Actual combat wsl2 0 arm cross tool chain - step pit cross compilation incompatibility

Actual combat wsl2 0 arm cross tool chain - step pit cross compilation incompatibility environment Cross compiler: arm linux gnueabihf-4.9.4-2017.01-linaro is installed in VMware UBUNTU 18.04 x64 and WSL 2.0 UBUNTU 20.04 x64 (non docker environment). The installation package gcc-linaro-4.9.4-2017.01-x86 is downloaded from the official website ...

Posted by chmpdog on Thu, 10 Feb 2022 11:08:30 +0100

The health management system based on Huawei cloud IoT is designed and the application side development is completed

1, Foreword In recent years, with the progress of science and technology and the arrival of intelligent wave, intelligent wearable devices are also developing rapidly. All kinds of health smart bracelets, smart watches, smart running shoes and smart glasses have been listed one after another, and there are many health management devices for in ...

Posted by LoneTraveler on Tue, 08 Feb 2022 19:01:38 +0100

Raspberry pie science experiment 4B--05_ horse race lamp

Small experiment catalogue Raspberry pie science experiment 001 turn on the first LED 002 light up the LED lamp group 003_ Switch control LED light 004_ Obtain temperature and humidity 005_ Running lamp (ws2812b)) preface For unknown reasons, in a burst of smoke, my raspberry pie 4B motherboard and interface board were reimbursed. ...

Posted by anothersystem on Wed, 02 Feb 2022 19:45:10 +0100

Python light application: how to quickly data on the cloud and control the device side?

1. Foreword Python is a very easy-to-use explanatory language. Its main features are as follows: Easy to learn and useScalable and portableRich third-party library It is precisely because of these characteristics that Python is widely used in some scenes with simple logic and complex functions. In recent years, with the rapid development of a ...

Posted by nonlinear on Wed, 02 Feb 2022 14:07:59 +0100

Python light application: connect Internet of things platform and control device hardware

  1. Foreword Python is a very easy-to-use explanatory language. Its main features are as follows: Easy to learn and useScalable and portableRich third-party library It is precisely because of these characteristics that Python is widely used in some scenes with simple logic and complex functions. In recent years, with the rapid development ...

Posted by rheroux on Tue, 01 Feb 2022 14:55:26 +0100

Deployment and Application of MQTT Server Mosquitto

Deployment and Application of MQTT Server Mosquitto MQTT Introduction Please Click Project Purpose The MQTT protocol is used for signal remote monitoring. Sensor->Signal Collection->lora Gateway->Server->Client application environment Operating System Windows 10 Hardware Configuration Lora Gateway ND65-L01CE-470M-EA IoT Switch ...

Posted by emopoops on Tue, 01 Feb 2022 11:38:55 +0100

An effective scheme for real-time audio and video transmission of Android devices

Author: York zhou preface According to the general demand development process, this article will explain * * * an effective scheme of "obtaining real-time audio stream while playing video on Android devices" from demand, analysis, development to summary. demand In car products, there is such a demand. For example, I connect my A ...

Posted by scrypte on Mon, 31 Jan 2022 14:35:09 +0100

EMQ X + IoTDB: store MQTT messages to the timing database

IoTDB It is the first open source time series database project initiated by Tsinghua University and is now the top project of Apache. IoTDB can provide users with services such as data collection, storage and analysis. Due to its lightweight architecture, high performance and high availability, and seamless integration with Hadoop and Spark eco ...

Posted by AlexMason on Sun, 30 Jan 2022 07:50:34 +0100

Raspberry pie science experiment 4B--04_ Temperature and humidity sensor

Small experiment catalogue Raspberry pie science experiment 001 turn on the first LED 002 light up the LED lamp group 003_ Switch control LED light 004_ Obtain temperature and humidity Tip: after writing the article, the directory can be generated automatically. For how to generate it, please refer to the help document on the right p ...

Posted by allenskd on Fri, 28 Jan 2022 23:12:05 +0100

Landscape lighting control system based on CC2530(ZigBee) + supporting mobile APP

1, Environment introduction Compiling integrated development environment: IAR MCU: CC2530(ZigBee) Programming language: C language Mobile APP: QT design is adopted, and the program supports cross platform compilation and operation (Android, IOS, Windows and Linux can be compiled and run, and the corresponding QT environment on the platform ...

Posted by bluetonic on Fri, 28 Jan 2022 22:03:50 +0100