This article writes a program based on the SimpleMac protocol stack of 802.15.4/ZigBee to realize the communication between two STM32W108 wireless nodes. The nodes are divided into SUN nodes and PLANE...
The Sailor Hat ESP32 Development Board is a powerful microcontroller development board suitable for marine environments.Using the SH-ESP32, it is easy to create a variety of sensor and control interfa...
1. Open the project file under the example BLE_UART. Write BLE_UART.hex to the chip.2. Turn on Bluetooth on your phone and install BLEAssist.apk.3. Connect the RXD of the USB to serial port to PA5 of ...
(1) Crossing circuits are not allowed in printed circuits. For lines that may cross, there are two ways to solve it: "drilling" and "winding". That is, let a lead "drill" through the gap under other r...
LED phosphor
The glue preparation process is
a very basic part of the
LED
manufacturing process. Let's see how it is done.
Preparation:
1. Turn on a...[Details]
Introduction: This topic comes from a project of Beijing Puji General Company. Since the company’s existing stand-alone spectroscopic instrument products (such as 1810, T6, etc.) use parallel port...[Details]
The hydrogen sulfide gas detector is mainly composed of electrochemical sensors, electronic components and display parts. The sensor converts the hydrogen sulfide gas in the environment into an elect...[Details]
introduction
In industrial control, in order to ensure the reliable operation of the system, it is necessary to detect the surrounding environmental variables (such as temperature, air pressure, hu...[Details]
Expert advice
When you first start learning microcontrollers, you must understand some digital circuits. If you are not familiar with the general concepts of digital circuits, you should learn d...[Details]
According to news on March 11, Marvell Electronics is expanding its cooperation with TSMC to develop the industry’s first 2nm chip production platform optimized for accelerated infrastructure, accord...[Details]
Analysis of LCD working principle:
1. LCD hardware architecture:
LCD hardware system: You can see that the LCD controller is in the ARM processor, and the LCD screen and p...[Details]
An oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, making it easier for people to study the changing ...[Details]
In the previous two issues of "Juchuang Popular Science", the editor of Juchuang brought you an instrument: LD-5 microcomputer dust detector. Through detailed graphic and text introduction, everyone ...[Details]
Abstract: This paper introduces the design of a low-IF polyphase filter for GSM receivers, which uses an active RC circuit architecture and is fully integrated on a single chip. The design uses TSM...[Details]
On May 7, the 2019 C3 Security Summit was held in Chengdu. As the most influential closed-door high-end summit in the cybersecurity industry, domestic and foreign cybersecurity experts, government le...[Details]
Metal corrosion can be seen everywhere. The direct and indirect losses caused by corrosion to metal materials are huge, even causing catastrophic damage accidents and causing serious environmental ...[Details]
The magnetic column level gauge uses a magnetic float to drive a two-color magnetic column to indicate the liquid level. It can be used for medium level detection in various towers, tanks, tanks, sph...[Details]
An oscilloscope is a time-domain measuring instrument that tests the change of signals over time and voltage waveforms. It is similar to a spectrum analyzer in that it can perform FFT, which is equiv...[Details]
RF/Wirelessly
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