dht20 hardware and environment i2c I2C (Inter-Integrated Circuit) is a serial communication protocol used to communicate between electronic devices. It consists of two lines: clock line (SCL, Serial Clock) and data line (SDA, Serial Data). The I2C protocol uses a master-slave structure, in which one device acts as the master device and is responsible for […]
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ESP32-DHT11 temperature and humidity data upload to MQTT server
ESP32-DHT11 temperature and humidity data uploaded to MQTT server Introduction ESP32 DHT11 experiment Experiment instructions wiring MQTT server establish connection Add subscription ESP32 drives DHT11 ESP32 sends data to MQTT server Upload temperature and humidity data Experimental results Introduction ESP32 Click on the image to purchase The ESP32 series modules integrate Wi-Fi, traditional Bluetooth and […]
How to use ESP8266 and DHT11 to collect indoor temperature and humidity and send them to the server program through WIFI
Have you ever thought about implementing your own indoor temperature and humidity detection system? I used the weekend to accomplish this small goal. I used ESP8266 and DHT11, and sent the collected data to the server program through WIFI and stored it in a SQLite database. In the following introduction, I will share with you […]
IIC protocol reads temperature and humidity data (HAL library)
Directory 1. I2C bus protocol 1.1. Introduction to I2C 1.2. Hardware I2C 1.3. Protocol layer 1.3.1 I2C communication composite format 1.3.2 Start and stop signals of communication 1.3.3 Data validity 1.3.4 Address and data direction 1.3.5 Response 2. IIC protocol reads temperature and humidity data 2.1 Experimental content and AHT20 2.2 CubeMX configuration 2.2.1 System […]
STM32F103 realizes temperature and humidity (AHT20) collection through IIC protocol
STM32F103 realizes temperature and humidity (AHT20) collection through IIC protocol Article directory STM32F103 realizes temperature and humidity (AHT20) collection through IIC protocol 1. IIC Agreement 1. Introduction to IIC protocol 2. Physical layer and protocol layer 3. Software IIC and hardware IIC 2. Temperature and humidity collection 1. IIC protocol 1. Introduction to IIC protocol […]
STM32 I2C communication protocol and temperature and humidity sensor module
Learn the I2C bus communication protocol, use STM32F103 to complete the data collection of the AHT20 temperature and humidity sensor based on the I2C protocol, and output the collected temperature-humidity values through the serial port Article directory 1. Preliminary knowledge (1) I2C communication protocol (2) I2C physical layer (3) I2C timing (4) Hardware I2C and […]
Based on 51 microcontroller Bluetooth upload temperature and humidity control servo switch
1. Foreword In the past two years, the requirements and difficulty of graduation projects and graduation defenses have continued to increase. Traditional graduation projects lack innovation and highlights, and often fail to meet the requirements for graduation defenses. In the past two years, junior students and junior students have constantly told Senior Xiaohong to do […]
STM32 development practice-data collection of AHT20 temperature and humidity sensor based on I2C protocol
STM32 development practice-data collection of AHT20 temperature and humidity sensor based on I2C protocol Preface “Software I2C” and “Hardware I2C” SoftwareI2C HardwareI2C AHT20 temperature and humidity sensor AHT20 main features AHT20 parameters Application areas STM32 data collection of AHT20 temperature and humidity sensor based on I2C protocol Ideas code Experimental effect Summarize Foreword In the […]
Data collection of AHT20 temperature and humidity sensor based on I2C protocol
Data collection of AHT20 temperature and humidity sensor based on I2C protocol 1. Basic introduction 1. What is “software I2C” and “hardware I2C” 2.AHT20 temperature and humidity sensor 2. Project establishment 3. Code part 4. Results display and summary 1. Basic introduction 1. What is “software I2C” and “hardware I2C” Software and protocol layers, hardware […]
STM32DHT11 temperature and humidity sensor module
1. Introduction to DHT11 module ?DHT11 digital temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output. It applies dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure that the product has extremely high reliability and excellent long-term stability. . The sensor includes a resistive […]