Dear experts, I want a simple power supply solution for LED lights with a power of about 20W (85~265V input) and wifi or bluetooth intelligent control:surrender:...
gprs dial-up, in the last stage of ppp protocol, ipcp assigns ip address, need to reply to confirm, stuck on this confirmation, is there any expert to answer, please add my QQ[color=#FF0000]982620[/co...
[i=s]This post was last edited by sonicfirr on 2022-3-3 16:04[/i]I finally received the LicheeRV 86 board, and quickly unboxed it to experience it.
1. Unboxing and inspectionHold it in your hand and c...
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]
1. Problem When developing STM32 with IAR, I found that I could not print floating point numbers by redirecting printf to the serial port. The code is as follows: The output is as follows: It can...[Details]
What is SYSTICK: This is a 24-bit system tick timer, SysTick, with automatic reload and overflow interrupt functions. All microcontrollers based on the Cortex_M3 processor can obtain a certain time ...[Details]
Independent watchdog (IWDG) and low power mode are often used in STM32 development. The watchdog is to detect and solve faults caused by software errors, and the low power mode is to enter sleep mode...[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]
Homemade LED Electronics Clocks can be seen in many electronic newspapers and magazines, but most of them need to reset the time and other parameters after power failure, which brings a lot of inco...[Details]
In this example, a single-byte binary number (0X20) is converted into uncompressed BCD code and stored in 0X25, 0X24, and 0X23, where 0X25 is the hundreds place and 0X23 is the ones place. main: MOV ...[Details]
Infrared remote control is the most widely used remote control method. Infrared remote control devices have the characteristics of small size, low power consumption, strong functions and low cost. Th...[Details]
The software supports almost all existing AVR series Support AT90S1200, AT90S2313, AT90S2323, AT90S2343, AT90S4414, AT90S4434, AT90S8515, AT90S8535 Flash m IC ro Support AT90S2323, AT90S2343, AT90S2...[Details]
msvr3 turns on (`-msvr4') or off (`-msvr3') compiler extensions related to System V fourth edition (SVr4). The effects are as follows: * Which assembly syntax to output (you can select this ...[Details]
Today's laptops are becoming ultra-thin, and the biggest design challenge this design trend brings to system engineers is the ultra-thin power adapter. How to design a power supply that can be inst...[Details]
Now it can be said that the single-chip microcomputer is in a period of flourishing and contending. All the major chip manufacturing companies in the world have launched their own single-chip mic...[Details]
Microcontrollers are now everywhere, with a wide variety of types, making developers overwhelmed, and the development is also quite rapid. From the 1980s, from the 4-bit and 8-bit microcontrollers at...[Details]
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