Using the YF017 music chip in the picture below, different sounds can be played by sending out several pulses. Does the following code send out a single pulse? How can we send out multiple pulses to m...
I would like to ask if you know of a module that can output multiple TTL signals using an Ethernet port. I searched online but couldn't find a suitable one....
I want to make a charging circuit to charge 1860 batteries using a TYPEC interface. Since there are many types of chargers, I want to implement a charging circuit that can adapt to a wide range of vol...
[i=s] This post was last edited by ddllxxrr on 2018-10-28 07:39 [/i] This microcontroller clearly states that it is powered by 2.5~5.5V. Voltage conversion means voltage conversion. This puts me under...
First of all, I am very grateful to the EEWORLD community and teacher "Zhang Jindong" for their strong support. I am honored to have the opportunity to evaluate this board. Today is the weekend. I jus...
D1 is a Schottky diode. What is its function? Can it be removed?
The following is a typical circuit of a step-down synchronous DCDC chipD1 in the figure is a Schottky diode. What does it do? Check the...
This article introduces digital power supply technology that replaces traditional analog control: Digital power supply has great advantages over analog solutions, not only in terms of performance (...[Details]
When we learn STM32, the function assert_param is very likely to appear. If you search online, you will find that the assertion mechanism is generally explained online and is used during the program ...[Details]
1. Introduction This circuit is composed of AT89C51 minimum system and LCD1602 liquid crystal module. It can realize vertical scrolling, left and right scrolling and playback pause. 2. Implementati...[Details]
On September 6, the State Grid Corporation of China's scientific and technological project "Research on Flexible Transmission Network Planning and Evaluation Methods and Key Application Technologie...[Details]
This article introduces in detail the basic knowledge of serial port, ISP download of 51 single-chip microcomputer, etc. Those who have already learned single-chip microcomputer can also take a look...[Details]
PLC automatic control is widely used in electrical automation and intelligent control. Electric power workers all know that in addition to inputting established programs, PLC automatic control also...[Details]
Phenomenon 1: This single board has been produced in small batches, and no problems have been found after a long period of testing .
Comments: Hardware design and chip application must comply with...[Details]
The word "out of stock" has been mentioned frequently recently, especially in the semiconductor industry. According to Nikkei Asia Review, unlike previous years when the company was chasing after cus...[Details]
1. RFID System Overview
RFID is a contactless identification system. It is an automatic identification technology that has emerged since the 1990s. It uses wireless radio frequency to perf...[Details]
According to foreign media reports, lithium batteries can power smartphones, laptops, electric bicycles and electric vehicles , etc., and store energy in a very small space. This compact design is us...[Details]
According to the China Central Radio and Television Economic Voice "World Finance", the report shows that in the first half of this year, 4K ultra-high-definition TVs accounted for 70% of domestic co...[Details]
Advantages of dual-row sensors
At present, most smart cars use a single-row sensor road detection method. This method obtains less road information and cannot distinguish the state of the smart car...[Details]
According to CCTV Finance, the National Development and Reform Commission today (20) clarified the scope of new infrastructure for the first time. It is reported that the new infrastructure mainly ...[Details]
This article introduces the main features, block diagram, basic application circuit and bill of materials of the CS1500, as well as
the circuit diagram and bill of materials (BOM) of a 90W ...[Details]
Soft-start thyristor is a power electronic device used to control the start and operation of the motor. It has the advantages of smooth start, high operating efficiency and convenient control. In p...[Details]
FPGA/CPLD
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