The electrocardiogram (ECG) signal can objectively reflect the physiological state of various parts of the heart and is a primary basis for diagnosing heart diseases. Due to its characteristics of ease of detection and good intuitiveness, it has been widely researched and applied in clinical medicine. Since 1906, when the first electrocardiogram machine was used … Read more
Have you ever wondered how FPGA technology impacts the devices we use daily? In today’s fast-paced tech landscape, FPGAs are becoming increasingly important. With powerful features and a wide range of applications, FPGAs are driving advancements in modern technology. The purpose of this article is to introduce the inner workings of FPGAs and showcase their … Read more
Imagine you have an electronic “Swiss Army knife” that can be sculpted into any shape, performing various complex computational tasks. Yes, this is FPGA! In simple terms, FPGA is a hardware chip that integrates a large number of programmable logic gates. Through programming, you can define the connections between these logic gates to achieve specific … Read more
This article presents the design of an alcohol concentration detector based on the current situation, which has the following advantages compared to traditional alcohol detectors: (1) Small size, easy to carry; (2) Uses a 12-bit AD conversion chip for high accuracy; (3) Samples 20 times within one cycle and performs smoothing on the sampled data … Read more
Source: Tiger Says Chip Original Author: Tiger Says Chip The CPU plays the role of the “brain” and “commander” in the entire computer system. It is responsible for fetching instructions from memory, decoding them, and executing various logical, arithmetic, control, and data processing tasks. Core Role of the CPU System “Brain” and “Commander” The CPU … Read more
Ultrasonic Radar Detector Difficulty Index: ⭐⭐⭐ Suitable Age: 9+ Introduction The ultrasonic radar detector allows your projects to
Peridogram This function can implement the periodogram and improved periodogram method. The basic syntax is to use the default rectangular window and DFT length to obtain the periodogram. The DFT length is the next power of 2 greater than the signal length. Since the signal is real-valued and of even length, the periodogram is one-sided … Read more
C++ Pointers: Basic Concepts, Pointer Arithmetic, and Pointer Arrays Explained In C++ programming, pointers are an important tool that helps us directly manipulate memory, enhancing the performance and efficiency of the program. This article will provide a detailed introduction to the basic concepts of pointers, pointer arithmetic, and how to use pointer arrays. 1. Basic … Read more
Acquisition Time Acquisition time is the time required for the sample-and-hold circuit to stabilize the sample capacitor voltage within 1 LSB range of the new input value after releasing the hold state.The formula for acquisition time (Tacq) is as follows: Aliasing According to the sampling theorem, input signal frequencies above the Nyquist frequency are referred … Read more
First, what is a Digital-to-Analog Converter (DAC)? A DAC is used to convert digital samples in bit form into analog waveforms of current or voltage. In short, a DAC is used to reconstruct an analog signal from a digital signal. The process of reconstructing an analog signal from a digital signal is as follows. First, … Read more