DC Motor Controller
Posted on Oct 31, 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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Colour sensor is an interesting project for hobbyists. The cir- cuit can sense eight colours,...
Any good power transistor can be used in this circuit. The base resistor should be adjusted to...
The monostable period is set for about 1 second, as is the usual case. The induced line hum comes...
For use with low-power transmitters with a positive keying voltage. Q1/Q2/Q3 form a switching...
This circuit is intended for use in a small private telephone installation. The ringing tone...
It can be adjusted to give the desired speed for the display. The output of the 555 is directly...
The power supply is pretty mundane. The 110VAC comes in on connector N17 and is hooked in series...
Here is a simple dancing light circuit based on NE555 (IC1) & CD4017 (IC2). The IC1 is wired as...
The compact, low-cost condenser mic audio amplifier described here provides good-quality audio of...
Xbox controller, a rapid fire mod. All it has to do is send a ground signal to one spot really...
The 7th overtone of 18mhz (17m) is 144mhz (2m) smack dab in the CW region. Icarus a HAB project...
AM radio shows monolithic circuit. The broadcast signal received by the antenna foot iciCD fed by...
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John Feb 18, 2008