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sensors circuit – Circuit Schematic
sensors circuit
Touch sensor Relaxation oscillator used in the hysteresis lab. The variable capacitor in this schematic is a person`s finger and a touch plate made from alumi...
Gas Sensor Leakage Detector – Circuit Schematic
Gas Sensor Leakage Detector
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4-20 mA current loop circuit – Circuit Schematic
4-20 mA current loop circuit
Continued from the previous post. The same priciple is true for the followings, temperature to current transmitter. In this case the input voltage is propotiona...
FYProject12 – Circuit Schematic
FYProject12
The objectives of this experiment is to test the range of the ultrasonic sensors(transmitter and receiver) being used in this project. The senor will be tested ...
Automatic pH Controller – Circuit Schematic
Automatic pH Controller
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Light Sensor circuit – Circuit Schematic
Light Sensor circuit
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home-made light-operated camera trigger – Circuit Schematic
home-made light-operated camera trigger
This device is used to photograph moving objects by triggering a camera or flashgun when one or two light beams are interrupted. It was designed to capture inse...
Frequency/Tone Decoder Circuit Using TC9400 FVC – Circuit Schematic
Frequency/Tone Decoder Circuit Using TC9400 FVC
Another application of FVC (frequency-to-voltage converter) is tone/frequency decoder. This circuit is used to determine the frequency band of an oscillation si...
Water Level Sensor Circuit Using LM1830 Single Chip – Circuit Schematic
Water Level Sensor Circuit Using LM1830 Single Chip
This is a water sensor circuit design using based on a Conductive Liquid Level Sensor, this single chip circuit is very compact and simple. This circuit is an a...
Capacitive Sensor – Circuit Schematic
Capacitive Sensor
Q1, Q2 & Q3 form a high impedance super-Darlington that drives the relay, amplifying the 50 or 60Hz alternate mains-supply frequency induced in the sensor by th...
Car Parking Sensor schematic – Circuit Schematic
Car Parking Sensor schematic
This circuit can be used for an assist in parking the car near the garage wall backing up Pls. LED D7 illuminates Pls bumper-wall distance is about 20 cm. , D7 ...
Turning analog inputs into multi-switch digital inputs – Circuit Schematic
Turning analog inputs into multi-switch digital inputs
I am interested in creating an interactive LED gameboard of some kind (or even a sort of "Stargate" DHD-type sci-fi prop!), where each square or tile is lit up ...
Connecting Hall Effect Sensor To BS2 – Circuit Schematic
Connecting Hall Effect Sensor To BS2
I have several Hall Effect sensors and would like to use them with my BS2. One application would be to count wheel turns. I have done a search of the internet b...
Moisture Sensor Project – Circuit Schematic
Moisture Sensor Project
I want the final package to be as invisible as possible, and without any wires / adapters / etc. Obviously that requires me to run this project from a small bat...
Spoofing magnetic swipe cards – Circuit Schematic
Spoofing magnetic swipe cards
About a year ago I threw a magnetic swipe card reader into a larger Digikey order. I didn`t have any specific plans for it at the time; mostly I was just curiou...
remote field recorders automated frog call data loggers – Circuit Schematic
remote field recorders automated frog call data loggers
Automated frog call data loggers have been used successfully to provide information on: (1) species presence at the time of sampling (that is, species likely to...
Phase detector and light self-test card A2 – Circuit Schematic
Phase detector and light self-test card A2
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Hall Effect Sensors Magnetic Field – Circuit Schematic
Hall Effect Sensors Magnetic Field
Hall Effect sensor will produce a voltage proportional to the magnetic field strength received by a Hall effect sensor tersebut. Sensor it only consists of a si...
Geiger counter – Circuit Schematic
Geiger counter
This experiment has two main objectives. First, we will become familiar with the characteristics of the Geiger-MG ller (GM) tube, including the properties of th...
Add a sensor to a board and measure something with it – Circuit Schematic
Add a sensor to a board and measure something with it
This weekG•s plan is to build a device that warns of the potential of a knockdown the process by which an over-canvassed ship is lain over on her beam-ends. T...