I want to run an Android project on a real device, but the following picture appears:There is no mobile phone logo on it, and the minimum API is 18. Is it because my mobile phone version does not supp...
Hardware modification expert Sebastian Staacks has accomplished the seemingly impossible: using a basic 32-gigabyte Game Boy cartridge and an ESP8266 microcontroller, he has given the Game Boy the abi...
[align=center][b][size=3]Dear, how much time do you spend on the subway every day? [/size][/b][/align][size=3][align=center][b]I always feel that taking the subway is a waste of time[/b][/align][/size...
void ReceiveAck(void) {unsigned char i = 0;SCL_1;Delay(5);DIR_IN;while ((SDA_IN == 0x01 /*sda==1*/)(i255)/*convenient for debugging, can be omitted*/){i++;}DIR_OUT;SCL_0;Delay(5); }
This is a subrouti...
The ADC module is a 12-bit pipelined analog-to-digital converter used for data acquisition in the control loop. This paper proposes a method to improve the accuracy of TMS320F2812ADC, which effectivel...
In traditional audio playback systems, amplifiers are closed-loop and their total harmonic distortion is generally as low as 0.01% or even lower, while electro-acoustic devices are open-loop and their...
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 concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[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]
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]
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]
The embedded network module series products of Yingchuang Company all have a streamlined ISA expansion bus, which usually includes several address buses, 8-bit data buses, read and write control li...[Details]
1. Introduction
Stepper motor is a basic component that converts electrical energy into kinetic energy. It has been widely used in a variety of electromechanical equipment, such as various machine...[Details]
1 Theoretical Analysis
Ultrasonic waves
When propagating in a suspension, the ultrasonic waves that encounter the suspended particles are scattered and attenuated at the interface, an...[Details]
Designing with FPGA, DSP or microprocessor is a critical part of the design and also takes the most time. System-level designers can benefit greatly by focusing their main efforts on system desig...[Details]
The construction of voltage and current feedback amplifier application circuits is generally the same, except for a few key points.
Current feedback amplifiers have higher sl...[Details]
Because we often design RF or low-frequency analog circuits, switching power supplies are rarely used in designs. However, in several cases, switching power supplies must be used to meet the perfor...[Details]
If a fixed clock is not used to initialize the on-time, but a detection circuit is used to effectively "sense" the first minimum or valley of the MOSFET (VDS) drain-source voltage and only start th...[Details]
Linux and Android
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