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Mobile phones radiate electromagnetic waves when in use. Especially for GSM mobile phones, the radiation signal is stronger. This circuit can demonstrate the electromagnetic radiation of mobile pho...[Details]
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In steady current mode, LED display manufacturers must provide overvoltage protection for driver components. The LED is disconnected from the power supply , so that when the power fails, there is...[Details]
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/*Use timer 0, light, digital tube module and two independent buttons to design a second change with clear, pause and start functions. 1. The display format is: Minutes-seconds-0.05 milliseconds (5...[Details]
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The medium frequency variable frequency power supply is based on the microprocessor in MPWM mode and is designed with an active component IGBT module. It uses technologies such as digital frequency...[Details]
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In view of the many problems that the reconnaissance and shooting command teams of our army currently face during field training, such as time-consuming and laborious target setting and display, ...[Details]
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When developing MCU programs for high-reliability applications, engineers often encounter the problem of setting breakpoints. The proper use of breakpoints is a challenge for better programming and M...[Details]
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Last week's lab class was as usual. First of all, the preparation was not done well. The J-Link driver was not installed properly. In addition, due to the problems of the computer in the computer ro...[Details]
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While the battle between lithium iron phosphate and ternary materials is in full swing, lithium manganese iron phosphate, which "integrates multiple technical advantages" and is an important upgrade ...[Details]
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Zhu Jun, deputy chief engineer of SAIC Motor, said that SAIC Motor will soon launch a "battery bank" that separates the car from the battery. At the same time, a battery pack with unified specificati...[Details]
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Qorvo® , Inc. (Nasdaq: QRVO), a leading provider of innovative RF solutions that connect the world, today introduced the first Band 47/Wi-Fi bulk acoustic wave (BAW) coexistence filter and V2X front...[Details]
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As a sequel to the LED driver introduced in the previous article, the main change is that the function of automatically creating device nodes during driver loading is realized by using the mdev mechan...[Details]
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With the continuous changes in market demand, traditional telephones have gradually exposed problems such as single functions and inconvenient dialing. Aiming at the requirements of the dispatching...[Details]
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Today, the OPPO Watch ECG version smartwatch was officially released, priced at 2,499 yuan. It is the first independent communication smartwatch in China to obtain the Class II medical device registr...[Details]
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Alexa is a voice assistant launched by Amazon in 2014, used in smart speakers such as Amazon Echo or Echo Mark. Alexa acts as a central control unit in these devices, responding to the user's voice...[Details]
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Introduction
Embedded systems, with their advantages of high performance, low power consumption and low cost, have greatly changed people's lives. For example, MP3 players, smart phones, digi...[Details]
RF/Wirelessly
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