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The community's 15th anniversary DIY electronic toolbox suggestion collection activity has ended. Engineers in the forum have provided a lot of suggesti...
Starting from the grand undertaking of the Internet of Things advocated by EPCGlobal, combined with the author's personal experience in participating in some RFID pilot projects, this paper focuses on...
At present, the "new crown" virus is still raging around the world, and "wearing a mask" has become the most basic and effective "standard" measure for safe travel. In a crowd, we can almost "identify...
When debugging low power consumption, it is best to close the serial port and modify the macro:
HAL_UART=FALSEHAL_UART_DMA=1HAL_UART_ISR=0HAL_UART_TX_BY_ISR=1
However, after the modification, a compil...
After looking at the previous salaries of RF engineers, I feel that RF engineers have become more and more popular in recent years. This may be because the Internet of Things is becoming more and more...
1 Introduction
With the effective compensation of chromatic dispersion, pulse broadening and bit error rate reduction caused by polarization mode dispersion (PMD) have become the limiting factors...[Details]
Preface Function generator is an instrument that uses direct digital synthesis (DDS) to generate sine wave, square wave, triangle wave, pulse wave and amplitude modulation (AM), frequency modulation ...[Details]
1. Classification of analytical instruments There are many types of analytical instruments with different uses. According to the measurement principle and analysis method, analytical instruments can...[Details]
This article describes how to design a pulse width modulation (PWM) converter (voltage) fall time control circuit in one of the most commonly used PWM controllers, using the falling slope of the ...[Details]
How does an ammeter work? The ammeter is made based on the magnetic field force exerted by the current-carrying conductor in the magnetic field. When there is current passing through, the current pas...[Details]
Introduction: Researchers at Karlsruhe Institute of Technology (KIT) in Germany have developed and successfully applied an innovative concept for coating and drying two layers of electrodes at the sa...[Details]
One of the most challenging parts of any automation project is getting all the devices to talk to each other. As many people know, trying to get two devices from two different manufacturers to comm...[Details]
The rectifier output push-pull transformer switching power supply, because the two switching tubes work alternately, is equivalent to two switching power supplies outputting power at the same time,...[Details]
According to a report in the UK's Daily Telegraph, the Raspberry Pi could soon be on the market for more than £370 million ($493 million). Currently, Raspberry Pi has hired consultants from two in...[Details]
As the name implies, a voltage regulator is a device that stabilizes the output voltage. All voltage regulators use the same technology to achieve output voltage stability. The output voltage is sa...[Details]
1. System Overview The modules used in the system include AT89C51 microcontroller + buttons + two small lights of different colors. The system uses AT89C51 microcontroller as the main control. The sy...[Details]
In 2020, the third-generation semiconductor industry has become the hottest industry. The craze for domestic substitution and new infrastructure has undoubtedly added fuel to the fire. According to...[Details]
First, let's look at a program:
Title 'Input.asm'; Title
; This is a simple input experiment
include
COUNT EQU 20H; Define the 20H register as COUNT
ORG 0; the program area will be loaded f...[Details]
DIY/Open Source Hardware
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