I used stm32 to send pwm to A3947 to control the stepper motor. I didn't use optocoupler isolation. I directly connected the GND of the microcontroller to the GND of the DC 24V, because I needed to us...
In embedded development, some basic skills are required. In fact, these skills are relatively low-level. First of all, you need to master a language, C. With C as a foundation, you are basically halfw...
1. The general trend of wireless microcontrollers and wireless networksAfter the chip giant TI acquired CHIPCON, a pioneer in wireless microcontrollers , it launched a new generation of ZigBee wireles...
The power factor correction (PFC) circuit and inverter circuit in telecom rectifiers and server power supply units (PSUs) need to detect the current signal on the high voltage side to the controller o...
Mainly through 1: lowering the system clock, there are three clocks to choose from. 2: lowering the system voltage 3.6v voltage but when programming the flash, the required voltage must be greater tha...
Recently Updatedpy/obj: Optimise mp_obj_get_type for immediate objs with repr A and C.
py/obj: Add MICROPY_OBJ_IMMEDIATE_OBJS option to reduce code size.
py/obj.h: Redefine qstr object encoding to add...
Conventional test instruments and control devices have been replaced by more advanced intelligent instruments, which has brought about tremendous changes in the distance, function, accuracy and autom...[Details]
For a long time, the high-end intelligent driving ability lost by Ji Krypton 001 has been the core weakness that has been frantically attacked by the majority of car owners and competitors. As the ...[Details]
I finally had time to update recently. I spent a few days to make a little thing. Although there are many ways to implement it circulating on the Internet, I have never tried it. While I have time, I...[Details]
According to foreign media reports, despite the global pandemic and economic challenges, 5G user growth rate is still four times that of 4G LTE. According to data provided by Omdia, the world ad...[Details]
cutting edge Regarding the STM32 sampling problem, I believe many people have encountered such a problem, whether it is about the underlying configuration of the ADC or the choice of the ADC sampling...[Details]
As systems get smaller, every square millimeter of printed circuit board (PCB) area counts. At the same time, as the demand for data increases, more sensors need to be monitored. This article will ...[Details]
On September 2, Xiaomi announced that it will hold a new product launch conference on September 7 to officially launch POCO X3. It was officially announced that Xiaomi POCO X3 will be the ...[Details]
In recent years, exquisite, practical, convenient and fast electric kettles have begun to enter thousands of households, and China has become the world's largest electric kettle market. However, acco...[Details]
As we all know, EMC refers to electromagnetic compatibility testing, which refers to the ability of the electromagnetic energy generated by a device to neither interfere with other devices nor be int...[Details]
introduction
Photoelectric sensors widely used in the field of industrial automation are generally switch-type and are called photoelectric switches. Photoelectric sensors are composed of ...[Details]
From March 15 to 17, the China Electric Vehicle Hundred People Forum (2024) with the theme of "Consolidating and Expanding the Advantages of New Energy Vehicle Development" was held in Beijing. Li...[Details]
1 Introduction
Pulse meter is a common electronic electricity meter on the user side of the power system. For remote electronic meter reading system, reliable and accurate measurement of pulse me...[Details]
Oscilloscope Introduction Oscilloscopes can be divided into two categories: analog oscilloscopes and digital oscilloscopes. Analog oscilloscopes display the measured signal in a continuous manner. Th...[Details]
On October 22, Huawei nova 9 was unveiled in Europe with a starting price of 499 euros (approximately RMB 3,700). This phone will be officially on sale in Europe on November 2. According to t...[Details]
Memory-related file systems If we want to use files in rootfs to observe memory or change memory behavior The file system to which the file to be observed belongs is the kernel file system // "Linux ...[Details]
stm32/stm8
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