And here is the final part of the entry, starting with the schematic that I finally used. The core is the same as before. But now there is a linear voltage regulator for the controller. Also shown here is the serial interface and most importantly, the sensor circuit. The sensor circuit consists of two parts. First, the reference voltage on PB1 is
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generated with a variable voltage generator. The voltage can be varied between 2 and 3 volts. The second part is the signal input, also a voltage divider at 2. 5 volts and the transducer. I adjusted the reference voltage so that the LED just stops flashing without any input activity. Everything works. The main improvement would probably be on the sensor. It has to be very sensitive, and this leads to false triggers. E. g. switching the room light on or off trigger it. Perhaps an amplifier would help. As a work-around I set the dead time parameter to four seconds, so it would only trigger once per photo. I was able to take a few really interesting pictures. It is quite amazing how water behaves and the stroboscope makes it possible to explore that. I put a few pictures on flickr and there will be more. It is quite useful to look at some howtos on water drop photography. And of course you can experiment quite a lot.
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....
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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....
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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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