We do know that times can get pretty hard for some of us out there, especially when you are out of a job for the longest time and your savings have just about run out. Well, that would mean being even...
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Tuesday, 31 December 2013
6-Channel Running Light
The circuit of the running light comprises two integrated circuits (ICs), a resistor, a capacitor and seven light-emitting diodes (LEDs), Decade scaler IC2 ensures that the LEDs light sequentially. The...
Sunday, 29 December 2013
Kisai Adjust LED Watch
If you have always wanted to have a cool looking timepiece that is extremely difficult to read, then you would not be able to go wrong with Tokyoflash’s collection of timepieces. Their latest addition...
Disposable Batteries Recharger
We do know that times can get pretty hard for some of us out there, especially when you are out of a job for the longest time and your savings have just about run out. Well, that would mean being even...
Thursday, 26 December 2013
Mushkin Atom 3.0 USB flash drive introduced
I am quite sure that by now, many of us have already amassed quite a collection of USB flash drives over the months and years that have gone by. Hardly any conference or road show is devoid of a USB...
Tuesday, 24 December 2013
BLU Life Pure Android Phone Announced
Following two budget-friendly smartphones, BLU announced its flag grade Android phone – Life Pure. If you need a high performance smartphone, let’s go on checking. BLU Life Pure is a 5-inch Android smartphone...
Monday, 23 December 2013
Solar Powered Animal Scarer
Here is a solar powered Flasher to scare away the nocturnal animals like bats and cats from the farm yard or premises of the house. The brilliant multicolored flashes confuse these animals and they avoid...
Saturday, 21 December 2013
New Trent PowerPak Ultra Backup Battery
New Trent recently released a new power bank – PowerPak Ultra. If you like rugged design or need a large-capacity option, the backup battery should be able to catch your eyes. The PowerPak Ultra is a...
Thursday, 19 December 2013
Smart AC Automotive Power Strip
Women might say that they will never be able to have enough handbags and shoes (generally speaking), while men might never get enough of their power tools and hardware toys, and kids with their video...
LG announces new All In One Chromebase Computer
LG’s current foray into the Android device market happens to be limited to just smartphones, phablets and tablets, but it seems that they are also taking off in a different tangent with Google’s Chrome...
Wednesday, 18 December 2013
Kingston HyperX Predator 1TB USB 3.0 Flash Drive
I am quite sure that many of us have attended our fair share of trade shows and conferences over the years that we have amassed quite a collection of USB flash drives in our homes, so much so that these...
Triple Power Supply
Inexpensive miniature transformers normally provide one or two secondary voltages, which is sufficient for generating a set of positive and negative supply voltages, such as are needed for operational...
Friday, 13 December 2013
Pushbutton Relay Selector
This circuit was designed for use in a hifi showroom, where a choice of speakers could be connected to a stereo amplifier for comparative purposes. It could be used for other similar applications where...
Simple Emergency Light
This is an automatic emergency lamp with day light sensing, means it senses darkness/night and turns ON automatically. Similarly it senses day light and turns OFF automatically. A simple emergency lamp...
Mains/Fuse Failure Indicator
The indicator shows when the mains is present at its output by a continuous glow of a neon bulb, La1, and when the fuse is blown by flashing of the neon bulb. When the fuse is intact, capacitor C2 acts...
Wednesday, 11 December 2013
Electronic Cricket Match Game
This electronic cricket is a present for Kids. This simple battery powered circuit can be used to play Cricket Match with your friends. Each LED in the circuit indicates various status of the cricket...
Monday, 9 December 2013
Automatic Headlight Reminder
Do you drive an older car without an automatic "lights-on" warning circuit? If so, you've probably accidentally left the lights on and flattened the battery on one or more occasions. This headlights...
id America LX Dual USB Car Charger with Leather Grip
id America recently released LX, its latest dual USB car charger with leather grip. If you’re looking for a decent USB charger for your car, the LX may be able to catch your eyes. The LX is a practical...
3V Supply Splitter
Many modern circuits tend to work from a single supply voltage of 3V. But often they need a virtual earth at half the supply voltage for efficient operation. The splitter shown in the diagram bisects...
