[TC] Remote controlled Spy Bot

Here is a remote operated spy robot circuit which can be controlled by using a wireless remote controller. It can capture audio and video information’s from the surroundings and can be sent to a remote station through RF signals. The maximum range is 125 meters. It overcomes the limited range of infrared remote controllers. This robot consists of mainly two sections. They are explained in...

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[TC] ExpeditInvaders Shelf -Arduino Based LED Lighting Shelf

Currently ExpeditInvaders support 10 color sets (RGB, Rasta, CGA, Brazil, Fizz, Kitty, Neon, Lantern, Lemming, LeBron) and 6 animation modes (Random, Solid, Ordered, Checkboard, Weird, Weirdtwo). The best thing about ExpeditInvaders is, that you can use your feets to change the color set or animation mode. Under the shelf is a PS2 keyboard attached. The keyboard has a special key...

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[TC] Haunted House Sound Effects Machine(Rasberry Pie)

People have been asking me about interesting applications for the Raspberry Pi, and whether Raspberry Pi is an Arduino killer of some sort. The answer to the second question is no; in fact it is an Arduino augmenter. This blog post answers the first question with another question: how about a Haunted House sound effects machine? A new revision of the Early Release of Getting Started with...

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[TC] Connect Raspberry Pi to Projector or TV

When we have a meeting in a meeting room, we need to connect our laptop to a projector to show our desktop. But sometimes, several persons need to show their desktop, they need to change their laptop. This is complex and waste some time. Currently, we have some mobile project, they are can be run in android/ios system. Before publish the project, we need to demo it to our team members or...

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[TC] Google Glass in Helmet Form

A Motorcyclist's Dream: Google Glass in Helmet Form Using high-tech dashboards, drivers can reference navigation systems and voice control in the comfort of a quiet car, but motorcyclists still don't have an effective, high-tech solution. Referencing maps requires a roadside stop, and GPS systems can be distracting. Now, the team at LiveMap is looking to fund a project that...

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Raspberry Pie History

Hello TC fans From Today onward We Are Going To Explain to About The Latest Module Discovered In Electronics History Called As " RASPBERRY Pie" And The Projects Based On It... DeveloperRaspberry Pi Foundation TypeSingle-board computer Release date29 February 2012 Introductory priceUS$ 25 (model A) and US$ 35 (model B) Operating systemLinux (Raspbian, Debian GNU/Linux, Fedora,...

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[Tc] Google To Use 'Wireless Balloons' To Deliver Wi-Fi

Google will reportedly use Air balloons and satellites to provide Internet access to under-served countries.  It is interesting that Google is planning to build wireless networks around the world in emerging markets such as Africa and Asia, but what’s more interesting is how the web giant plans to deploy this plan. The company is actually planning to offer Wi-Fi in these areas by using balloons....

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[TC] Secure Digital Access System using iButton

Access control forms a vital link in a security chain. Here we describe a secure digital access system using iButton that allows only authorised persons to access a restricted area. The iButton is used here as a key to the access control system. Its unique identification (ID) number is used for authorisation. On detection of an authorised iButton, the system allows access. Thereafter, an automated...

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[TC] Multiutility flash light

Multiutility flash light   This multiutility flash light consists of three sections: a flasher, a sound-to-light display and a white LED-based flashlight.The flasher circuit (Fig. 1) is built around an NE555 timer IC that is wired as an astable multivibrator. It flashes a pair of LEDs alternatively. The frequency of the astable multivibrator can be varied...

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