The program is as follows. I connected the cs pin to vcc and used a 12864 with a 5v voltage. I previously suspected that the display was not displayed because the pin was only 3.3v, but then I added a...
Rapid Engineering Prototype (REP) #006 shows a custom solution for the MAX2269 linear power amplifier (PA) tuned for Japanese cellular CDMA applications. The PA is capable of providing 17% PAE at +16d...
I'm working on a project recently, and I need to use 12864 display in the project. I usually think this is a relatively simple program, but after I downloaded the program to the board, no matter how I...
In recent years, chip shortages have been a hot topic in the industry. Despite the continuous expansion of production by international giants such as TSMC, the chip shortage problem has not been allev...
I made a board using C8051F120, and a problem occurred during debugging. When initializing the port, I set P0~P3 as ordinary IO ports and set them to push-pull, and set the lower two bits of P4 and P5...
We have a lot of experience but also a lot of shortcomings. We hope to combine the forum topics, strengthen communication in the group, and make progress together. We look forward to your joining. QQ ...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect 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]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
