8x8 dot matrix display graphics or dynamic display string

8x8 lattice Display principle 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

[SRAM] CubeMX is configured with STM32H743+IS61WV204816 external expansion SRAM

1, Foreword 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! The ...

Posted by sub7av on Wed, 18 May 2022 01:28:58 +0300

[video game preparation] adjustable PWM output based on STM32 control + LCD display

situation analysis 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

The second real question of the 13th Blue Bridge Cup Embedded Provincial Competition (giant simplified code based on HAL library + super detailed explanation)

foreword Related instructions: 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

STM32CubeMX series | I2C bus

I2C bus 1 Introduction 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, RFID class is equipped with an access control system

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. preparation Prepare the picture on the left c Documents Tip: the followin ...

Posted by Nicolas T on Fri, 13 May 2022 22:13:49 +0300

SBUS waveform analysis and communication implementation based on stm32 and Fuchs remote controller

brief introduction 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

CAFace Micro User Interface Management Module

Introduction: 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

The fourth day of playing 51 single chip microcomputer in 14 days -- want to see the wind, want to see the sea, and want to see how the IO port plays input

preface 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

STM32CubeMX - HTU21D temperature and humidity sensor

preface 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" 1, Introduction 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