I want to use SAFEARRAY to create a two-dimensional array to store all the information in the database. The database information has three formats: integer, string, and time. I found that it works fin...
[i=s]This post was last edited by dql2016 on 2017-10-6 18:52[/i] WIO Link does not have many onboard resources. It has reserved 3 IOs and 3 commonly used interfaces, which can also meet the needs of s...
Hi guys, I need your help! I want to do vector control of brushless DC motor recently, so I use TI routine PMSM3_1, and want to modify it to achieve it. But now when debugging to the first step, using...
The resistors and capacitors used in wireless transmission modules are generally 0402, which I find a bit difficult to solder. If I don't have strict requirements on the size of the module, can I use ...
Some pickups are very cheap, while others are very expensive. I have a project that requires a pickup, but I don't know how to select one, and I don't know how much the performance difference is. Are ...
Improvements to the DHT driver by netizens, using asynchronous methods to read DHT sensors to solve the blocking problem.https://github.com/wieck/micropython/co ... 6929d81cb7...
In 2017,
Sanan Optoelectronics
achieved sales revenue of 8.394 billion yuan, operating profit of 3.856 billion yuan, and net profit attributable to shareholders of the parent company of 3.1...[Details]
In the actual project development process, it is common to encounter modifications to the hardware circuit, and then the modified part requires the modification of the driver. Thinking about the comi...[Details]
1. Initial understanding of FSMC: FSMC consists of 4 modules: (1) AHB interface (including FSMC configuration register) (2) NOR flash memory and PSRAM controller (when driving LCD, LCD is like a PSRA...[Details]
Although it is early summer, the Chinese smartphone market is still in the cold winter, just like Beijing in April with snow. For mobile phone brands caught in the middle, the cold is even more bit...[Details]
This example is mainly to familiarize yourself with the register configuration of Timer A and the configuration method of IAR. /*********************************************** Program function: re...[Details]
This routine is also a classic routine on the development board. I modified the framework of the program to make it more suitable for future calls. The specific 4*4 keyboard scanning principle is rel...[Details]
Site conditions: 1. AD acquisition, DMA transmission; AD is set to single-channel continuous mode, DMA is set to single-shot mode. The upper threshold of the AD analog watchdog setting is less than t...[Details]
I have been working on a stm32 project recently and have been struggling with its startup method. I saw a good article and reposted it. The format of the original article is not very good, and there...[Details]
STM32 has three startup modes. In RM0008 downloaded from the ST official website, you can find the startup-related configuration instructions: Translated into Chinese: The storage media corresp...[Details]
Here is the temperature added in the previous chapter The above figure is the temperature calculation formula: where Vsense is the ADC value collected from the temperature channel. The stm32f407 ...[Details]
;The hardware connection circuit of the 51 single-chip microcomputer is as follows: ;P1.3 and P1.4 are each connected to a button; ;P0.0 and P0.3 are each connected to a light-emitting diode; ;P2.0~P...[Details]
On January 30, the Tai'an Sports College coal-to-electricity thermal storage heating project designed and constructed by Shandong CITIC Energy successfully passed the acceptance. The acceptance tea...[Details]
The top row of pins is the row, and the bottom row of pins is the column. The row is the LED anode. Each row and column is controlled by four 74HC573, each controlling 8 pins. At the sa...[Details]
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