Mini GSM localizer without GPS
Posted on Feb 5, 2014
Related Circuits
New Circuits
-
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.....
.
The unit described here is simple to build, and can be quite small. The picture below shows the...
The MC1596/MC1496 makes an excellent SSB product detector. This product detector has a...
This circuit shows a typical multiplex system intended to carry one of 8 inputs into a remote...
One Advantage of these two units is the Sensor can be placed Away from the heater, therefore...
This is 12V Car Battery Charger simple circuit. This circuit is designed to solve some problems...
The idea was to show time passing, but instead of a traditional clock face or digits or lights...
I have posted wide varieties ofsmall electronic projects onwater level sensor in Circuits...
The following circuit shows about Practical Electronics/Plugins/Astable Circuit Diagram. This...
a miniature version of the classic PONG game. The PONG game was invented back in 1966 by Ralph...
This LM1830 low level detector can use an audio indication (speaker ) or a visual indicator (LED-...
This is a compact, easy to build amplifier that uses one IC only but delivers 40 watts of audio...
The simple pressure sensor alarm is built around a couple of readily available cheap components....
A modification to David Knight`s linear detector circuit. I wanted to build a "hi-fidelity" AM...
The AVO VCM 163 is one of the few tube testers (British: valve tester) being able to measure tube...
characters left: