I want to use three relays and a single chip microcomputer to control the forward and reverse rotation of two motors and start and stop. Is it possible? Please help!...
[i=s]This post was last edited by tinnu on 2020-9-13 23:08[/i]1. GD32F4
The GD32F4 series is the earliest M4F core MCU I know of in China. Several other series such as F3 and E1 are M4 cores without h...
In any switching power supply design, the physical design of the PCB board is the last link. If the design method is not appropriate, the PCB may radiate too much electromagnetic interference, causing...
With the development of wireless communication technology, the number of wireless users has increased dramatically, making spectrum resources increasingly scarce. How to fully improve the utilization ...
I have a set of Puzhong MCU development board, the MCU on it is STC90C516RD+, the stepper motor driver chip is UDN2916LB, and the stepper motor can run normally when written. I copied the Puzhong sche...
1. error: #256: invalid redeclaration of type name "s32" (declared at line 470 of "C:\Keil_STM32\ARM\INC\ST\STM32F10x\stm32f10x.h") Solution: Open the stm32f10x_conf.h file, comment out "#include "...[Details]
As modern battery-powered mobile devices and power products become increasingly green and energy efficient, engineers are in urgent need of oscilloscopes that provide highly sensitive small signal me...[Details]
Recently, it was reported that NIO will launch a new battery pack with a battery capacity of more than 75 degrees, and this battery pack will use lithium iron phosphate technology. Compared with NIO,...[Details]
Low frequency pulse radar level meter is a kind of radar level meter, which is relative to high frequency radar level meter. So, what is the working principle of low frequency radar level meter? What...[Details]
The opening ceremony of the 2022 World Telecommunication and Information Society Day Conference was held a few days ago. Jiang Yafei, senior vice president of Huawei Technologies Co., Ltd., delivered...[Details]
Instruction format Function Description Bytes Cycles
1. Data transfer instructions
MOV A, Rn Register to accumulator 1 1
MOV Rn, A Accumulator to register 1 1
MOV A, @Ri Internal RAM unit sen...[Details]
When we design and write embedded systems, when we use 51 microcontroller to write programs, we often use loop structures to repeatedly execute a piece of code. However, sometimes we may encounter th...[Details]
When choosing solder varieties, we should not only care about the mechanical properties of the solder itself, but also the reliability of the solder joints formed by the solder. In fact, the mecha...[Details]
Among the industrial and domestic electrical loads, resistive and inductive loads account for a large proportion. Asynchronous motors, transformers, fluorescent lamps, etc. are typical resistive ...[Details]
OPPO has officially announced that the next-generation Find X flagship series will be the first to be equipped with the MediaTek Dimensity 9000 mobile platform, and its CPU performance is expe...[Details]
Like SMT, CMP is committed to exploring the coarse-grained parallelism of computing. CMP can be seen as the development of large-scale integrated circuit technology. When the chip capacity is large en...[Details]
On February 3, Tianyancha showed that Beijing Jiutian Microstar Technology Development Co., Ltd. (hereinafter referred to as "Jiutian Microstar") has recently completed the delivery of a billion-leve...[Details]
Because it involves programming, learning ARM microcontroller system is somewhat difficult for designers engaged in electronic circuits. Learning knowledge is not difficult, but it is difficult to so...[Details]
1. Bus Overview The computer system is based on the microprocessor. Each device must be connected to the microprocessor and must work in coordination. Therefore, the concept of bus is introduced in t...[Details]
A soft starter is an electrical device used to start a motor. It can effectively reduce the current shock when the motor starts, thereby protecting the motor and the power grid. The starting curren...[Details]