The LED dot matrix screen is composed of several independent LEDs, which are arranged in the form of matrix
The structure of LED dot matrix screen is similar to that of nixie tube, which only arranges the pixels of each column in an "8" shape
Like the nixie tube, LED dot matrix screen has two connecti ...
Posted by hoogie on Fri, 20 May 2022 23:08:03 +0300
Although H743 has provided a lot of internal RAM, my friends who read this article must understand that even the most generous internal RAM is useful, so we need to expand ram. At this time, there are two options, SDRAM or SRAM, which can be used. I will use two bloggers to bring their configuration processes respectively!
Posted by sub7av on Wed, 18 May 2022 01:28:58 +0300
A junior old fried dough stick. When I was a freshman, I applied to stay in school in time for the 19-year national competition. After the self-study (rowing) started in January, I visited with my teammates about the preparation of other teams and went home happily. (I didn't buy any materials). Due to the epidemic, the pro ...
Posted by beeman000 on Sun, 15 May 2022 10:41:59 +0300
Development board: CT117E-M4(STM32G431RBT6) Development environment: CubeMX+Keil5 Involved topics: the second real question of the 13th Blue Bridge Cup Embedded Provincial Competition Winners of the first round:
CubeMX configuration, main function code and description:
1. CubeMX configuration (the s ...
Posted by jibosh on Sun, 15 May 2022 06:21:47 +0300
1.1 Introduction to I2C bus
The I2C (Inter-Integrated Circuit) bus is a two-wire serial bus developed by PHILIPS, which is used to connect microcontrollers and their peripheral devices. It is a serial bus composed of data line SDA and clock line SCL, which can send and receive data. Two-way transmission is performed be ...
Posted by lanbor on Sat, 14 May 2022 12:49:37 +0300
STM32RCT6+RC522+OLED, swipe the card to display the card number
Only so much has been done for the time being, and it will continue to be updated later
This article mainly provides ideas, detailed code can leave a message email, I will send it one by one.
Prepare the picture on the left c Documents
Tip: the followin ...
Posted by Nicolas T on Fri, 13 May 2022 22:13:49 +0300
Recently, a small project used the Fuchs remote control (SBUS protocol used) to realize the simple control of the car (mobile, lighting, different working modes, etc.) through each channel of the remote control. I'd like to share a little experience with you. There are many materials on SBUS online. This article is more ...
Posted by mega77 on Mon, 09 May 2022 07:51:53 +0300
When single-chip computer develops a simple human-machine interface, if the program is not well organized, it can easily lead to bloated code, difficult to read, or even change the error situation of the side running. CAFace is the organization specification of such an interface program, or the user interface management software ...
Posted by ctsiow on Sat, 07 May 2022 19:40:30 +0300
Yang Zhi's single chip microcomputer column has many pictures and explanations, so as to reduce some pain on the way of learning single chip microcomputer Although it's 14 days, I've been getting closer for half a month and only half. After looking at the knowledge behind me, I can't say much. I'm already buying STM32 board, an ...
Posted by intermediate on Fri, 06 May 2022 03:16:16 +0300
High feeling has chased the dawn and clouds, and does not dream with pear flowers———— Su Shi's "moon on the West River: plum blossom"
HTU21 temperature and humidity sensor is made of high-performance humidity sensing elements based on Humirel in France. HTU21 series modules ...
Posted by tom92 on Wed, 04 May 2022 11:39:41 +0300