1. Basic introduction Item name: Intelligent fan system design based on microcontroller Design of temperature control fan system based on single chip microcomputer Design of energy-saving fan system based on single-chip microcomputer Design of automatic control fan system based on single-chip microcomputer Project name: Smart fan | Temperature-controlled fan | Energy-saving fan | Automatic control […]
Tag: temperature
HP203B air pressure temperature sensor driver
Without further ado, let’s get straight to the code. The device tree code is as follows. It should be noted that the I2C device address described in the device is 7 bits, not 8 bits. Otherwise, the I2C subsystem will prompt that the device cannot be found when initializing. i2c3: i2c@50008c00 { compatible = “xxx-i2c3”; […]
Use dht20 to implement temperature and humidity detection in stm32
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 […]
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 […]
ADC experiment (internal temperature sensor experiment) (photosensitive sensor experiment)
Introduction to Internal Temperature Sensor STM32 has an internal temperature sensor that can be used to measure the temperature of the CPU and its surroundings (the internal temperature sensor is more suitable for detecting temperature changes. When precise temperature measurement is required, an external sensor should be used). For STM32F103, the temperature sensor is internally […]
Experiment 5 Temperature collection and keyboard scanning
1. Experimental purpose *Master the method of controlling interrupts and timers in C51 *Master the principles and methods of using CH451 for keyboard input *Master the interface and programming of DS18B20 temperature sensor 2. Experimental equipment *MCU experiment box *CH451 display module *Temperature acquisition module (at the lower left of the SWITCH module area of […]
[Proteus simulation] [STM32 microcontroller] Multi-channel temperature control system
Article directory 1. Function introduction 2. Software design 3. Experimental phenomena Contact the author 1. Function introduction This project uses Proteus8 to simulate the STM32 microcontroller controller, using buttons, LEDs, buzzers, LCD1602, DS18B20 temperature sensor, HC05 Bluetooth module, etc. The main function: After the system is running, LCD1602 displays the temperature collected by the first […]
[Proteus Simulation] [51 Microcontroller] Multi-channel temperature control system
Article directory 1. Function introduction 2. Software design 3. Experimental phenomena Contact the author 1. Function introduction This project uses Proteus8 to simulate the 51 microcontroller controller, using buttons, LEDs, buzzers, LCD1602, DS18B20 temperature sensor, HC05 Bluetooth module, etc. The main function: After the system is running, LCD1602 displays the temperature collected by the first […]
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 […]