As 5G networks are rolled out around the world, dynamic spectrum sharing (DSS) between 4G and 5G has become a focus of mobile operators. To quickly and cost-effectively build robust 5G services, DSS i...
The GND of the oscilloscope probe is connected to the GND of the oscilloscope itself. Then, by touching the probe to your hand, you can see a regular waveform with a period of about 20ms. When both fe...
I'm currently working on TMS320F28034 to test the read and write programs of AT24C08, but I can't control the EEPROM chip. I want to make sure if the chip is broken?...
This tutorial shows how to use Visual Studio with VisualGDB to target the STEVAL-IDB011V1 board with a BlueNRG-LP device . We will show how to quickly clone examples from the BlueNRG SDK, edit them, a...
There are actually many examples of displaying text on the screen.
Because RVB2601 supports lvgl, I found a conversion tool
https://lvgl.io/tools/fontconverter
The converted code is as follows:
/*****...
1. Definition of GPIO 2. GPIO mapping 3. GPIO mode one of gpio.OUTPUT, gpio.OPENDRAIN, gpio.INPUT, or gpio.INT (interrupt mode); 4. GPIO related API pin = 1 gpio.mode(pin,gpio.OUTP...[Details]
1. Short-circuit both ends to discharge the capacitor to ensure the safety of the numbers. 2. Turn the function rotary switch to the capacitance (c) measurement position and select the appropriate ra...[Details]
Missile testing equipment
This test equipment is a very important component of the missile weapon system. It is responsible for testing the performance and parameters of the missile and determ...[Details]
This paper introduces the characteristics of the WZJ-1 DC system microcomputer insulation monitoring device and its application in field commissioning. Based on the five years of experience in find...[Details]
The single-phase relay protection tester adopts stainless steel or plastic aluminum chassis, which is beautiful and firm, and has good shock absorption performance. It adopts double carbon brush volt...[Details]
With the rapid development of science and technology, the digital processing of video images and voice is increasingly widely used in military, scientific research, industrial and agricultural prod...[Details]
It is very difficult to predict the future development trend of technology and the way users will use it. In the 1970s, who could have imagined that wireless devices or wireless technology would becom...[Details]
1 Introduction
The surge in IP traffic has led to a growing demand for mobile backhaul construction by operators. China Mobile has chosen PTN as the bearer technology for 3G backhaul, while T-MPL...[Details]
On March 1, Tesla held its first Investor Day event in the company's history at its Gigafactory in Austin, Texas, and the highly anticipated "Master Plan Part 3" was also unveiled.
At the inve...[Details]
1. Introduction With the rapid development of electronic technology, the application of switching power supplies is becoming more and more extensive, and it is developing rapidly in the direction...[Details]
1. Introduction to the principle of matrix keyboard In the previous article, we introduced the use of independent keys. Independent keys require each key to use an IO port for reading. If there are m...[Details]
Apple's current wireless earphones, AirPods 2, were released on March 20, 2019. It has been more than two years since they were updated. In addition, the product looks exactly the same as the first-g...[Details]
Electro-hydraulic servo valve frequency test
The frequency characteristic of the electro-hydraulic flow servo valve is defined as the complex ratio of the valve's no-load control flow to the c...[Details]
According to Korean media TheLec, the next generation of Samsung Galaxy S21 series models may be equipped with an S Pen stylus. At the same time, it has not yet been determined whether the Gala...[Details]
1 Overview Since the induction heating power supply is an important equipment for heat treatment, its control scheme has always attracted much attention. Due to the complex working conditions at ...[Details]
Test/Measurement
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