Hello everyone, today we used DDS to make FM frequency modulation signal. Now I have a question to ask you, which is how to accurately measure the frequency deviation of the modulated signal. Now we h...
Updated March 2021stm32/boardctrl: Add MICROPY_BOARD_STARTUP hook.
stm32/spi: Fix baudrate calculation for H7 series.
stm32/powerctrl: Save and restore EWUP state when configuring standby.
stm32/main:...
Thanks to TI and EEworld for the prizes! This time I won a Xiaomi Youth Edition white mouse. In 2015, I participated in a Vishay event and won a Logitech M275 mouse. The Logitech mouse feels very good...
[i=s]This post was last edited by Xianjing on 2020-11-23 20:48[/i]I was able to get this board thanks to Electronic Engineering World for providing the AutoChips AC7801x motor demo board! The previous...
Loop compensation design has always been a major problem in the switching power supply industry. Novice engineers always feel at a loss when learning or debugging loop design. Even most experienced p...[Details]
Discussion on LED technical standards and testing methods
LED lighting fixtures are composed of LED light sources, electrical accessories and appliances. It uses semiconductor light-emitting device...[Details]
On July 14, Yang Yue, member of the Standing Committee of the Jiangsu Provincial Party Committee and Minister of the Provincial Party Committee’s United Front Work Department, visited and investigate...[Details]
It can be said that the application of single-chip microcomputers in electronic technology is becoming more and more common, thanks to its excellent storage function, and when it comes into contact...[Details]
In the technologies that will appear in the next generation of cars: an inventory of 15 major technologies (Part 1) , we introduced 7 major technologies that will appear in future cars. In the next p...[Details]
When I started to study the principles of spectrum analyzers, I once had this doubt: "Why does reducing VBW not reduce the noise floor?" In fact, whether you can think clearly about this problem will...[Details]
1. Introduction
The standard structure of MCS51 microcontroller has only one full-duplex UART serial port, P3.0-RXD for receiving and P3.1-TXD for sending. If you want to complete multi-channel...[Details]
I. Introduction
As the scale of urban water supply expands and the urban pipe network continues to grow, the original telemetry system of Xiamen Water Company is difficult to adapt to the production ...[Details]
Because the early programs were relatively simple, they were updated relatively quickly.
Here we make the LED flash. There is a delay in the middle, light up the LED, delay for a while, and then tu...[Details]
Recently, British OXIS Energy announced that it will cooperate with Minas Gerais Development Company CODEMGE to build the world's first lithium-sulfur battery manufacturing plant in Brazil. It is rep...[Details]
Intelligent electromagnetic flowmeters have many advantages, but improper selection, installation and use will cause increased errors, unstable indications and even damage to the meter body. (1) Th...[Details]
System-level power conservation and power budget optimization are key to many applications. For example, data center operators strive to control energy consumption, portable device designers seek to ...[Details]
The AT89S51 microcontroller has a bit processor inside, which has a rich set of bit operation instructions for the bit address space. 1. Data bit transfer instructions The function of thi...[Details]
Preface This is a new picture of development that is a mixture of the old and the new, and a transformation of kinetic energy. In the tall red brick factory building with a sense of age, red hot molte...[Details]
RF/Wirelessly
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