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introduction
The measurement of temperature and humidity is widely used in industrial and agricultural production, daily life and scientific research. However, due to the nonlinear output ...[Details]
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Continuing from the previous article, let’s first explain why the “resonance” phenomenon occurs, as shown in the following figure: If the duty cycle of A1 is 25%, the duty cycle of B2 is 10%, and t...[Details]
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Date: March 26, 2011
Chip: STC12C5A60S2, when using standard speed microcontrollers such as stc89c52, you need to modify the delay value in the program
Clock chip: DS1302
Temperatu...[Details]
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2×2 dot matrix drive circuit
A simple 2×2 dot matrix drive circuit structure is used to illustrate the AC circuit implementation scheme, as shown in Figure 3. In the figure, C1 and C2 are connected...[Details]
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1. Purpose of writing This document is used to record the process of porting U-BOOT-2.14.07 to the MICRO 2440 development board. It is convenient for you to check/reference the relevant setting metho...[Details]
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The ultimate goal of all wearable devices is to provide portable, seamless and almost hands-free "life-enhancing" functions. The most successful wearable devices to date are fitness trackers, which...[Details]
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1) When DC current flows through the three-phase winding of the stator, as shown in Figure 1, only three of the six IGBTs should be in operation, and the three should be located on different sides ...[Details]
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Recently, Mobvoi Vice President of R&D Li Qin and STMicroelectronics Microcontroller Division China Senior Manager Cao Jindong jointly introduced the current cooperation direction of the two parties ...[Details]
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LED (Light Emitting Diode) is one of the fastest growing industries in the world today. The characteristics of LED high brightness, low energy consumption and long life make LED display screens hav...[Details]
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Electric vehicles have entered the "monthly charging era", can you imagine it? With the rapid development of electric vehicle technology, a range of more than 1,000 kilometers is no longer a myth. ...[Details]
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Since the resistance and inductance of the motor armature circuit are small, and the rotating body has a certain mechanical inertia, when the motor is powered on, the armature speed and the corresp...[Details]
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Count how many mobile devices you have around you now? Mobile phones, MP3s, tablet computers, laptops, digital cameras, handheld game consoles, navigation systems, etc. These devices are all powered b...[Details]
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The soil compaction tester is also called the soil firmness tester. It can measure the firmness of the soil in the field and provide effective data support for plant growth. So, how does the soil com...[Details]
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There are many types of power analyzers on the market now. Due to the different focuses of power analyzers, there are relative differences in functions and performances. The selection of power analyz...[Details]
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ETC (Electronic Toll Collection System): It has been at least 6 or 7 years since the concept of ETC was proposed, or even longer. Its technical reserves and relevant national standards are mature, ...[Details]