Does anyone know if there is an ARM7 chip with SPI or SDIO interface, integrated SDRAM and FLASH, and can run uClinux, and the cost is about 6 US dollars? Thank you....
I bought this notebook second-hand on Taobao a long time ago. Some readers may ask, what the hell! You are a computer guy, why do you buy a second-hand notebook? ? ? ? ? ? Haha! The reason is very sim...
I see some idiots on the Internet saying how powerful China is and that it seems to be unifying the world. These people are either bought off or really ignorant. To make a long story short, as an elec...
Last night, I studied the I2S UDA1380 & SD_FatFS routines in Qingke Demo. According to the instructions in the user manual, I plugged in the UDA1380 board, put the SD card on the board, and put Audio....
On February 20, Beijing time, the Falcon 9 mission launched by SpaceX on Sunday was a complete success. SpaceX not only successfully sent the Dragon spacecraft to the International Space Station (ISS)...
[i=s]This post was last edited by littleshrimp on 2021-10-2 12:15[/i]Yesterday, when I was testing the WI-FI routine, it prompted "flow is low wait flow timeout 0", and I suspected that there was a pr...
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
Microcontrollers (MCUs), which are widely used in automotive electronics, are rapidly facing time and cost pressures. The main advantage of using MCUs has always been to create high-level system in...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
With the continuous improvement of the requirements of intelligent building security systems and the continuous improvement of people's safety awareness, indoor anti-theft has gradually attracted peop...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
LED technology has made rapid progress, and improvements in chip design and materials have promoted the development of brighter and more durable light sources, and the scope of light source applica...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
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