During this circuit board test, I found that one circuit board could never be programmed. So I checked: 1. There are no issues with the power supply and ground. 2. Using the oscilloscope to measure whether the crystal oscillator is oscillating, I found a strange issue: a 24MHz sine wave appeared at the XOUT pin, … Read more
Some signal features are difficult to determine in the time domain, but can be easily analyzed in the frequency domain. For example, the noise characteristics of a DC power supply require the use of Fourier analysis to convert time-domain signals into frequency-domain signals. The ZDS2022 oscilloscope features up to 4Mpts of FFT analysis sample points, … Read more
Click the image above to follow “Easy Learning Electronics” and easily learn electronic knowledge. Easy Learning Electronics Subscription Daily updates of technical articles in the electronics industry and the latest news on microcontrollers, allowing you to learn easily anytime, anywhere. This is a very subtle issue; if not careful, when connecting the oscilloscope, it can … Read more
1. Core Differences Between DC Coupling and AC Coupling 1. DC Coupling Operating Principle: The signal (including both DC and AC components) is directly input to the oscilloscope without filtering. Characteristics: Completely retains the DC offset of the signal (such as static voltage) and AC fluctuations (such as ripple). Displays absolute voltage values (e.g., 5V … Read more
Scientifically selecting bandwidth allows your oscilloscope to “see clearly” and “measure accurately”. Have you encountered these issues? The signal source outputs perfectly, but the waveform displayed on the oscilloscope is distorted, with unclear edges and inaccurate amplitude? The problem often lies in the choice of bandwidth. In the field of electronic measurement, the oscilloscope is … Read more
Recently, in the microcontroller and electronics enthusiast community, a remarkable tool has been highly recommended: EMBO (EMBedded Oscilloscope), a low-cost, all-in-one open source ‘desktop-level’ tester. Today, I will explain what it is, what it can do, how to set it up, and its pros and cons clearly for you~ What is EMBO? EMBO, as the … Read more
Are you still hesitating whether to invest thousands of dollars in an oscilloscope or logic analyzer? Hold on, buck50 is here! buck50 is a set of open-source firmware and Python drivers that allows you to upgrade your $1.5 “Blue Pill” STM32F103 board into a multi-function tester: logic analyzer, function generator, oscilloscope, SPI/I2C/USART bridge, 8-bit parallel … Read more
In the process of hardware development and testing,oscilloscopes are indispensable powerful tools, but many people overlook their good partner —oscilloscopeprobes. If the probe is not selected correctly, the measured signal may be distorted, deformed, or even mislead the debugging party! Even more exaggerated, some high-end probes can sell for hundreds or even thousands of dollars. … Read more
If you do not have a probe, your oscilloscope will be incomplete, as the probe is an essential component that connects the device under test to the oscilloscope. The nature and quality of the probe will affect the accuracy of measurement displays and signal analysis. Probes are crucial for signal integrity, so you must choose … Read more
This article provides a detailed explanation for students who are using or learning about oscilloscopes for the first time.Introduction to Oscilloscopes – Detailed Steps for First-Time Use. 1. What is an oscilloscope used for?? An oscilloscope is an instrument used to observe the relationship between the voltage of electrical signals and time, used for analyzing … Read more