Pi3基础学习套件 lession 2:python点亮LED

June 23, 2017
测试

The lastest Raspbian Jessie with PIXEL is with python and integrated development environment of python. Please go to start->Programming->Python3(IDLE). If you use HDMI monitor as the console, you can program in Python 3(IDLE) directly. For more information, please visit the lesson. If you program remotely, please reference the following.

Arduino lesson – Hello World

Arduino lesson – Hello World
June 23, 2017
Tutorial & Examples

Introduction A “Hello, World!” program is traditionally used to introduce novice programmers to a programming language. “Hello, world!” is also …Read the Rest

安装WiringPi

安装WiringPi
June 22, 2017
测试

USB Cable A to B

USB Cable A to B
June 22, 2017
Wires &connectors

Description: This is a standard issue A-B USB cable ,for USB 1.1 or 2.0. This is the most common A to …Read the Rest

Raspberry Pi Basic tutorial——Get Started

Raspberry Pi Basic tutorial——Get Started
June 20, 2017
测试

Hardware Preparation 1x Raspberry Pi 3 1x MicroSD/TF card(no less than 8GB) 1x 5V 2.5A DC power adapter with a …Read the Rest

{:en}SW520D tilt Switch with Raspberry Pi 3

{:en}SW520D tilt Switch with Raspberry Pi 3
June 19, 2017
测试

{:en} {:en}Introduction Today, IOT  technology devolop more and more popular. IOT technology led to the vigorous development of related industries, …Read the Rest

One-digit 7 segment LED display

One-digit 7 segment LED display
June 19, 2017
LCDs & Displays

Description This is the basic 7-segment LED display,  in red! Common anode. One decimal points. Features 4 digit red alpha-numeric display …Read the Rest

智能花园浇水系统

智能花园浇水系统
June 15, 2017
测试

概述 很多人喜欢养花 ,但是总是养不好,经常能听到这样的对白:哎···最近又把花养死了,真是罪过,罪过······。每当听到这样的话你有没有想过 问题出在哪里呢?究其原因无非就是无法确切知道土壤湿度,给花草浇适量的水,要么浇太多了,要么浇太少了导致花草死掉。本文将介绍如何DIY一套智能花园浇水系统,能实时检测土壤湿度,自动给花草浇水,帮助你养出更多别致的花草。 工作原理 给系统上电后,首先会进行系统初始化,初始化完成Arduino会实时读取按键标志位。如果按键标志位是0,读取当前土壤湿度值,当土壤湿度低于土壤湿度临界值,打开电池阀开始浇水,直到土壤湿度高于土壤湿度临界值再关闭电磁阀停止浇水;如果按键标志位是1,进入修改土壤临界值提示页面;如果按键标志位是2,读取编码器脉冲数;如果按键标志位是3,确认修改土壤临界值。 硬件 智能花园浇水系统主要包括五大部分,分别是控制部分、检测部分、显示部分、调节部分、浇水部分。下面将对每一部分详细介绍。 1 控制部分 智能花园浇水系统我们用Arduino UNO为控制核心,在整个系统中扮演着最重要的角色,它就像一个人的大脑,起着支配身体其他部分的作用。 2 检测部分 我们用YL-69土壤湿度传感器作为检测部分,用于检测土壤湿度,该模块规格如下 输入电压 3.3V-5V 输出电压 0-4.2V 输入电流 …Read the Rest

MQ2 Smoke Detector

MQ2 Smoke Detector
May 27, 2017
Sensors & Accessories

MQ2 flammable gas and smoke sensor detects the concentrations of combustible gas in the air and ouputs its reading as …Read the Rest

HC-SR04 Ultrasonic sensor module

HC-SR04 Ultrasonic sensor module
May 27, 2017
Sensors & Accessories

Ultrasonic HC-SR04 Distance Measuring Transducer Sensor HC-SR04 consists of ultrasonic transmitter, receiver, and control circuit. When trigged it sends out …Read the Rest

2 Channel DC 5V Relay Module

2 Channel DC 5V Relay Module
May 27, 2017
Sensors & Accessories

Description: This is a LOW Level 5V 2-channel relay interface board, and each channel needs a 15-20mA driver current. It …Read the Rest

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