Hobby Robotics 2
Posted on Feb 5, 2014
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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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An NEC602 is used as a mixer with a zero IF frequency output, U2 acts as an audio amplifier....
The circuits and wiring diagrams below have been tested on several hi-fi stereo systems with no...
The schematic shown below is a circuit of light activated LED using SCR. SCR (Silicon Controlled...
A simple low cost Infrared LED speedometer is described that can be fitted to a skateboard,...
This circuit might also be of interest to people making pre-amps for electret and externally...
This is a project I did during my B. E course. I always wanted to control my lights and other...
This circuit have an advantage over ordinary CONTINUITY testing Device, usually we are using...
This high voltage generator can generate stable high voltage above 8kV. Its circuit is simple. It...
This very simple circuit is an electronic thermometer using an inexpensive silicon transistor...
As shown in FIG alarm by a buck rectifier and voltage regulator circuit, gas sensor, comparator...
Circuit works The liquid level automatic controller circuit from the power circuit, control...
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