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Buttons one, two, and three correspond to different functions on the 51 microcontroller For example, marquee, buzzer, breathing light, interruption, etc. #define FSCLK 11059200 //Crystal frequenc...[Details]
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The basic functions of smart home include smart home appliance control, fire alarm, gas leak detection, smart water heater, etc. At present, tens of millions of households around the world have ins...[Details]
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Nikkei Asia reported on May 31 that due to the COVID-19 pandemic, the global chip crunch and supply chain disruptions, home appliances are in short supply across Japan, and Japanese consumers have to...[Details]
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According to foreign media 91Mobile, a Xiaomi mobile phone patent with a rotating selfie camera has been approved. The patent was submitted in November 2020 and was publicly included by the China Nat...[Details]
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UM2082F08 is an ultra-low power consumption 8-bit SOC chip based on a single-cycle 8051 core and has a three-channel low-frequency wireless wake-up ASK reception function. The chip can detect LF (low...[Details]
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When using FreeRTOS with stm32f4-discovery, a key interrupt is set , but the program gets stuck after the interrupt occurs. Through debugging, it is found that the program is stuck in the configASSER...[Details]
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June 26, 2023 - Shanghai Hejian Industrial Software Group Co., Ltd. ("Hejian Industrial Software" for short) and Beijing Huada Jiutian Technology Co., Ltd. ("Huajian Jiutian" for short) jointly annou...[Details]
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During the mortar live-fire shooting, it is common for mortar shells to misfire. If a mortar shell does not fire, it is strictly forbidden to reload the shell. If reloading, it is easy to cause a cha...[Details]
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The HT824 keypad uses serial communication with the mainboard. When doing high and low temperature tests, communication problems often occur. Using an oscilloscope to track the communication waveform...[Details]
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Half the battle for a perfect jitter measurement is setting up the oscilloscope. The goal is to capture and display the signal as it truly appears in the system environment. Since every lab has a rea...[Details]
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Abstract: With the increasing application of CAN bus, engineers have to face a headache of how to choose the appropriate network topology under various working conditions. Here are several mainstream...[Details]
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/******************************* RB0 of PORTB can be used as an external interrupt signal input, and can generate an interrupt response to the rising or falling edge transition of the input signal. ...[Details]
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The introduction of a new technology usually requires a transition process, during which users constantly test the practical and impractical factors in the new technology. This article aims to clar...[Details]
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1 System Overview
Currently, the onboard resource detection of FPGA development boards adopts the method of downloading examples to the development board for detection. Different examples are general...[Details]
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What is a contactor?
They are electromechanical switches that, while similar to relays, perform heavy-duty applications that require higher current carrying capabilities. Contactors provide lo...[Details]