I bought a USB serial port adapter with iBeacon base station function. The device is based on TI's CC2540 chip.Generally speaking, installing the driver for this device is like using a wireless mouse....
I'm ashamed to say that I didn't understand the user manual very well. Although my settings can use AD sampling, I don't know how the specific sampling frequency is calculated....
We all know that X86 laptops have the technology to dynamically adjust the main frequency, so how can we achieve this on ARM? The best answer of the day will be awarded with 200 ChipCoins [[i] This po...
[table=98%,rgb(239, 245, 249)] [tr][td]Hi everyone, I use LPC1768 SSP0 again, configured as SPI, and found that the voltage waveform of MOSI MISO is not high or low level. As shown in the figure below...
[align=left][font=微软雅黑][size=3] [/size][/font][/align][align=left][font=微软雅黑][size=3]The drizzle is like silk, moistening everything silently. With the coolness brought by the summer drizzle, we have ...
I use STM8S207 IIC with M41T0M6 clock chip.When there is interference, IIC cannot read, and it is dead, but it cannot be restored. I use the official library of STM8.Please ask all the masters, is the...
Blood pressure is one of the important physiological parameters of the human body. Accurate measurement of it is conducive to early detection and identification of hypertension types, and to the pro...[Details]
Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
introduction
Mobile phones, MP3 players, hard disk players, digital cameras, PDAs and other devices are all controlled by navigation keys. Currently, the more popular navigation key contro...[Details]
introduction
Controller Area Network (CAN) is a bus standard proposed by Bosch of Germany to solve the information communication between automotive electronic control units. With its excel...[Details]
Overview
In recent years, the vigorous development of integrated circuits has created a huge space for the research and application of digital circuits. FPGA has low power consumption, high re...[Details]
Introduction
The MAX2116 P1db data is measured at specific combinations of RF and baseband gain over the adjustable range of these two gains. These data can be used to select gain control se...[Details]
Abstract:
Using TMS320F2812 DSP chip as the control unit, without any gate control device control, the rich software resources of DSP 2812 are used to achieve equal precision measurement. A...[Details]
Abstract: By controlling the supply voltage of the radio frequency (RF) power amplifier (PA) in a CDMA/WCDMA cellular phone, the PA efficiency can be improved, heat generation can be reduced, and t...[Details]
Anyone who has owned a laptop computer will have noticed that when running on battery power, their portable device behaves differently than when running on AC mains power—the display dims, the proc...[Details]
0 Introduction
At present, most of the automatic blood pressure monitoring systems used in hospitals are imported equipment, which are expensive and increase the cost of medical treatment. The...[Details]
Abstract
: This paper introduces the general structure of the driver under the currently popular open source embedded operating system μClinux, as well as the connection between the touch scr...[Details]
In the process of RF transceiver application, adjusting the processing gain (PG) of the direct sequence spread spectrum communication system (DSSS) can obtain excellent anti-noise performance, whic...[Details]
Portable products are generally powered by batteries. Due to cost and size considerations, there is a trend to reduce the number and size of batteries used in design. If the number of batteries is ...[Details]
1 Introduction
In many communication systems, the base station usually sends a training sequence for the terminal to synchronize with the system. The synchronization here includes time syn...[Details]
"Where am I? Where am I going? Where is he/she? How far is he/she from me?..." Do you often have such questions like me? In fact, who can deny that these are questions that we often think about, ev...[Details]