Uhf Motion Detector
Posted on Oct 12, 2012
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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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Five pins RA0 to RA4 are used as inputs. The pins are connected to the 5V average resistance 10K...
This can be used to control entry on a Cat or Dog Door" NOTE: There may be some changes and...
A Wien bridge oscillator produces sine waves with very low distortion level. The Wien bridge...
Make the following connections: GND (pin 8) to ground, Vcc (pin 16) to 5V OE (pin 13) to ground...
A Pulse generator usually allows control of the pulse repetition rate, pulse width, pulse delay...
The circuit below uses a CMOS dual D flip flop (CD4013) to toggle a relay or other load with a...
We mounted one of them on a wooden sigar box and connected the anode via a large series...
In this project we`re going to use use two wires, in this project, we use one red and the other...
Need USB solution for your project Use LPC2148 MCU. In old days it`s very handy using LPT or COM...
JYC-22F type cooker low voltage power supply circuit is shown. AC 220 V power supply voltage is...
As shown in FIG lighting controller with lights getting brighter gradually eliminate function,...
DK-5A, 5D, SDb control box, all with a thermal electromagnetic overcurrent release, the circuit...
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