esp32 cluster

Tags: elf bash NTS Engineering Instance module file hub IDFThe hardware is a ESP32 integrated module with WiFi and Bluetooth. 1. First ctrl+alt+t Open the terminal,sudo-s choose to log on with root permission . 2. input instructions:sudo apt-get install git make gcc Libncurses5-dev flex Bison gperf python-serial 3. Download file:Xtensa-esp32-elf-linux64-1.22.0-73-ge28a011-5.2.0.tar,Physical Machine Direct l

First of all to ensure that the computer has downloaded the Git client, no self- https://git-scm.com/downloadSTEP1: Get the Build ToolchainWindows does not have a built-in "make" environment, so you will need a GNU-compatible environment to install the toolchain. We use the MSYS2 Environment to provide this. You don't have to use this environment all the time, you can program with front-end software such as Eclipse or Arduio, but the toolchain is actually running in the background. The quick

This post is suitable for entry-level personnel, but at the same time welcome new and old readers to criticize.A treasure bought a esp32, there is a ESP32 development guide book.And then the environment is built. The above is written mainly on Linux, I built a half-day on my orange Pi PC Development Board, there are some areas behind the problem, not ready. After the time to deal with the process, after all

Esp32's system initialization and startup process and design learning methods For esp32, only one app_main function exists in the development program. This function is the entrance of the user program. This is equivalent to the main function in the system where FreeRTOS is not called, but before app_main, the system has another initialization process, which can be roughly divided into the following three pr

This project has been managed to GitHub, the specific path is Https://github.com/tidyjiang8/esp32-projects/tree/master/sta In the previous blog "Let ESP32 connect to your WiFi hotspot", we have simply analyzed the WiFi workflow and briefly prompted the event scheduler/wifi state machine, which we will analyze in detail in this blog post. In ESP-IDF, the entire WiFi stack is a state machine that has a stat

Recently when using ESP32 to drive an SPI device, the SPI device did not answer, strange when I used stm32 successfully driven the SPI device, how to transplant to ESP32 is not possible. When using Stm32 I use SPI mode3, i.e. cpol=1, Cpha=1, refer to the generic SPI mode definition: SPI four mode SPI phase (CPHA) and polarity (Cpol) can be 0 or 1 respectively, the corresponding 4 combinations constitute the

This project has been managed to GitHub, the specific path is Https://github.com/tidyjiang8/esp32-projects/tree/master/sta Git plus--recursive Function Description: Connect ESP32 as an STA to a WiFi hotspot. "Quick Start" "Suppose" you have installed the ESP-IDF and toolchain. You already have a WiFi hotspot. "Step" uses the data cable to connect the board to your system, allowing the system to recognize y

Play ESP32 (2): WiFi Code Implementation ESP32 as a wifi+ Bluetooth chip, the realization of WiFi is its most basic function, and in ESP32, the use of WiFi can be achieved STA, AP, Sta+ap three ways. STA Code Implementation First look at one of the simplest examples of implementing WiFi sta. #include "freertos/freertos.h" #include "freertos/task.h" #include "fre

In the previous article, I have already talked about downloading ESP-IDF using Linux's own tools, but in order to develop the system, we use eclipse to compile the IDF as a whole.First of allCd/esp32Run Eclipse and select workspace under/home/li/esp32/workspace/hello_worldUsing directivescd/esp32/esp-idf/examples/get-started/hello_world/ and Instructions Cp-r Hello_world/home/li/

corresponding file. The conditions for flushing the buffer zone are as follows: 1) buffer Filling 2) The written characters include '\ n' 3) Call fflush to manually refresh the buffer 4) When scanf is called to read data from the buffer, it also refreshes the data in the buffer. Someone asked why I can print the program smoothly without adding '\ n', because your printf is not in a loop and won't involve any problems, because even after printf is executed, the content is only sent to the buffer

Redis Shards:Why shards: As Redis stores more and more data, the performance of Redis is getting worse!Current methods of sharding:1. Client ShardAt the application level of sharding, the program specifies what data is stored in the Redis advantage: more flexible disadvantage: Add a node expansion is very laborious 2, Agent Proxy shard Third party twemproxy use agent shortcomings, you agent what performance, then your whole redis performance is what kind of! 3. Redis cluster4, Codis (pea pod) Op

Microsoft Cluster Server Architecture Consisting of three key parts: Cluster Service Resource Monitoring Resource and cluster management extension DLL Cluster Service The cluster service (composed of event processor, failover Manager/Resource Manager, Global Update

Simple use of Mysql-Cluster-7.5 to build a database cluster, cluster to build Reading directory Preface Several Concepts in mysql cluster Architecture diagram and description Download mysql cluster Before installing mysql cluster