报警器

报警器
September 10, 2017
Arduino IOT Kit

1 Overview 在本课中将用PIR Sensor和蜂鸣器制作一个报警器,当PIR检测到有人移动时候,蜂鸣器报警并向指定邮箱发送报警信息。 2 Hardware Preparation UNO R3 Board x1 Ethernet Shield W5100 x1 USB cable x1 HC-SR501 PIR …Read the Rest

Osoyoo Basic Kit for Arduino

Osoyoo Basic Kit for Arduino
September 5, 2017
Tutorial & Examples

Introduction The Osoyoo Basic Kit is designed to facilitate beginners and developers to quickly learn Arduino and electronic technology. It …Read the Rest

Motor HAT for Raspberry Pi

Motor HAT for Raspberry Pi
September 4, 2017
Tutorial & eBook

Overview Let your robotic dreams come true with the new DC+Stepper Motor HAT. This Raspberry Pi add-on is perfect for …Read the Rest

PCF8563时钟模块

PCF8563时钟模块
August 31, 2017
测试

概述 PCF8563模块具有实时时钟和日历功能,接入备用电池,掉电后可继续工作。模块基于I2C接口,能方便地与MCU连接。相较于DS1302时钟芯片,PCF8563可编程,具有中断输出功能。 特点 Provides year, month, day, weekday, hours, minutes and seconds based on 32.768 kHz quartz crystal Clock operating …Read the Rest

Osoyoo Uno vs Osoyoo Mega 2560

Osoyoo Uno vs Osoyoo Mega 2560
August 31, 2017
Tutorial & Examples

Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It’s intended for artists, designers, hobbyists, …Read the Rest

坦克智能小车第七课:编码器

坦克智能小车第七课:编码器
August 30, 2017
测试

概述 这是坦克智能小车的最后一课,在前面已经提到过,由于电机之间存在一定误差,即使给两个电机相同的电压,其转速一般是不一样的,这样坦克小车就无法行走直线。要想电机走直线就需要用编码器调节两个电机速度,使其速度一样。 编码器原理 编码器分为光电式编码器和霍尔编码器,我们使用的是霍尔式编码器。霍尔编码器是一种通过磁电转换将输出轴上机械几何位移转换成脉冲或数字量的传感器。霍尔编码器由霍尔码盘和霍尔元件组成。霍尔码盘是在一定直径的直板上等分地布置有不同的磁极,霍尔码盘与电机同轴,电机旋转时,霍尔元件检测输出若干脉冲信号,为判定转向,一般输出两组存在一定相位差的脉冲信号。 编码器接线说明 电机一共有6pin,其中VM和GM是控制电机的,接到L298N上,这在之前已经讲过,剩下的4pin分别是 V:霍尔编码器电源,一般接5V G:霍尔编码器地,接GND S1:编码器的A相输出 S2:编码器B相输出 左右两个电机与arduino连接关系如下表所示:(翻译的时候把表变成连线图) 左边电机 编码器 esp8266 uart wifi shield V 5V G …Read the Rest

Osoyoo Mega2560 Board — Fully compatible with Arduino Mega2560 Rev.3

Osoyoo Mega2560 Board — Fully compatible with Arduino Mega2560 Rev.3
August 30, 2017
Tutorial & Examples

“The MEGA 2560 is designed for more complex projects. With 54 digital I/O pins, 16 analog inputs and a larger …Read the Rest

坦克智能小车第六课:蓝牙/wifi控制

坦克智能小车第六课:蓝牙/wifi控制
August 29, 2017
测试

概述 在前面几课中我们把esp8266 uart wifi shield仅仅作为arduino uno的扩展板使用,并没有用到它的串口转wifi功能,控制都只是红外控制小车运动,在本课中,将介绍如何使用esp8266 uart wifi shield的串口转wifi功能,手机连接esp8266 uart wifi shield的wifi热点,用APP控制小车运动。此外,esp8266 uart wifi shield具备蓝牙接口,将蓝牙模块插到对应接口上,连接蓝牙,同样可以用手机app控制小车运动。 原理 esp8266 uart wifi shield在工作的时候会发射一个wifi热点,wifi名称默认叫”DoitWIFI_Config”,打开手机wifi,无需密码就能连接这个热点,将esp8266 …Read the Rest

USE NodeMCU to make an IoT Garden/Lawn watering system.

USE NodeMCU to  make an IoT Garden/Lawn watering system.
August 29, 2017
Arduino/NodeMCU Garden Watering Kit

Introduction Preparation Connection Upload Sketch MQTT Client Settings Running Result Introduction In this lesson, we will use NodeMCU to make IoT …Read the Rest

Arduino lesson – 555 Timer IC

Arduino lesson – 555 Timer IC
August 29, 2017
Arduino Advanced Kit

Content Introduction Preparations Hardware Software About the 555 Timer IC What is 555 Timer IC ? Pinout Operating Modes Test …Read the Rest

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