Proximity-sensor
Posted on Oct 30, 2012
New Circuits
-
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.....
.
This circuit makes a nice lamp that consumes little power, runs cool, and has an incredibly long...
The operating principle of the circuit is very simple. The first Led D1 is placed in series with...
This supply generates an initial high voltage for ignition purposes. After ignition, the supply...
The HA7210 oscillator 10 combines with an IOL7642 quad CMOS op amp to produce a sleep-mode...
The SSM22111 is a high performance audio amplifier that delivers 1 W rms of low distortion audio...
Converter 12 VDC to 220 VAC is a tool that can convert the DC voltage of 12 volts to 220 volts...
A "talking" computer is not necessarily expensive - not if you mate one of the low-cost computers...
Trigger programming with its build-in pushbutton. The solution I came up with was to add a tiny...
This inverter circuit can offer a really stable 230V Output Voltage. Frequency of operation is...
This article tries to get you some idea how to interface IR remote controllers to computer....
A very simple Field Strength Meter composed of a small antenna, a detector diode, a resistor,...
This circuit charges two NiCad cells with a constant current and features dual charging rates,...
I describe the procedure I followed to build the Box, the Lamp System and the Countdown System...
(1) infrared transmitter circuit of the infrared transmitter circuit shown in Figure 18-la. By...
As shown in FIG gear lathe unloaded from the stop line. When turning clutch in the stop...
Close the power switch os, press the start button SB2. KM1 contactor is energized combined...
characters left: