Chapter 6 serial port
catalogue
1, WIFI module (ESP-01S)
1. Basic information about the module
2. AT instruction
1) Understanding concepts
2) Common AT commands of ESP-01S
3. Programming
1) Configure ESP-01S as Client
📓 How to debug the program? - White box test
2) Configure ESP-01S as Server
2, 4G wireless communication module (EC03-DNC)
1. Basic informa ...
Posted by kml2katz on Tue, 24 May 2022 12:23:44 +0300
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
Hal of STM32 HAL Library_ Detailed explanation of delay
1, Implementation principle
The code generated automatically by MX is extracted from the following part
/*stm32f1xx_it.c*/
//sysTick interrupt function
void SysTick_Handler(void)
{
/* USER CODE BEGIN SysTick_IRQn 0 */
/* USER CODE END SysTick_IRQn 0 */
HAL_IncTick();
/* USER CODE BEGIN SysTick_IRQn 1 */
/* USER CODE END SysTick_I ...
Posted by krispykreme on Thu, 19 May 2022 18:40:39 +0300
[ARM assembly] print pyramid | print inverted triangle
Each Preface
☀️ Hello, I'm Tom Kate. You can call me Tom 🐋 Personal homepage: IM Tom Kate's CSDN blog 🎁 Series column: [ARM embedded foundation] 🌱 Daily sentence:
No one is omniscient. What knowledge can really bring us is that we are not afraid of the unknown.
Write before:
After learning the loop and branch statemen ...
Posted by zildjohn01 on Thu, 19 May 2022 02:53:36 +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
RT thread studio Usage Note: connect to alicloud through 4G module
summary
This article takes you to connect to Alibaba cloud platform based on the 4G module in the previous article
Portal:
RT thread studio notes (VI): use of 4G module SIM7600
https://blog.csdn.net/tigerots/article/details/108132814
reference material:
https://help.aliyun.com/document_detail/89301.html?spm=a2c4g.11186623.6.706.bec8429dZD ...
Posted by asterinex on Tue, 10 May 2022 04:24:35 +0300
Use proteus to simulate 51 microcontroller to realize traffic lights at crossroads
1. Experimental content
1. Components that need to be simulated: 51 single-chip microcomputer, a dual digital tube with dynamic display, and six LED lights.
2. Experiment requirements: Make a traffic light at an intersection, one for each direction, and the traffic lights are required to be lit according to the requirements of traffic. For no ...
Posted by PHP_apprentice on Thu, 05 May 2022 10:09:13 +0300