/*! * @file getHumidityAndTemperature.ino * @brief DFRobot's SHT20 Humidity And Temperature Sensor Module * @details This example demonstrates how to read the user registers to display resolution and other settings. * @n Uses the SHT20 library to display the current humidity and temperature. * @n Open serial monitor at 9600 baud to see readings. * @n Errors 998 if not sensor is detected. Error 999 if CRC is bad. * @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com) * @license The MIT License (MIT) * @author [Zhangjiawei](jiawei.zhang@dfrobot.com) * @maintainer [qsjhyy](yihuan.huang@dfrobot.com) * @version V1.0 * @date 2021-12-03 * @url https://github.com/DFRobot/DFRobot_SHT20 */ #include "DFRobot_SHT20.h" #include /** * Hardware Connections: * -VCC = 3.3V * -GND = GND * -SDA = A4 (use inline 330 ohm resistor if your board is 5V) * -SCL = A5 (use inline 330 ohm resistor if your board is 5V) */ DFRobot_SHT20 sht20(&Wire, SHT20_I2C_ADDR); void setup() { Serial.begin(115200); Wire.begin(23,22); //new SDA SCL pins (D6 and D4 for esp8266) // Init SHT20 Sensor sht20.initSHT20(); delay(100); Serial.println("Sensor init finish!"); /** * Check the current status information of SHT20 * Status information: End of battery, Heater enabled, Disable OTP reload * Check result: yes, no */ sht20.checkSHT20(); } void loop() { /** * Read the measured data of air humidity * Return the measured air humidity data of float type, unit: % */ float humd = sht20.readHumidity(); /** * Read the measured temp data * Return the measured temp data of float type, unit: C */ float temp = sht20.readTemperature(); // Serial.print("Time:"); // Serial.print(millis()); // Get the system time from Arduino Serial.print(" Temperature:"); Serial.print(temp, 1); // Only print one decimal place Serial.print("C"); Serial.print(" Humidity:"); Serial.print(humd, 1); // Only print one decimal place Serial.print("%"); Serial.println(); delay(1000); }