esp32 调试温度传感器LM75

采用的是vs code 的arduino进行调试 导入lib包I2C Temperature Sensors derived from the LM75 添加到项目后 代码如下

#include <Arduino.h> #include <Temperature_LM75_Derived.h> //1001A2A1A0 Generic_LM75 temperature(0x48); Generic_LM75 temperature2(0x4A);  static const uint8_t TEMP_SDA = 22; static const uint8_t TEMP_SCL = 23; static const uint32_t TEMP_FREQUENCY =  400000L;//400khz  void setup() {      Serial.begin(9600);   Wire.setPins(TEMP_SDA, TEMP_SCL);   Wire.setClock(TEMP_FREQUENCY);   Wire.begin(); }  void loop() {   Serial.print("Temperature = ");   Serial.print(temperature.readTemperatureC());   Serial.println(" C");    delay(500);    Serial.print("Temperature2 = ");   Serial.print(temperature2.readTemperatureC());   Serial.println(" C");    delay(1000); }  

需要连接VCC，GND，SDA，SCL四条线， LM75默认地址是0x48,即1001 000 后三位是A2 A1 A0共8种组合，A与VCC连接为1，不连则为0。