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The duckduckgo.com's search engine is very neat to use.Acutally it has many things to do with other things since its API is also very neat.We can find many API which are free to use on different platforms. Here we got one for JavaScript on github. "https://github.com/devnulled/duckduckgo-ap 阅读全文
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---恢复内容开始---The GPRS shield which I tested is one which looks like this:---恢复内容结束---Need to be re-edited soon. 阅读全文
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Testing a sensor from here.http://www.seeedstudio.com/wiki/Grove_-_Dust_SensorIt's a dust sensor. Everyone can buy it anywhere also. It's a cheep one actually.We can find its document here:http://www.seeedstudio.com/wiki/images/4/4c/Grove_-_Dust_sensor.pdfIt looks good.It's more cheaper 阅读全文
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It looks like this one:This one isn't a digital light sensor, so it's very simple.http://www.seeedstudio.com/wiki/Grove_-_Light_SensorWith seeeduino and it's grove shield, this would be very easy to use.Now we can do a little experiment:using a LED and a light sensor.condition 1) If the 阅读全文
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As we all know OpenERP is a great open-source ERP/CRM project.It does help people a lot when working in such a modern society.For those people who like to use free opensource software OpenERP is a good option.linuxmint 15 is a destro which is based on ubuntu 13.04 and has more futures. linuxmint 16 阅读全文
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vibrator is a good thing. it has multi-funtionality . :)Now the vibrator we choose is the one which looks like this:http://www.seeedstudio.com/wiki/Grove_-_VibratorI am testing this vibrator which is neat.const int vibratorPin = 8;void setup(){ pinMode(vibratorPin, OUTPUT);}void loop(){ // make it.. 阅读全文
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根据arduino官方网站出的shield，类似的情况有很多中motor shield这里测试采用的是http://www.seeedstudio.com/wiki/Motor_Shield_V1.0这款。采用的驱动芯片是L298N，官方网站arduino.cc 采用的是L293N，现在最新的已经采用了L298P了。http://www.arduino.cc/en/Main/ArduinoMotorShieldR3其他类似的shield 如下：http://www.dfrobot.com/wiki/index.php?title=Arduino_Motor_Shield_(L293)_(SKU 阅读全文
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Arduino的另外几种模块，我们常见的joystick摇杆模块。用起来很爽，摇杆有X，Y轴可调这里有一篇非常想尽的示例代码：http://www.geek-workshop.com/forum.php?mod=viewthread&tid=96什么也不操作的话，显示的数字是512const int xside = A0;const int yside = A1;int valuex = 0;int valuey = 0;void setup(){ // set the serial port Serial.begin(9600); }void loop(){ valuex = ana 阅读全文
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arduino IDE装上的时候，要记得在windows平台安装驱动。如果不安装驱动的话，烧写程序的时候也许会遇到下面的现象。原因有如下几种：1，arduino控制板或者COM口没有选对，这种问题最简单2，下载的时候，arduino控制板上接了其他扩展板（使用D0，D1口的基本都会出问题，这两个口是用来通信下载程序的。）如果接了其他扩展板不能用，可以先拔掉扩展板再次尝试重新下载程序。3，bootloader损坏，这种情况下需要重新刷bootloader。4，驱动未安装好。（目前遇到ghost版本，或者精简版win7系统安装uno驱动时，无法安装的问题。这种情况，需要重装系统。ghost版或者精 阅读全文
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It's so painful to install nVidia driver by hand on linux.If you remove it or you want to upgrade by all your hand, you ought to need be very patient about this stuff coz it will kill you a lot of time.first you need to download the latest driver from their site.it looks like "NVIDIA-{versi 阅读全文