I use PIC16F877A, external 4M crystal oscillator, division ratio is 128 (OPTION=0X0F; //Open RB port weak pull-up, divide the frequency to WDT, division ratio is 128)
For reference, the subroutine for...
Changes since 7.0.0Initial port for Raspberry Pi Broadcom-based boards.
Preliminary support for asyncio cooperative multitasking.
bitmaptools: dithering and alphablend are new./li
keypad.Events now in...
I wrote and modified a program to use msp430g2553 to control nrf24l01. The following is the program of the receiving end. It has been tested and can be used. You can refer to it if you need it. #inclu...
I have found the formulas for ADC's sample-hold time and conversion time. Sample-hold time = 4×N×ADC12CLK. Conversion time = 13×(ADC12CLK/Fadc12clk). My question now is how to determine the values of ...
When I used STM8S207, I found that PD6 could enter interrupt normally, but PD7 could not. The settings were as follows:GPIO_Init(GPIOD, GPIO_PIN_7, GPIO_MODE_IN_PU_IT);I thought that the option byte n...
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
Until now, designers have faced a trade-off in ADC selection. Pipeline converters offer high resolution and wide dynamic range, but their power consumption is quite high. The alternative, discrete ...[Details]
No other sector is feeling the pressure for change more acutely than the healthcare industry. Healthcare organizations and services are desperate to reduce costs, but the challenge is to do so without...[Details]
Overview
PS pressure sensor is an electronic pressure sensor made of semiconductor diaphragm structure. It can convert the physical quantity of air pressure into electrical signals and detect ...[Details]
The 21st century is the century of life and health. The rapid progress of life sciences continues to promote human understanding of their own health and diseases. How to develop innovative medical ele...[Details]
In the test of the electronic ignition module, in order to simulate the real working condition of the electronic ignition system, the electronic ignition module is often placed in an environment hi...[Details]
Infrared remote control is widely used in household appliances, security, industrial control and people's daily life, especially household appliances and security.
When there are many TVs, VCD...[Details]
Preface
TD-SCDMA mobile communication standard is the world's third-generation mobile communication standard with independent intellectual property rights in my country. It has become a highli...[Details]
As the demand for wireless and wired services in the communications market continues to grow, the telecommunications industry recognizes the need to break away from the shackles of proprietary or p...[Details]
Popular consumer electronics products such as game consoles, digital televisions (DTVs) and personal computers are becoming more and more versatile and feature higher performance. The enhanced data...[Details]
With the development of supermarket industry and the strengthening of loss prevention awareness, the use of electronic anti-theft equipment (EAS) has become very popular in various parts of the countr...[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
When we run or ride a bicycle, the vibration of our arms often makes the images displayed on the electronic devices in our hands look blurry. Long-term viewing (such as watchi...[Details]
Preface
Phase-modulated pulse signals can achieve a large compression ratio. As a commonly used pulse compression signal, they are widely used in modern radar and communication systems. Wi...[Details]
Two doctors in Chennai, a major technology city in southern India, have developed a generator installed in the high heels. The generator generates weak electricity through the vibration and pressure o...[Details]
Analogue and Mixed Signal
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