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4-20mA simulation circuit for PLC – Circuit Schematic
4-20mA simulation circuit for PLC
I am looking for a simple circuit to simulate sensor inputs to PLC. Sensors take 12VDC and outputs 4-20mA. I was looking at your XTR series devices which seems ...
Fluid Level Sensor – Circuit Schematic
Fluid Level Sensor
R1 = 470K N1, N2 = MC14093B R2 = 15M* T1 = 2N3906 (these will work also: PN200, 2N4413) C1-C4 = 2N2 (2. 2nF) (NTE159, ECG159, BC557, BC157, TUP ) D1 = 1N4001 Ry...
HeartWave – Circuit Schematic
HeartWave
HeartWave visualizes your pulse, turning heartbeats into waves. One or two people can activate HeartWave. To begin, users hold their hands against sensors on th...
Super Motion Sensor Ultrasonic Motion Detector – Circuit Schematic
Super Motion Sensor Ultrasonic Motion Detector
Diploma Final Year Project represents the culmination of our learning process, where it is a must to put into use from previously learned engineering and person...
Micromouse Sensors – Circuit Schematic
Micromouse Sensors
Ok, its been a while since I did much more than think about my micromouse, but over the last week or so I actually did some work` on the sensor design First off...
Simple Electromagnetic Field Detector Schematic – Circuit Schematic
Simple Electromagnetic Field Detector Schematic
This circuit is sensitive to low frequency electromagnetic radiation and will detect for example hidden wiring or the field that encompasses a transformer. Pick...
Line Following Robot Sensor – Circuit Schematic
Line Following Robot Sensor
This Line Following Robot sensor or surface scanner for robots is a very simple, stamp-sized, short range (5-10mm) Infrared proximity detector wired around a st...
Room Noise Detector Schematic Circuit – Circuit Schematic
Room Noise Detector Schematic Circuit
This circuit is intended to signal, through a flashing LED, the exceeding of a fixed threshold in room noise, chosen from three fixed levels, namely 50, 70 & 85...
NSLU2 – Circuit Schematic
NSLU2
Aquaponics systems need a good water quality, and one of the parameters is pH value, which needs to be within a certain range in order for the fish and plants t...
Make a Simplest Temperature Indicator Circuit – Circuit Schematic
Make a Simplest Temperature Indicator Circuit
As we know that all semiconductors have this bad habit of changing its basic characteristics in response to ambient temperature changes. Especially basic elec...
DTMF Proximity Detector – Circuit Schematic
DTMF Proximity Detector
A DTMF-based IR transmitter and receiver pair can be used to realize a proximity detector. The circuit presented here enables you to detect any object capable o...
Smoke Detector Circuit – Circuit Schematic
Smoke Detector Circuit
It relies on the smoke that is produced in the event of a fire and passes between a bulb and an LDR, the amount of light falling on the LDR decreases. This type...
heatsink temperature monitor circuit – Circuit Schematic
heatsink temperature monitor circuit
This heatsink temperature monitor circuit signals via 3 LEDs when the temperature exceeds 2 boundary levels. When the heatsink temperature is below 50 60oC (122...
SimpleThermometer – Circuit Schematic
SimpleThermometer
This circuit is a simple dual simplex to half-duplex driver for 1-wire devices, although it does not work with all of them, because some draw too much current. ...
Transistor Geiger Counter – Circuit Schematic
Transistor Geiger Counter
One of the most unfortunate features of the usual portable Geiger counter is the short life of the expensive high-voltage batteries...
How to Design a Blood Pressure Monitor BPM Using the Flexis QE128 Family from Freescale – Circuit Schematic
How to Design a Blood Pressure Monitor BPM Using the Flexis QE128 Family from Freescale
This article shows how to implement a system that can measure arterial blood pressure values...
sensors circuits – Circuit Schematic
sensors circuits
All of our electronic circuits were originally constructed on breadboards. Once the circuits were working, we soldered them on perfboards to give us a more robu...
Bowling Game – Circuit Schematic
Bowling Game
This circuit is used to sense the insertion of a penny. Before the penny is inserted, current is flowing through the detector (transistor) side of the optointer...
Detection systems in PET – Circuit Schematic
Detection systems in PET
Detection systems are a key component of any imaging system, and an understanding of their properties is important for establishing appropriate operating criter...
Vehicle Sensor Control for Parking Lot Management System – Circuit Schematic
Vehicle Sensor Control for Parking Lot Management System
As the title indicates the goal of the project was to develop a parking lot management system. In this project we had reduced our project into 5 design phases. ...