Carrier-Current Baby-Alert Transmitter Circuit
Posted on Sep 22, 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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This is basically a flasher circuit modified to turn on and off a bulb instead of a LED. It uses...
This circuit is often used by amateur radio operations, shortwave listeners, and other operators...
This circuit is fed from the earphone jack of your receiver and goes to limiter control R6 and is...
This simple receiver AF amplifier can supply several hundred milliwatts to an 8- speaker. The...
The following diagram is the schematic diagram of Ni-CAD Battery Charger circuit which featured...
A PIR sensor is triggered by itself when using a timer to wait 2 seconds after the sensor is...
Using ceramic tuning 3. 587 mhz resonator and resonator filters are also sold with a value of 5....
The latest circuit diagram of the AD2496 is shown here. All modifacations I intended and...
An EEPROM is kinds of novalatile memory, that means it is used for storing digital data...
TDA 2030 is produced by SGS Ates and is a complete audio amplifier. Class AB amplifier to deliver...
The connection point for the positive terminal of the 9V battery is displayed as a circle at the...
A solar powered Flasher to scare away the nocturnal animals like bats and cats from the farm yard...
This circuit is similar to the one above but uses positive feedback to get a little more...
This simple but effective circuit can be used to control water level in a container. The...
The purpose of this page and its sub pages about members of Z80 family (and close relatives) is...
Circuit shown in Figure 3-178. It withered speed torque motor for continuous casting machine,...
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