My Circuit

Now Oyster Releases the First True Netflix-for-E-books App . Netflix and Spotify have built multi-billion dollar enterprises by offering subscription services for film and music, respectively, but no company has actually made this form work for digital publications. Now, Oyster has disclosed its first try to change that. Oyster, a New York-based startup, made headlines late last year when it broadcast lifting $3 million from Founders finance to construct out a service that would offer "unlimited access" to e-books. On Thursday, the startup commenced its e-reading app for iPhone, which is accessible on a first-come, first-served invitation-only cornerstone for now. With the iPhone app, users get access to more than 100,000 ebooks from hundreds of publishers including Houghton Mifflin Harcourt, Melville House and one of the "big five" announcing houses, HarperCollins. Oyster will ascribe users $9.95 a month to read as numerous e-books as they like. "People love a...

A very simple real time clock electronic project can be designed using the PIC16CXXX microcontroller family , designed by Microchip Technology . This real time clock electronic project uses the Timer1 module, from a mid-range PIC16CXXX microcontroller, to control a low-power real-time clock. Timer1 was chosen because it has its own crystal which allows the module to operate during sleep. Upon power-up, the device is initialized with the display starting at 12:00 PM, and Timer1 is configured to generate an interrupt (every second). The Timer1 overflow interrupt wakes the device from sleep. This causes the time registers (HRS, MIN, SECS) to be updated. If the SECS register contains an even value (SECS<0> = 0), the colon (":") is not displayed. This gives a visual indication for each second. Then the device returns to sleep. Real Time Clock Circuit Diagram For setting the clock are used three keys : SELECT_UNITS Key (S1) selects which units are to be modified (hours, minut...

Tv tuner serves as the catcher signals from the antenna. Damage tuner, among others: 1. Image does not exist and there is no sound, raster speckled thick. 2. No picture no sound, or otherwise. 3. Channel switching the channel itself. 4. Image blocking white or blue. How to check the tuner and the IF is to remove the tuner from the PCB and connected by cable to the IF path, BM and Ground, then prepared using the pin on the tuner. Then the television was turned on, the antenna is connected to the antenna socket, and RV or potensio rotated slowly to choose the television channel when the tuner is in normal condition, the signal from the antenna to be acceptable, the picture and sound, and the channels do not move themselves. To damage its own channel switch and checked the normal manner stated above, the location of damage on the section of the program.

Samsung is launching the Omnia M, a new Windows Phone 7-based device, in Europe. The Windows Phone 7.5-equipped handset ships with a 4-inch Super AMOLED display and 1GHz processor. The device features a minimalist design with rounded edges and a curved back. According to Samsung, the case was designed ergonomically so it "sits comfortably in your hand." The real focus of the Omnia M is its social features, which include access to the company's Family Story, a cloud-based network for family members to share messages, videos, and photos. Samsung has also bundled its ChatON service with the device, allowing users to engage in group chatting and messaging across several platforms, including iOS and Android. It's been a busy week for Samsung's Windows Phone business. Earlier this week, the company unveiled the Samsung Focus 2, a $50 Windows Phone boasting a 4-inch Super AMOLED display and 4G LTE support. That device is going on sale May 20 on AT&T's network. ...

Street lights can be made to turn ON automatically when night time comes. Similarity they will turn OFF automatically when day comes. This system can be done by electrical control which utilizes a photo electric control device illustrated in figure below (A). Figure below (B-B1) shows how simple schematic diagram of the photo electric control. (A) Actual photo electric device. Control operation (B) Simple schematic diagram of a  photo electric device. At night time when sunlight does not strikes the photo electric control device, the resistance of the photo resistor PR inside the photo electric device is high, see figure above (B). The current I that will pass through the thermal device T will be low. This low current I will not sufficiently heat and make the thermal device T to expand. At this condition, the normally closed contact B which is coupled to the thermal device T will remain close to energize contactor C. with contactor C energized, contacts C (1-2,3-4,5-6) will remain clos...

what's the LED Strip Lights LED Strip Light is known by a number of phrases, including LED Tape, LED Strip and LED Ribbon. They generally all refer to the same product, which, to keep things simple, is a low voltage LED strip available in either 12v or 24v. They are basically 8mm or 10mm wide runs of evenly spaced LED chips which when mounted out of the direct line of sight, provide a smooth and uniform glow of light, ideal for illuminating under cabinets, bars, coving, etc Flexible LED Strips Flexible LED strips (sometimes called LED tape) have exploded in popularity in recent years. You can create unique atmospheres and visual effects that were not previously possible with the added benefit of low power consumption and excellent reliability. We have a wide range of IP33 rated strips which are water resistant tapes and ideal for kitchens, restaurant lighting, etc. Our IP65 waterproof rated LED strip lights are designed for use in potentially damp areas making them safe for use in ...

The LM3909 is an integrated circuit (IC) which will flash a light-emitting diode (LED). Using only two extra components and a battery, the circuit is cheap and has a very low current drain from a 1.5 V cell. The circuit can be used as a novelty flasher, an indicator for a dummy alarm bell box, or it could be attached to a torch so that it could be found easily in the dark! The simple circuit Assembly The circuit can be built on a small piece of Veroboard (the piece shown in Figure 2 measures 15 holes by 10 strips). Using such a board, follow these instructions. 1. Depending on how far away you want the LED from the circuit board, solder a length of insulated wire to each lead of the LED. Use different colours of insulation – say, red and black, connecting the red lead to the anode (a) lead (the longer one) of the LED, and the black one to the cathode (k). Figure 2 shows these leads. 2. Cut the copper tracks as shown in Figure 2, using a 3 mm (1⁄8 inch) diameter drill, rotated between t...