Electronic Night Light
Posted on Nov 12, 2012
New Circuits
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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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This circuit makes a nice lamp that consumes little power, runs cool, and has an incredibly long...
The EDFET drives like a FET, but with the bias stability of bipolar. Amps of output current can...
Probably the easiest way of doing automatic switch off is with relay logic. In the diagram, the...
The decision to use either AM, narrowband FM Oess than 15kHz), or wideband FM (greater than 30...
This converter has a central component, the CMOS 4047, and converts a 12V DC voltage to 220V AC...
The count advances as the clock input becomes high (on the rising-edge). Each output Q0-Q9 goes...
On this diagram, you can easilily locate test points related to Applied Voltage and Potential...
Zener diode regulator is a basic electronic circuit which is very useful for those interested in...
Here is a simple and compact flasher circuit that an be used where ever a flashing LED is needed....
UART, GPs This application note shows how to combine a GPs module SC16C2552B into a navigation...
This lovely circuit is a real gem! Easy to assemble and more sensitive than many commercial...
The other thing I thought of is using a phase shift oscillator followed by an inverter to turn...
The timer IC(NE555) is wired as an ASTABLE MULTIVIBRATOR in this circuit. It will generate...
This web page presents details regarding the design of a strain gage based load cell that can be...
(1) infrared transmitter circuit of the infrared transmitter circuit shown in Figure 18-la. By...
Clip-on current probe, such as the Tektronix P6021 current waveform for oscilloscope display is...
FIG potentiometer RP2 sliding contact with the axle shaft is directly connected to the antenna....
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