I used a relay to switch the positive pole of the 24V power supply. After using it for a while, I found that when I disconnected the relay voltage, the relay was electrocuted but not disconnected.
The...
BLE CC2541 as low-power smart hardwareIntroduction: Recently, due to project needs, CC2541 is used to make a smart hardware similar to a Bluetooth bracelet, which can collect human body temperature, d...
Preface
This time, based on the timer's PWM output and segment code display, the function of a PWM generator is realized.
process
Based on LCD_TK.
Use the upper 4 digits to display the period, unit 10...
No time? Start here! This quick list summarizes the main points of the book. Read the main points of this chapter, and if there are any that interest you, check out the full explanations in the previo...
In the field of security, the traditional transmission in the network field is through wired networks. The current popular way is to use WiFi wireless network. The embedded interfaces include RJ-45, U...
Today, I saw a group of netizens chatting about the Hongmeng system in a development group.Start with a picture, then start chattingMartian netizens analyzed: This means that Hongmeng has integrated b...
With the popularization of wireless technology applications, wireless transmission technologies such as WiFi, 3G, and microwave have been successfully applied to various fields of video surveillan...[Details]
Memory interface concept: Usually, ARM chips have very little built-in memory. To run Linux, memory expansion is required. ARM9 uses SDRAM memory for extended memory, and ARM11 uses DDR SDRAM. S3C244...[Details]
The MAX-700B/C series is an OTDR designed based on tablet computers. It is small, lightweight, easy to carry and durable, and is suitable for outdoor environments. It is equipped with the most effici...[Details]
Note on STM8L serial port interruption When debugging the PM2.5 sensor GP2Y1051, it is found that data can be received at the beginning of simulation, but if it is paused, it cannot receive data. I...[Details]
CES 2020 (International Consumer Electronics Show), known as the "Spring Festival Gala of Technology", will be held in Las Vegas, USA. According to official CES data, the number of manufacturers atte...[Details]
0 Introduction
A certain type of air defense command system is a network system with modular and node-based design based on microcomputers. The whole system consists of 6 basic workstations, which f...[Details]
Liquid level controller refers to the control of high and low liquid levels through mechanical or electronic methods. It can control solenoid valves, water pumps, etc. to achieve semi-automatic or ...[Details]
Texas Instruments debuts at the 4th CIIE, opens new automated product distribution center in Shenzhen to efficiently respond to customer needs Focusing on new infrastructure, automobiles, smart ho...[Details]
As we all know, the global smartphone market shipments in 2019-2020 were not ideal, and have declined compared with previous years, especially in 2020, affected by factors such as the epidemic, causi...[Details]
AlphaDev, the artificial intelligence agent of the British company DeepThink, has been proven to discover and improve computer sorting algorithms widely used in C++ (a common computer programming lan...[Details]
I recently used STM8F103 + SI4432 to tune the wireless, and encountered many problems. Here I refer to the experience of predecessors; 1. When the hardware board was given to me, the USB burning ca...[Details]
Nvidia announced its first quarter financial report on April 21, 2020, which showed that the company's revenue was $3.08 billion, a 39% increase from the same period last year and a 1% decrease from ...[Details]
a) Purpose: Basic PWM input is also called capture, and interrupt coordination application. Use the output pin PB1 (pin 19) in the previous chapter, directly use a jumper to connect the inp...[Details]
On June 6, 2022, at 1 a.m. on the 7th, Apple's WWDC22 Global Developers Conference will be held as scheduled. Although the focus of this year's developer conference is still the update of the five ma...[Details]
On November 6, it was reported that researchers at the University of Southampton in the UK are conducting a breakthrough experiment to test a drone equipped with an innovative "nervous system".
...[Details]