Temperature Relay Circuit
Posted on Feb 6, 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.....
.
An AC millivoltmeter - calibrated in dB - with a range of 30V down to 3mV full scale (80dB range)...
Pressing the pushbutton of the transmitter, a sound and/or light alert is activated in the...
This circuit can be used to remotely monitor a loudspeaker, alarm, or audio source for presence...
The schematic requires few components, because the timer function has been incorporated by...
When SI is depressed, an initial positive voltage is placed on C2 and the noninverting terminal...
Three individual flashing circuits that use an LM3909 LED flasher/oscillator IC create the...
I have few Kenwood TK-760G-1 transceivers (two-way radios) and they all were programmed to one...
The circuit is quite simple thanks to the use of MAX638CPA 5V CMOS Step Down Adjustable Switching...
The fan runs constantly in many PCs, which may not even be necessary. A simple controller circuit...
A digital micro-ohm meter is necessary to verify the condition of shunts used in the...
As you can see in the circuit diagram this LM317 power supply electronic project require few...
We will use them to show current room temperature using a LM35 temperature sensor. Please note...
U1 is a Complex Interface Adapter (CIA). Both parallel ports are used to decode the keyswitches...
This circuit came from a need for a quick and dirty network tester that could be operated by...
The only way to know how fast a particular battery can recharge itself is to put it under load,...
This schematic shows a peak-reading diode voltmeter driven by two stages of amplification. A 100-...
This small transmitter can arrive the more than 1 km in favorable conditions of emission. The...
Figure 2-80 with the SH-868 is an integrated circuit made music flash circuit, which uses three...
characters left: