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When Amazon launched its first
cloud computing
service, the outside world was not optimistic about this direction, as it had high investment, low profits and many uncertainties. Let's follo...[Details]
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Remarks: Focus on IoT application development and share IoT technology experience. Software platform: IAR6.5 TCP/IP protocol stack: LWIP1.4.1 Hardware platform: STM32F103C8T6 wired communication ...[Details]
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I used STM32CubeMX V4.22.1 to generate a project including EHT and Lwip. The debugging has been abnormal. After careful inspection, the following problems were found: 1. The hardware uses LAN8720A, b...[Details]
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introduction In the general project development process, two or more microcontrollers are often required to communicate to complete data transmission. For example, a quadcopter wirelessly transmits d...[Details]
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This is my first time writing an STM32 program. I have many questions to ask. I want to convert the data of the SO of MAX6675 into the actual temperature and read it out using the serial port tool. I...[Details]
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In the project, CPLD is needed to complete part of the algorithm design. The parameters are given by AVR, so the communication between AVR and CPLD needs to be completed. Therefore, a test program is...[Details]
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STM32 has 2 watchdogs: independent watchdog and window watchdog. Independent watchdog IWDG: A system fault detector that is independent of the system and is not affected by the system because it has ...[Details]
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The calculation formula of the watchdog feeding time (watchdog overflow time) is: Tout=((4*2^prer)*rlr)/40 Tout is the watchdog overflow time (in ms), prer is the watchdog clock prescaler value (...[Details]
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How to convert the pin voltage value into V using the built-in ADC of STM32? V(ADC) = Value(ADC) * V(ref)/4096 (The ADC of STM32 is 12 bits, so the maximum value of the AD word is 4096)
Where V(ADC...[Details]
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;Question requirements: ;Stopwatch timing, press S0 to start timing, and the digital tube will display; ;Press S0 again to stop. If S0 is not pressed to stop after counting for 1 minute, the buzzer w...[Details]
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Please help me analyze the clock cycles occupied by the following delay program. Seek to explain: DELAY: MOV R6, #13 DELAY1: MOV R5, #250 DELAY2: NOP DJNZ R5, DELAY2 DJNZ R6, DEL...[Details]
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China Energy Storage Network News
: Cascade Energy Storage Supports Energy Internet
———Record of the first MWh-level battery energy storage power station in China connected t...[Details]
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In a photovoltaic system, a photovoltaic array is usually formed by connecting multiple components in series and parallel. Due to the inconsistency of the electrical parameters of the components ...[Details]
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China Energy Storage Network News:
On January 14, 2018, Mr. Chen from Hangzhou and his family drove to Liangjiadun, a popular village in Haining City, Zhejiang Province. While they were havin...[Details]
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With the development of modern electronic technology, modern electronic equipment with various microprocessors has been widely used in all walks of life in national production. However, as the f...[Details]