Digital Miscellaneous Temperature Gauge
Posted on Nov 28, 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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Many modern audio recorders is now compatible with digital input S / PDIF (Sony / Philips Digital...
The circuit is built around a 555 oscillator (Ul), which is turned on when a trigger is applied...
I`ve decided to start selling these on ebay to raise some money for parts. Here`s a link to the...
Controlling your door lock through your personal cell phone was never this easy. Learn how to...
Building a Competition Buzzer Set, described the construction of a contest buzzer set....
For some ten years Texas Instruments have been developing solid state speech technology with the...
These two headlight reminder circuits are easy to install and operate on the KISS (Keep It Simple...
For circuits using TTL ICs the supply voltage is a great concern and a slight increase in supply...
Such voltmeters can be used for measurement of both dc and ac voltages and are very popular....
The simple pressure sensor alarm is built around a couple of readily available cheap components....
Sure, listening to VHF FM has great advantages over MW/LW AM from the old days ” now we have...
Using this schematic I doubled the range of my IR LED, the power drawn in the circuit is now...
Circuit as shown by the two and four decimal counter CD4017 password switch composed by the...
Both circuits are used to control the thyristor contactor KM action to overcome the break phase...
Circuit shown in Figure 3-121. The key component of electromagnetic holding brake is an...
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