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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 ...

Tip: as a partner of Espressif in Greater China and a partner of sigmastar VAD, we not only carefully sorted out the problems you may encounter in the development process, but also a concise tutorial to get started quickly for the reference of development partners. At the same time, it also carefully sorted out the main characteristics and appl ...

1, Advantages and disadvantages of TCP and UDP 1. TCP is connection oriented (for example, dial up to establish a connection before making a call); UDP is connectionless, that is, there is no need to establish a connection before sending data. 2. TCP provides reliable services. In other words, the data transmitted through TCP connection i ...

CSDN big bug, why can't my "no need" format be used? It's too uncomfortable. All typesetting "disorderly", "orderly" and "to do" cannot be used. The layout below may be a little ugly. If you feel inconvenient to watch, you can find a backup on github. ESP32 MCU learning notes - 01 - gpio&ledc&u ...

In the previous section, Arduino+ESP32 drives the GC9A01 circular LCD (one), We've already ported the arduino GFX library, which includes sample programs for LVGL as well.   Porting lvgl in arduino is very convenient. Let's transplant one together and run the demo example of lvgl! Since the Arduino project file in arduino's library path is rea ...

Background knowledge: ESP32 There are two ways to use SD card. One is to use SPI interface to access SD card, and the other is to use SDMMC interface to access SD card. In Arduino core for the ESP32, SPI mode occupies 4 IO ports and SDMMC mode occupies 6 IO ports. Generally speaking, SDMMC mode is faster than SPI mode.   1. SDMMC mode Although ...

ssd1306OLED Chinese display - micropthon-esp32 - using GB2312 font library (non manual mold taking) preface: Ah, in order to make my * * "mobile phone abstinence device" (the functions of each subsystem of this project are about to be completed!)** I've really paid too much for this OLED with more than ten yuan. Baidu couldn't f ...

LVGL has a "file system" abstraction module that enables you to attach any type of file system. The file system is identified by a drive letter. For example, if the SD card is associated with the letter "S", you can access a file similar to "S:path/to/file.txt". The "file system" abstraction module is of ...