Tutorial: Arduino and Push-wheel switches - Birds on the Wire Welcome back fellow arduidans! In this article we go back to the past via the use of push-wheel/thumb-wheel switches with out Arduino systems. Here are some examples sourced from somewhere on eBay: For the uninitiated, each switch is one vertical segment and they can be connected together to form various sizes. You can use the buttons to select from digits zero through to nine. EEPROM Programmer EEPROM (E 2 PROM) is very easy to work with, since it just acts like a block of SRAM. No special voltages, no mystical voodoo or anything. I designed this EEPROM programmer after I came to the conclusion that I was too broke to buy a real one, and that even if I wasn't too broke, they're a complete rip off. Most of them run $200 for something that can only be maybe an order of magnitude more complex than my $5 programmer. In my design, two 74x164s provide the address lines to the EEPROM, while one 74x299 universal shift register provides both read and write access to the data lines of the EEPROM.
iBoot + MultiBeast: Install Mac OS X on any Intel-based PC Any OSx86 installation guide can seem daunting at first glance, especially when trying to remember cryptic terminal commands and sorting through volumes of misinformation on the web. This guide requires no coding, terminal work, or Mac experience of any kind. You will not need access to a Mac. In fact, it's easier and faster for me to install Snow Leopard with fully working components on my system than it is to install Windows 7. And more fun. The iBoot + MultiBeast method is designed and tested for any desktop or laptop running the latest line of Intel processors, the Core i3/i5/i7s.
AT command reference Recent Works The first company to successfully deploy High Available Satellite service for Smart Grid technology operating in fringe areas. Contact us for our white paper on using satellite technology in the Utility Industry. Broadcasting Award Winners Remote-controlled fiber-optic Ceiling Light with Arduino , who wants to partecipate to our iniziative “ ”, sent us his new application with Arduino to demonstrate his skills in this field: a . Mauro decribes himself: The idea was to built a ceiling lamp that lights with a little surprise: a starry sky in my living room, even in the dark nights. To achieve my goal I used a wood table with many holes with different diameters that house the optical fibers. The size of the ceiling lamp (90 cmx 60 cm) did not allow me to use a single bundle of fibers and this is the reason of the two beams I used, each of which comes with a LEDs illuminator as shown:
RGB mood lamp (3 sept. '06) Update: i made a new and better mood lamp. On this page i will explain how i created my own colour changing lamp with red, green and blue leds that fades between all colours of the rainbow. It really comes out well at night when other light are dimmed. In daylight conditions the colors aren't noticed well. Understanding RC LiPo Batteries It would seem by the number of e-mails I get on the topic of RC LiPo Batteries, it's time to build a page to help answer the most common questions. Charging Some Of My LiPo Packs I've been into LiPo electric powered RC flight for the better part of 9 years now, and have learned so much about this amazing powering method in that time frame.
Hardware:AT Commands The protocol used to access the GSM chip is part of the GSM standard. Harald wrote on 2007-01-31 on the list "The chipset supports all of the mandatory ETSI GSM TS 07.07 commands (use to get it), plus some of the optional ones. This GSM standard even has a command that lists the list of available commands (AT+CLAC)."