CAN messages are received and sent via interrupts. CAN_RX and CAN_TX are also remapped to PA11 and PA12 pins respectively. AFIO clock and CAN clock are also enabled, but the interrupt cannot be entere...
The 16GB iPad (not 3G) with a suggested retail price of $499 has a component cost of $250.60, including manufacturing costs of $259.60. Nearly half of the profit. The total cost of user interface rela...
[b]Abstract: [/b]This paper introduces a voice electronic door lock identity authentication system implemented on the Lingyang SPCE061A single-chip microcomputer using voiceprint recognition technolog...
The ADC of F28027 has a limit time of 13 clocks, and the sampling clocks can be staggered. In this way, it can reach 4.6M. However, the converted data must be used, otherwise no matter how fast the AD...
Design requirements: 1: The red light of the tester flashes or the buzzer emits a long sound, indicating that the measured value is a logic high level. 2: The green light flashes or the buzzer emits a...
When measuring resistance values, the Wheatstone bridge is often mentioned. Why can using it improve the test accuracy?
If you want to measure resistance, two resistors can also be measured.
Are the f...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
introduction
MEMS is a high-tech that has flourished on the basis of integrated circuit production technology and dedicated micro-electromechanical processing methods. Pressure sensors develop...[Details]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]
Movpower is a portable power bank. It can charge most mobile phones and digital products, such as digital cameras, PDAs, and mobile phones such as Apple, iPod, Blackberry, Motorola, Samsung, Nokia,...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
Stepper motors, also called steppers, use the principles of electromagnetism to convert electrical energy into mechanical energy and have been used since the 1920s. With the increasing popularity o...[Details]
During the global semiconductor industry recession, the automotive electronics market has performed strongly, especially the application of car remote control systems has become more and more wides...[Details]
1 Features
1.1 Single cell operating voltage up to 3.7V
It is three times that of nickel-cadmium batteries and nickel-metal hydride batteries, and nearly twice that of lead-acid batteries...[Details]
1 Causes of problems with electric vehicle batteries
1.1 Caused by the battery itself
Why do we say that? In the previous issue, we learned about the working princi...[Details]
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