful systems on a chip (SoC), they replace the ESP8266, and perhaps one might even say the Arduino UNO.
Arduino ESP32 I2C Slave 的例子 Arduino 作为 I2C Slave 算是比较冷门的使用方式,下面是一个实际的例子: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 #include <Wire.h> byte i2c_rcv=0; // data received from I2C...
Arduino/ESP8266与其他设备通信,例如OLED显示器、气压传感器等,可以使用I2C通信协议。也可以使用两外两个...