After trying to add a dual-color OLED screen display with an I2C interface to the CH554 development board, this time I'd like to introduce a monochrome LCD screen based on the SPI interface, the LCD51...
I use DS1302 as the external clock of 430 but it is always inaccurate.Case 1:The 1302 is an industrial-grade DS1302Nwith a precision of 32768HZ, +/-5PPM, and a load capacitor of 12.5PF.Result: 10 seco...
I am a newbie to omapl138. I use the original TI board omap l138 lcdk. Since the TI company information is too messy, I hope you can share the omapl138 information for my reference. Thank you very muc...
This is a small program that tests a 164 connected to a serial port. There was no delay statement in the program. The simulation on Keil was normal, but after the circuit was built, a strange phenomen...
It's the one I posted an hour ago! The stepper motor automatically rotates forward and reverse in place and returns to the origin. There are four buttons in total. One, stop after forward rotation. Tw...
The challenge requires measuring the voltage of the power supply (supercapacitor) and including it in the broadcast data. When I wrote the ADC program to measure the power supply voltage, I found that...
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
1. Overview
At present, an information revolution is in the ascendant around the world, led by microelectronics, computers and communication technologies, and centered on information technolog...[Details]
1 Introduction
With the improvement of people's quality of life, lamps are no longer just basic indoor lighting tools, but also a kind of practical art for architectural decoration. When ther...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[Details]
Overview
By transmitting ultrasonic energy into the human body and receiving and processing the returning reflected signals, phased array ultrasound systems can generate images of organs and s...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
One in five car failures are caused by batteries, a problem that will become more serious in the coming years as electric-by-wire, start/stop engine management and hybrid (electric/gas) vehicles be...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
DCDC means DC to DC (conversion of different DC power values). Anything that meets this definition can be called a DCDC converter. Specifically, it means converting the input DC into AC through a s...[Details]
This paper describes the design method of electronic multifunctional watt-hour meter, the key technology of hardware design and the software design process. Taking NEC's μPD78F0338 microcontroller ...[Details]
Preface
DS18B2 is generally used in conjunction with a single-chip microcomputer, and there are few reports on
the interface between
DSP
and DS18B20. Therefore, this article introdu...[Details]
introduction
Frequency characteristic tester
Also known as sweep frequency meter or frequency response analyzer, it uses a rectangular oscilloscope with internal scale as
a displ...[Details]
0 Introduction
In the design and construction of communication systems,
communication power supply
is called the heart of the communication system. The power supply system will dire...[Details]
MCU
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