Author: Ada IoT Think Tank Compilation and Release Please indicate the source and origin when reprinting Introduction Indoor positioning technology is needed in scenarios such as smart homes, smart factories, smart logistics, and smart elderly care to improve positioning accuracy. With the sudden increase in demand, indoor positioning technology is also rapidly developing, presenting a … Read more
In previous sections, we used the GPIO output function for the LED lights. This time, we will finally need to use the GPIO input function. The human infrared sensing module is quite simple to use. After completing our experiment, we will combine it with the previous buzzer to create a simple human detection alarm. 1. … Read more
Zhang Zhe, Li Zhi, Guan Sihai (School of Mechanical and Electrical Engineering, Xi’an University of Electronic Science and Technology, Xi’an, Shaanxi 710071) Abstract: To reduce the operating power consumption of fully automatic washing machines, improve operational stability, lower manufacturing costs, and facilitate easier operation, a fully automatic washing machine control system based on the STC89C52 … Read more
A collection of animated diagrams illustrating signal transmission in communication protocols helps us understand the principles of signal transmission. 1. SPI Transmission ▲ Figure 1 SPI Data Transmission ▲ Figure 1.2 SPI Data Transmission (2) ▲ Figure 1.3 SPI Timing Signal 2. I²C Transmission ▲ Figure 2.1 I2C Bus and Addressing Method 3. UART Transmission … Read more
These animated GIFs displaying signal waveforms in electronic systems help us understand the mechanisms of signal transmission. 1 SPI Transmission ▲ Figure 1 SPI Data Transmission ▲ Figure 1.2 SPI Data Transmission (2) ▲ Figure 1.3 SPI Timing Signal 2 I²C Transmission ▲ Figure 1.2.1 I2C Bus and Addressing Method 3 UART Transmission ▲ Figure … Read more
Search on WeChat Technical Training The following animations displaying signal waveforms in electronic systems help us understand the principles of transmission. Sharing with everyone. 1. SPI Transmission ▲ Figure 1 SPI Output Transmission ▲ Figure 2 SPI Data Transmission (2) ▲ Figure 3 SPI Timing Signal 2. I2C Transmission ▲ Figure 4 I2C Bus and … Read more
Infrared is a type of electromagnetic wave with a wavelength longer than that of red light. Since it exceeds the range observable by the human eye, it is invisible to us. However, sensors can detect it, with wavelengths typically ranging from 760nm to 400nm. We can take advantage of this to create an infrared controller. … Read more
Many people have heard of touch screens in their daily lives, but what exactly is a touch screen? What are its principles and functions? Let’s explore it together. Touch Screen Function For convenience, people use touch screens to replace mice or keyboards. A touch screen is an intelligent device that can display information and communicate … Read more
Click to View System Description Title: “Arduino Password Lock Design” Functions: Can set a password, unlock successfully Five incorrect password inputs trigger an alarm (buzzer) LCD display (1602) RFID-RC522 radio frequency module (swipe card to unlock) Modules Used: Relay Infrared Remote Control (replaces matrix keyboard) RFID-RC522 radio frequency module LCD1602 (I2C) Module Physical Diagram Wiring … Read more
Click “Tech Classroom” above to subscribe for the latest technology education information. In the Arduino sensor introductory course, we learned about various types of sensors. To further consolidate our knowledge, Tech Classroom is launching a new series called “Sensors in Daily Life” over the next few weeks, using videos to introduce how these sensors work … Read more