在Arduino/ESP8266上,您将找到用于I2C通信的两个GPIO(SDA和SCL)。 如果不确定是否找到相应的引脚,请参见以下图片 ESP8266(NodeMCU):SDA:D2(I2C->数据);SCL:D1(I2C->时钟) Arduino Nano开发板:SDA:A4;SCL:A5 I2C通信所需的两个引脚如下: SDA(串行数据):主站和从站之间的连接,用于发送和接收数据。 SCL(...
将I2C LCD连接到ESP8266非常容易，因为您只需要连接4个引脚即可。首先将VCC引脚连接到ESP8266上的VIN，...
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...
在此示例中,我们使用的是 I2C 通信协议。ESP8266 中最适合 I2C 通信的引脚是GPIO 5(SCL) 和GPIO 4(SDA)。 如果您使用的 OLED 显示屏具有 SPI 通信协议,请使用以下 GPIOs。 GPIO 14: CLK GPIO 12: MISO GPIO 13: MOSI GPIO 15: CS 安装SSD1306 OLED 库 + ESP8266 打开您的 Arduino IDE,转到工具->...
I am trying to run the i2c detect script from Arduino from http://playground.arduino.cc/Main/I2cScanner I modified the setup and started with Wire.pins(2, 0); Wire.setClock(100000); Unfortunately, the code returns error == 0 for all addr...
I2C scanner. Scanning ... Found address: 39 (0x27) Done. Found 1 device(s). Scan I2S on ESP8266 -- http://www.esp8266.com/viewtopic.php?f=19&t=771 -- Scan for I2C devices id=0 sda=8 scl=9 -- initialize i2c, set pin1 as sda, set pin0 as scl i2c.setup(id,sda,scl,i2...
使用I2C扫描工具（如i2c_scanner）确认设备的I2C地址。5.I2C总线冲突 确保I2C总线上没有其他设备冲突。
#include<Wire.h>voidsetup(){Wire.begin();Serial.begin(9600);Serial.println("\nI2C Scanner");}voidloop(){byte error,address;int nDevices;Serial.println("Scanning...");nDevices=0;for(address=1;address<127;address++){// The i2c_scanner uses the return value of// the Write.endTransmiss...
I did that and tested the resoldered OLED display with i2c scanner script, it detected the i2c device at address 0x3D. However, when i tried to test the resoldered display with SSD1305SimpleDemo.ino, changing the Line 61 from SSD1306 display(0x3c, D3, D5); to SSD1306 display(0x3d...
Re: esp32c3 arduino ide i2c device not found Quote Postbymaggymtac»Wed Oct 06, 2021 3:27 pm Did you try I2C scanner? I am using currently master branch (with S2), but im pretty sure that RC2 is also fixed. Maybe try to add SDA and SCL pins into Wire.begin(SDA, SCL); ...