This glowing Halloween ghost is available as a kit from the tuxgraphics online shop. It can glow friendly or it can produces scary flashes. You can choose your own face and make a friendly ghost or a scary moster. We wrap a very bright white LED in bubble padding foil. This foil will diffuse the light. Using transparent adhesive tape the bubble fo
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il is wrapped up and forms a little ball. A litte bit smaller than a tennis ball. This little ball is the head of the ghost. The basic "glowing ghost kit" contains the basic parts to build the ghost. The included white LED produces a very bright white light. In addition to this kit we need the atmega8 microcontroller and some batteries or a little DC power supply, 4. 5V to 5. 5V (Ericsson mobile phone chargers provide 5V DC). The atmega8 for the "glowing ghost kit" comes pre-loaded with software. You can however also take a plain atmega8 microcontroller and load it yourself with software. The software is available in the download section at the end of this article. For loading the software you will need a programmer like the avrusb500 from tuxgraphics. If you have the programmer hardware and you load the software yourself then you can also modify the software and invent your own blinking patterns. The software uses PWM (puls width modulation) to control the intensity of the light. The LED can be dimmed to any level and it can flash at any brightness level. It is just a matter of changing the software. Wrap the LED in bubble foil. Try to fold the foil such that there is a lot of foil in front of the lens of the LED and not so much foil behind the LED. Remember the light needs to be defused by the foil for this to be effective the light has to go through several layers of bubbles and plastic foil. The kit includes a black...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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