Remote Thermometer circuit
Posted on Nov 23, 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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An exclusive-OR gate, IClD, turns a simple CMOS oscillator into an FSK generator. When the data...
Transistors Ql and Q2 form the two halves of a free-running multivibrator whose frequency is...
This circuit is a two-channel baseband video switcher. Buffer amps Ul/Ql, U4/Q4, and associated...
Above circuit diagram is a easy, simple and cheap switching voltage regulator which has...
That circuit allows you to adjust the resistance (with a pot) and adjust the capacitance by...
You will be reading input from a keypad and display the corresponding button pressed unto a...
The MICRF112 is a high performance, easy to use, single chip ASK / FSK Transmitter IC for remote...
A typical, low cost, FSK Modulator TA0038 is implemented by injecting the modulation voltage into...
An excellent way to provide continuous and direct indication of ESV readings in even a large...
I`m making a small DC tesla coil with a rotating spark gap. The motor controlling the RSG draws...
A long time ago when telephones were so simple almost nothing could go amiss from an electrical...
The circuit of the unit is fairly simple, but is a bit irksome to set up. The reason is that...
With this basic circuit, the input current is fed directly into the summing node (pin 2) and the...
This is door knob touch alarm for your home security purpose. The alarm will be activated when...
Fantasy lights, wonderful changes can be used to store, dance hall or family holiday decorations....
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