Programming VIP

Station B haas development tutorial Teaching video link of station B 1. Hardware diagram 2. Read the register value of spi device Case description: This case is a reading and writing test of spi equipment, which uses different functions to complete two reading and writing methods.When reading and writing spi, you need to operate the ...

Background introduction Recently, I'm studying lvgl, an open-source embedded image display framework, which is enough to support some resource deficient MCU to display some professional interfaces, such as the following And this Isn't it cool Put down Lvgl and don't watch for the time being. Because it is a user interface, most screens can ...

1. Preface A walker asked the old Taoist priest, "what did you do before you got the Tao?" Old Taoist priest: "chop firewood, carry water and cook." The walker asked, "what about after gaining the Tao?" Old Taoist priest: "chop firewood, carry water and cook." The walker asked again, "what is T ...

brief introduction HardwareSerial library is a serial driver library written in c + + and applied to esp32 Arduino application environment. After installing the Arduino development environment of ESP32, we have integrated this serial operation library, which can be directly referenced in practical application. Note: ESP32 has three UART ports ...

I Introduction to CJSON 1.1 JSON(JavaScript Object Notation) is a lightweight text data exchange format, which is easy to read. At the same time, it is also easy for machine analysis and generation. Although JSON is a subset of Javascript, it is a language independent text format and adopts some habits similar to the C language family. 1.2 ...

This article was originally released by RT thread user @ chengjili and is used to participate in the n32g457 RT thread design competition jointly launched by RT thread and national technology. The original text: https://club.rt-thread.org/as...This design is used to participate in the innovation "core" engine - national technology n32 ...

01 overview NB-IoT NB IOT (Narrow Band Internet of Things) is a narrowband Internet of things technology based on cell, which supports low-power devices to connect cellular data in low-power wide area Internet of things (LPWAN). LWM2M protocol The full name of LwM2M is lightweight machine to machine. It is a lightweight protocol formulate ...

More exchanges, welcome tiktok, 81849645041 objective Familiar with the working principle of SD card and SDIO. Master the reading and writing of SD card. principle Most single chip microcomputer systems need large capacity storage devices to store data. At present, U disk, FLASH chip, SD card and so on are commonly used. They have their own ...

LCD with 8080 timing There are four control lines of 8080: RD write enable, WR read enable, DC data / command and CS chip selection 8080 bus has many interfaces: 8 / 9 / 16 / 18 bit interface 8080 general timing Read timing LCD_CS = 0; //Film selection LCD_DC = 1; //Read data LCD_WR = 1; //No writing LCD_RD = 0; //Start readin ...

More exchanges, welcome tiktok, 81849645041 target The slave device EEPROM can read and write data. principle EEPROM is a memory that does not lose data after power failure. It is often used to store some configuration information for loading when the system is powered on again. The most commonly used communication mode of EEPROM chip is I2 ...