I havebeen researching a project which will help me with my understanding of electronics, networking, and programming. I decided to build an online thermometer which could be used in applications that need temperature monitoring. I currently work in a lab environment where I test, troubleshoot, and calibrate equipment which is installed in nuclear
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power plants. Each module must have a burn in time ranging from 24 hrs to 360 hrs per module under max load conditions. I could use my online temperature sensor to monitor the efficiency of the cooling system in the burn in area. Other applications could be the monitoring of a server room. The Arduino allows up to 6 sensors to be installed so this would be efficient to monitor a normal sized server room. I could use a program called Pachube to monitor the temperature ranges over time and see where the servers and equipment get the warmest. This could then be tied into another program which could give an administrator a warning e-mail if the room temperature suddenly started rising. I first need a network cable to connect my ethernet shield to a router ( if connecting straight to a computer the cable will need to be a crossover cable). Spread out twisted pair wires. I aligned them according to the T568B standard because it is more common in the industry. Here`s a diagram of both options and a pinout of a crossover cable. Insert the cut wires into an RJ-45 plug withwhite/orange wire on the left side. Make sure that the plastic insertion tab is facing down. Also ensure that the wires are pushed in far enough by inspecting the end. If you can`t see the wire all the way to the end then push wires in further before crimping. The great thing about the Seeed ethernet shield is they leave room on the board to terminate wires and...
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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