Lights-on-reminder
Posted on May 23, 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.....
.
An AC triggered switch for low frequency signals. This is a basic ac voltage operated switch made...
This is a simple servo tester which will comprehensively test the capabilities of almost any...
This fucntion gernerator IC is specified to work to 20 MHz. So far, this unit works nicely to...
Most universal chargers to charge the battery 9 V (8.4 V more). However, while the charging of...
The sunset lamp comes on at full brightness and then slowly fades out over 1.5 hours time and...
A wideband high gain configuration using two SL550s connected in series. The first stage is...
This de adapter provides a regulated 9-V source for operating a Kenwood TR-2500 hand-held...
This circuit provides either latched switching or timed switching. U1A and UlB provide audio...
Control a furnace using a 3. 3V microcontroller. The furnace operates by connecting a common 21V...
This simple circuit allows a 12V battery pack to be charged via a bike generator. The generator...
The terminal of R7 bearing an arrow must be connected to the desired output pin of IC2 or IC3 in...
Here`s the circuit diagram based on PIR motion sensor module BS1600 (or BS1700) that can be used...
This circuit is designed as per a request made by Mr Vinoth from India. His requirement was a...
Circuit works: SC3525A for the US General Semiconductor PWM silicon chip, 1 foot of the error...
characters left: