Abstract: This paper introduces the SPWM principle of the air conditioner inverter, and takes the electronic control system composed of Siemens special single-chip microcomputer C504 as an example to ...
maxResponse threshold I saw in the manual that it uses a function, but the result I tested is different from theirs. Can you provide me some guidance?...
1. Myside format.
Transmission is in UDP format.
2、MQTT。
Transmission is in TCP format.
3、MODBUS-TCP。
The gateway connects to the cloud server via TCP, and sends the MAC address or slave number after ...
I have a question for you brothers about the problem of installing drivers for USB devices. I have encountered a problem in XP, Vista, and Win7. After installing the driver for the USB device, it can ...
Rome wasn't built in a day, and neither was power supply. Let's start with the basics! I often see people in the forum find some cheap and fun electronic parts, and I envy them. So when I saw @dcexper...
Hehe, Google's operating system is still in the stage of sending wrong text messages frequently in recent days, but it's so rare that I can't help showing it off! I took a few photos to show off. Brot...
Dong Yang, executive vice president of the China Association of Automobile Manufacturers, said on the 26th that according to the authorization of the Ministry of Industry and Information Technology...[Details]
In our common sense, the word technology often has two definitions. The first is the technology sealed in the laboratory. They are like flowers on the mountain top. Only a few people on the mountai...[Details]
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]
Regarding the PHY construction of LWIP, the PHY chip used is LAN8720A, RMII mode. Regarding the hardware connection part, the Atomic board F407 is used, and the hardware connection is as follows: ...[Details]
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]
Overview
Lightning is a strong discharge phenomenon that occurs between thunderstorm clouds and between thunderstorm clouds and the earth due to severe convective weather. Lightning is gen...[Details]
1. FSMC Brief FSMC, the Flexible Static Storage Controller, is capable of interfacing with synchronous or asynchronous memories and 16-bit PC memory cards. The FSMC interface of STM32 s...[Details]
On May 8,
Google
I/O 2018 Developer Conference was held as scheduled in Mountain View, California. In the second year of the full promotion of the "AI first" strategy, artificial intelligen...[Details]
Use the STM32 timer input capture module to control 3-way ultrasonic sensors. The ultrasonic sensor used this time is the common HC-SR04, which is often used in the obstacle avoidance system of smal...[Details]
OSC_IN and OSC_OUT are external crystal pins by default. If you do not use an external crystal oscillator on the STM32, how to connect OSC_IN and OSC_OUT If you use the internal RC oscillator instead...[Details]
The first one is a DMA mode of multiple channel acquisition void ADC_DMA_Config(void) { ADC_InitTypeDef ADC_InitStructure; RCC_HSICmd(ENABLE); while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET); ...[Details]
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]
Mixed reality (augmented and virtual reality) is the next computing frontier after the PC in the 1970s, the web in the 1990s, and mobile platforms in the 21st century.
MR
is the most unique...[Details]
The CAN of the STM32 ordinary chip has 14 filter groups (the interconnected type has 28 filter groups) to filter the received frames. Each filter group includes 2 configurable 32-bit registers: CAN_F...[Details]