Riitek R900 is a professional air mouse presenter with an integrated laser pointer. It works with two AAA size alkaline batteries (included in the package) and can be used with your Android TV box, your notebook, tablet PC and every system capable to works with Windows, Mac or Linux. All the most important control keys are in the front upper side: the laser push button, the volume control, the left and right click buttons of the mouse, the enter command, the UP/DOWN/LEFT/RIGHT position controls. Looking to the air mouse from the back, there is the ON/OFF switch on the right hand side; on the left hand side there is a wheel, useful to scroll pages, which also include a enter key function when pressed. Continue reading
A comparison of some of the most popular development board available to the hobbyists.
Raspberry Pi is one of the most known board in the hobbyist world and it is easy to guess why: its success is mainly lead by its low and accessible price for a product with very interesting features. Since Raspberry Pi has been introduced on the market, a borderline has been defined and everyone who wants to design and develop a new board which will be appreciated and loved by the worldwide hobbyistic community, must compare its product with the Raspberry, mainly in terms of final price. Continue reading
Maybe you have already experienced the “red LED only” issue with your Raspberry Pi. If you are sure that everything is ok (power supply, SD card, OS files) maybe you have a SD card slot issue: the plastic sides of the original holder could be damaged and the memory card doesn’t have a good contact and your board can’t boot. In such case the best thing to do is to replace the SD slot. Find out an exact part replacement it was really hard however why use again a thin, plastic holder when a better metallic part could permanently fix the SD contact issue? Finally we decided to use this part, made by Wurth Elektronik and available from Farnell: http://uk.farnell.com/wurth-elektronik/693063020911/memory-socket-sd-card-9way/dp/2081361?Ntt=693063020911
We have already seen two amazing mini keyboards which are the best companion for your embedded system like Raspberry Pi and other boards as well as media systems and desktop pc. Today we want to show you another two keyboards made by Riitek: the Rii mini i10 and Rii mini i13. Continue reading
Rasperri Pi was mainly designed to be used by young people who want to learn and discover the electronics and programming world without investing big amount of money. The latest improved version which has a 512 MB RAM available can be used to perform more complicated tasks as the one we want to show you today: how to make your home opensource video surveillance system using Raspberry PI, Zoneminder and a IP cam. In this system the Rasperry Pi works as a DVR (Digital Video Recorder); the acquired video files will be stored into the SD memory card and can be reached from everywhere by using a FTP server like Vsftpd. Continue reading