DHT11 is a low-cost temperature and humidity sensor that uses a moisture-sensitive resistor to measure humidity, employs a digital temperature sensor for temperature testing, and processes the data using a microcontroller with serial output. The DHT11 costs about 4 yuan, though it is not aesthetically pleasing. The DHT22 is priced around 15 yuan, and while … Read more
Implementing DHT11 Temperature Sensor Parameters with C# on ESP32 Microcontroller[1] Welcome to C# enthusiasts, in this article we will use the C# nanoframework to develop a program to read temperature and humidity from the DHT11 sensor on the ESP32 microcontroller. To implement this, we need to prepare and configure the environment for ESP32. You can … Read more
Overview Previously, I wrote a tutorial on building a temperature and humidity monitor with 20 lines of code, and I also promised to write a tutorial without any coding. After a long delay, I finally finished it. Some content is excerpted from the Baidu Cloud IoT Platform documentation. Development Board NodeMCU is an open-source development … Read more
Introduction This example will demonstrate how to use the ESP8266-based NodeMCU to upload temperature and humidity data collected through the DHT11 sensor to the MQTT cloud service using the MQTT protocol. It will also show how the application side subscribes to these data and processes them. The reason for using the MQTT protocol is that … Read more
Code Repository 1. Gitee: https://gitee.com/yangkun_monster/clock.git 2. Github: https://github.com/pifan-open-source-community/clock.git Video Tutorial Address: Bilibili: Raspberry Pi Enthusiasts Base, Play Pi VLOG Video VLOG Record: Bilibili: Play Pi VLOG 1. Overview Create a desktop clock using Raspberry Pi PICO that can display the year, month, day, hour, minute, second, week, temperature, and humidity. The clock can be divided … Read more
You can do this Author | Abhinaya Balaji Editor | Su Ma WeChat ID | csdn_iot Introduction There are many devices on the market that provide the ability to monitor the home environment from a central interface. In this article, we will DIY a set of such monitoring equipment. To do this, we will use … Read more
Arduino has a rich set of external interfaces, and the biggest difference from Raspberry Pi’s IO ports is that Arduino has analog input interfaces that can measure analog values on IO ports. The communication scheme between Arduino and Raspberry Pi via serial (Serial) generally has two methods: one is through Raspberry Pi GPIO serial communication, … Read more
Experimental components include: LED, switch and temperature and humidity sensor. 1. Connection of LED LED (Light Emitting Diode) is a solid-state semiconductor device that can convert electrical energy into visible light. It directly converts electricity into light. The core of the LED is a semiconductor chip, one end of which is attached to a bracket, … Read more