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

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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 →