In order to observe the test results conveniently, I am used to using LCD to display. The code was transplanted from other development boards tested before. According to convention, as long as the pin...
https://detail.tmall.com/item.htm?spm=a1z10.5-b.w4011-18883888937.65.c8162af80RiU46id=576897750536rn=2113700bcd9e6682e833730a455c6a29abbucket=19skuId=3880525425703This one is 80% new. I replaced the o...
When the indoor CO2 concentration exceeds 1000 ppm , the human body will experience symptoms such as drowsiness, shortness of breath, lack of concentration , etc. If the concentration gradually increa...
In this picture, what are the changes in the collector voltages of the two transistors? What are the functions of the operational amplifier at the front end and VR10?...
This is the formula in the picture above. What I don't understand is how the VL drawn with a red line is merged into the formula below. Could you please teach me?...
GD32E231C-START unboxing. After waiting for so long, I finally received the board and sample today. The packaging is very simple.Black text on a white board. Next, you can build the circuit while prog...
Data shows that in the first half of this year, the country's newly installed photovoltaic capacity was 11.4GW, of which distributed photovoltaic capacity accounted for more than one-third of the t...[Details]
The four-element infrared detector uses photosensitive elements, and the alarm is triggered only when each detector detects a signal. It has stronger anti-false alarm capability and better detection p...[Details]
The Nidec Group has a rich lineup of development and manufacturing technologies for a large number of parts, modules and units related to the service areas.
Speaking of robots, they used...[Details]
According to a recent report, smartphone sales in the Chinese market fell 14% year-on-year in the first quarter of 2022. Counterpoint Research shared some data that shows that China's smartphone ma...[Details]
0 Introduction
With the development of urban residential housing, the demand for meters in buildings is increasing. The traditional metering method of hanging multiple electricity meters togeth...[Details]
Earlier media reports said that Apple's shipment estimates for 5G-enabled iPhones may be much lower than expected. Citing sources familiar with Apple's supply chain partners, the media reported tha...[Details]
How to find the best test cable among many choices ? Times Microwave Systems introduces you to an ideal choice designed for production testing and laboratory applications - SilverLine test cable. T...[Details]
According to foreign media reports, Xiaomi topped the European smartphone shipment list for the first time. The company led the market in the second quarter of this year, with its market share reachi...[Details]
How to use a digital multimeter to measure large resistors
When measuring resistance with a DT-830 digital multimeter, when the measured resistance value exceeds 20MΩ, the meter he...[Details]
The automatic test system for airborne electronic equipment needs to perform functional testing on hundreds of components, involving many types and quantities of signals. These signals are divided ...[Details]
Here is a simple and easy to build 12V car battery charger circuit diagram:
Components List:
The above circuit is claimed to have the ability to protect the battery from overc...[Details]
Bandwidth, sampling rate, and storage depth are the three key indicators of an oscilloscope. 1. Bandwidth Bandwidth is the most important parameter of an oscilloscope and also a parameter of grad...[Details]
Sun Jialong, Bao Haixia
Science and Technology Daily reporter Guo Guozhong
The reporter learned from Changzhou University on the 21st that the school's scientific research team has ...[Details]
After learning the codes for these two key modes, we now decide to encapsulate these two modes into one function, and then use parameters to select whether to support continuous pressing or not. 1...[Details]
The auto-coupling step-down starting control cabinet is a commonly used motor starting device. It uses an autotransformer to reduce the starting voltage of the motor, thereby reducing the starting ...[Details]
stm32/stm8
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