Digital Miscellaneous Temperature Gauge
Posted on Nov 28, 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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When a remote control signal is received, the energy stored in C2 drives the emitter diode. At...
This programmer requires only a basic terminal program capable of uploading an ascii PIC HEX...
This encoder uses a single contact per key keyboard and provides all other switching functions...
This bull horn uses U1 as a driver stage and U2 as an output driver. U1 is set up for a gain of...
The need for a device that can detect and extinguish a fire on its own is long past due. Many...
My task for the system was to implement and program all the hardware devices and make data...
Before you begin a project like this remember: mains voltage is dangerous so if you are not 100%...
The ICL7106 Integrated circuit contain all the active circuitry for a 3 1/2 digit panel meter...
It will allow your car headlights to flash on and off at the same time or it will cause them to...
This is a simple schematic which can be assembled to control a lamp with a Sony TV remote...
It uses a relay control. The voice switch is characterized by: when the first clap, then through...
Circuit shown in Figure 3-154. Figure, KM3 braking contactors. Shutdown, you can disconnect the...
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