Like MicroPython, CircuitPython can easily simulate USB HID devices, and can use the device as a USB keyboard or USB mouse. Let's take a look at the basic usage of USB HID:import usb_hidkb = usb_hid.d...
[i=s]This post was last edited by full_stack on 2022-5-9 00:54[/i]I am grateful to the platform for giving me a trial opportunity. I applied for Wi-FiBLE SoC NANO (WBRU). After consulting Tuya enginee...
Because the speed of writing flash to the node is too slow under the tinyos system, I began to suspect that there was something wrong with the speed of SPI, so I later directly read and wrote FLASH on...
1. StatementThe author does not understand embedded development. The entire reverse process is figured out step by step based on his own reverse experience. Please criticize and correct any mistakes, ...
I have seen that some PCBs have strictly double-sided crossing wiring. Is there any purpose for this?
Just like this picture, Top is horizontal and Button is vertical....
Today, let’s learn about the common automotive electronic reverse connection protection circuits.
01
Why Reverse Battery Protection?
Imagine the following scene: the car has not been driven for a long...
First of all, we must understand some basic principles. In fact, when you press a key on the remote control, the remote control will send out a series of modulated signals. After the signal is receive...[Details]
In order to solve the problem of multi-person collaboration, the development of products with multiple needs, and long-term maintenance, it is necessary to extract the commonalities of these products...[Details]
"For all car companies that want to share in the new energy mid-range and above market, one thing they must understand is that when the driving experience of pure electric drive becomes more and more...[Details]
1. The main components of lithium power batteries
(1) Battery cover
(2) Positive electrode - active material is lithium cobalt oxide
(3) Diaphragm - a special composite membrane
...[Details]
1. Key points of timer/counter
PWM
design
According to the characteristics of PWM (Pulse Width Modulation (PWM: (Pulse Width Modulation) is a very effective mode of controlling an...[Details]
Abstract: This paper focuses on the design of a new display system based on ETX module, which mainly includes the digital conversion of analog video signals and the design of LVDS video bus. The pa...[Details]
Although a fuse is just a fusible wire, its effectiveness cannot be underestimated. Especially when protecting circuits or using a tester to test voltage and current, if the tester's fuse is not selec...[Details]
ST's third-generation technology improves accuracy and energy efficiency
Additional features include edge machine learning and electrostatic sensing
March 4, 202...[Details]
The latest trend in photovoltaic inverters is multi-string technology: connecting multiple strings of series-connected solar cells to a single inverter, where each cell has its own maximum power point...[Details]
Abstract: Programmable DSP (Digital Signal Processor) has been widely used in digital telephones. This article explains the application of DSP in current standards and looks forward to the futur...[Details]
With the widespread application of integrated circuits and embedded computers in automobiles, the number of electronic controllers in modern automobiles is increasing. Common ones include electroni...[Details]
The forward and reverse rotation of the motor is widely used and is also one of the required items in the low-voltage electrician practical examination. Only when we fully understand its working pr...[Details]
After several periods of dormancy, Transsion Holdings, the "king of African mobile phones", will be listed on the Science and Technology Innovation Board soon, and the currently confirmed issue price...[Details]
Modern production and scientific research have increasingly higher requirements for image acquisition systems. Traditional image acquisition systems are mostly based on PCs, but in some special occ...[Details]
The DC side reactor of the three-phase multi-switch Buck rectifier circuit is generally required to be large. The AC side input LC filter is used to improve the current waveform and power factor. Thi...[Details]
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