by admin

$1.50 Arduino TV Annoyer!! (Turns TVs on when you want them off)

October 31, 2013 in AVR, DIY, Hardware, Microcontroller by admin

arduinoArticle featuring on

A qucik instructable on how to construct a Arduino based TV annoyer, which would turn on TV when you want to turn it on. To quote the original article:

Hey Arduino fans! Here is an ‘ible for making a device that turns TVs on when you want them off, and off then you want them on! If you hide it in something inconspicuous, it would make a great April Fools joke or gag gift.


Required components:

  • 1x Infrared Detector ($0.78)
  • 1x Wide angle Infrared LED ($0.23)
  • 1x Narrow angle Infrared LED ($0.23)
  • 1x 2N3904 PNP transistor (or equivalent) ($0.08)
  • 1x 10 Ohm resistor (Brown, Black, Black, Gold) ($0.05)
  • 1x 47 Ohm resistor (Yellow, Purple, Black, Gold) ($0.10)
  • 1x Arduino Uno (or equivalent) ($25.00)
  • Some wire (preferably solid-core, 22 gauge or so) (About $7-$8 at your local hardware/electronics store)

Required tools:

  • 1x USB A-B cable (for programming the Arduino) ($2.95)
  • 1x Soldering Iron (Optional) (About $15-$25 at your local hardware/electronics store)
  • 1x Spool of thin solder (About $10 at your local hardware/electronics store)
  • 1x Solderless breadboard (About $5-$6 at your local electronics store)
  • 1x Computer (I would hope you know where to get one of these)
  • 1x Arduino IDE (can be downloaded here)

For the original article and information about how to assemble it, follow this link.

by admin

Oculus Rift VR headset in development for Android devices

October 30, 2013 in Android, Hardware, News by admin

oculus-rift-5-650x0Via Digital Trends:

Oculus VR’s still-in-development Oculus Rift virtual reality headset isn’t ready for consumers yet, but that hasn’t stopped the rapidly growing company from admitting that it’s developing an Android-friendly little brother for the new tech. Confirmation came from Oculus VR CEO Brandon Iribe during his keynote talk at the GamesBeat 2013 video game conference (via VentureBeat).

The Android Rift will be a smaller, lighter take on the headset that we’ve seen so far, and it’ll be built to run off the connected mobile device’s processor. Iribe added that the plan is for both headsets to launch simultaneously (or close to that), though there’s still no clarity on when the consumer Oculus is coming. Many expect a 2014 delivery, but that’s in no way confirmed. The mobile Rift is going to Android only because iOS presents certain problems, though it’s not clear what.

For more information and the original article, follow this link.

by admin

Using cheap STM32 eval board with TFT LCD module from ebay

October 29, 2013 in Hardware, Microcontroller, STM32, Tips & Tricks, Tutorial by admin

stm32_board2There are a lot of sellers on ebay selling cheaply 320×240 LCDs with touch screen together with a microcontroller board. Usually the development board contains a  STM32F103 microcontroller (sometimes different) with or without some additional hardware. As an exemplification one of such sold configuration is:

  • 3.2″ TFT LCD Module, 320 * 240 pixels resolution, 26m colors.
  • Resistive touch screen, with XPT2046 Controller.
  • 4-6 leds
  • Twobuttons connected to GPIO lines
  • Serial communication interface
  • 2 mini-type USB socket, USB to RS232 and USB Device
  • 1 Micro SD card connector
  • A JTAG / SWD debug interface (20pin)
  • RTC battery
  • USB Power Supply

This web page not only has some information about how these boards could be used, but also provide some sample code using the LCD and a downloadable virtual image, containing:

  • Ubuntu desktop
  • ARM toolchain (gcc + newlib)
  • Eclipse C++ IDE
  • – for loading code into the board
  • openocd – for loading code and debugging
  • Example FreeRTOS project with all source code, include LCD+touch drivers and a simple menuing system to get you started quickly

Isn’t that awesome?

For the original article and the link for downloading the virtual image, follow this link.

by admin

Building GCC From Scratch for ARM development

October 29, 2013 in AVR, Hardware, Microcontroller, Tips & Tricks, Tutorial by admin

gnu-meditate A nice tutorial about how to build the gcc toolchain for bare-bone arm development.

For more information, follow this link.

by admin

Awesome DIY watch

October 28, 2013 in AVR, DIY, Hardware, Microcontroller by admin


What do you need for a nice DIY wrist watch? Apparently a small microcontroller, an RTC chip, OLED screen.

This awesome DIY wrist watch based on  Atmel ATmega328P  microcontroller and  DS3231M RTC and 1.3″ 128×64 monochrome OLED screen. For more information on this awesome project, follow this link.

Skip to toolbar