LED Bar Off Indicator
The simple indicator presented in this article may be combined, in principle, with any circuit that contains an LED bar display driven by a Type LM3914 IC. It ensures that an LED will light when all...
Thursday, 5 December 2013
Flashing-LED Battery-Status Indicator Circuit
A Battery-status Indicator circuit can be useful, mainly to monitor portable Test-gear instruments and similar devices. LED D1 flashes to attire the user's attention, signaling that the circuit is running,...
Logic PSU With Over-Voltage Protection
A simple 5 Volt regulated PSU featuring overvoltage protection. The 5 volt regulated power supply for TTL and 74LS series integrated circuits, has to be very precise and tolerant of voltage transients....
Tuesday, 3 December 2013
Thrifty Voltage Regulator
One of the drawbacks of a three-pin voltage regulator is that the input voltage needs to be 2.5–3 V higher than the output voltage. This makes these integrated regulators unsuitable for battery power...
Saturday, 30 November 2013
3D Printed Abacus iPhone 5s Case
We aren’t sure whether you know how to use the ancient calculating device, but if you just need a unique way to protect your iPhone 5/5s, the 3D printed iPhone 5s case may be suitable for you. This is...
Thursday, 28 November 2013
Room Recorder
My wife was working on a doctoral dissertation and needed to do some field work involving personal interviews in various settings. What would be the best way, technically speaking, to record the interviews?...
Romo the Smartphone Robot
So you happen to be a smartphone user for the past few years already, and have more or less gotten bored of the device, so much so that you are thinking about the possibilities of a new kind of smartphone...
Tuesday, 26 November 2013
Power Diode For Solar Power Systems
Apart from the sun, solar power systems cannot work without a reflow protection diode between the solar panel and the energy store. When current flows into the store, there is a potential drop across...
Saturday, 23 November 2013
Toshiba Excite 7 Android Tablet Announced
Toshiba has announced Excite 7, its latest Android tablet. If you’re looking for a balance option between price and performance, the 7-inch tablet may be able to catch your eyes. Toshiba Excite 7 is...
Thursday, 21 November 2013
Flashback iPhone 5s Case
Hard-shell iPhone5 case in a throwback design that'll have you partying like it's the year 2000. Allows for full access to all ports and controls & easily snaps right on n' off.Content care ,Plastic,Wipe...
Cookie Shaped USB Mug Warmer
Want to comfortably enjoy your favorite coffee beside your computer? Take a look at the cookie shaped USB mug warmer, it may be able to catch your eyes. This is an interesting and practical USB mug warmer...
Wednesday, 20 November 2013
Timebrick Concrete Clock
It’s not a normal concrete block, but a unique clock that shows you accurate time. If you like this kind of solid design, let’s go on checking the Timebrick concrete clock. The Timebrick is a pretty...
Tuesday, 19 November 2013
Pan Pot
A pan pot enables a mono-phonic input signal to be positioned where desired between the stereo loudspeakers. When P1 (see diagram) is in the center position, there is no attenuation or amplification...
Monday, 18 November 2013
Sounds From The Old West
This circuit shows how far integration can be taken: IC1, a Type HT82207 from Holtek does virtually everything. Only a (small) loudspeaker and the necessary selectors need to be added. The standard 18-pin...
Modem Off Indicator
The modem off indicator is intended especially for serious Internet surfers. It will be seen that the circuit of the indicator cannot be much simpler, or there might be nothing left. In spite of its...
Oscillation Monitor
The circuit in the diagram was originally designed to monitor an oscillator, but can also be used as a general-purpose level indicator for a.c. signals. It is based on a quadruple IC containing four...
Opamp With Hysteresis
At first glance, the circuit in the diagram does not look out of the ordinary, and yet, it is. This is because it combines two characteristics that are usually assumed to be incompatible: hysteresis...
Sunday, 17 November 2013
Low-Power Voltage Reference
The present reference is a special application of current source IC Type LM334. It has a tiny temperature coefficient and draws only a minute current: at room temperature, only 10 µA, which increases...
Mini Audio Signal Generator
A small audio test generator is very useful for quickly tracing a signal through an audio unit. Its main purpose is speed rather than refinement. A single sine-wave signal of about 1 kHz is normally...
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