Proximity Sensor Circuit
This presence detector or proximity sensor circuit reacts in presence of any conductor object including humans. Sensitivity is adjustable with P1 which will be ...
Liquid Detector Water Sensor Circuit
This is a very simple liquid detector that use a relay to open an evacuation van. You can use it for water or any liquid that conduct electricity. Use any PNP t...
Electronic Muscle Stimulator Circuit
This is an electronic muscle stimulator circuit that stimulates nerves of that part of your body where electrodes are attached. It is useful to relieve hea.....
Fishing Thermometer Project Circuit
This simple to construct water fishing thermometer circuit is intended to be used in sports applications like for example a fishing contest. A sensor measu.....
Cell Phone Detector aka Mobile Bug
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Lightning Detector Circuit
This DIY lightning detector circuit is a very sensitive static electricity detector that can provide an early warning of approaching storms from inter-cloud dis...
Thermal imaging sensor from 16x16 pixel array
Irisys is offering a range of five thermal imaging temperature sensors based on a 16G—16 pixel array offering a choice of temperature range, accuracy and meas...
Missing pulse detects position
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Precision capacitive sensor interface
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Ultrasonic Range & Imager
This is the electronic schematic of the homebuilt SONAR. Only one piezoelectric transducer is used for both transmit & receive. This transducer is switched from...
transistor circuit for counting wheel rotations
Hey guys, I am new to the forum. I hope this is the right section. Sorry if I ask some dumb questions, I am new to circuit design. This is for my.....
Light Sensitive trigger
I have put all the components on the PCB, now i dont know anything about relays, so i`m having trouble connecting the power and the load?.....
JFET static detector
Hello, this is my first post here. I built several versions of JFET static charge detectors and I`m seeing some differences I can`t explain so I`m.....
Light Sensor including Photocell and LDR Sensor
Electronics Tutorial about Light Sensor including Photocells, LDR, Photodiodes, Phototransistors, Photovoltaic Cells and Light Dependent Resistor.....
Basic Hall Effect Sensor IC
Electronics Tutorial about the Hall Effect Sensor and Magnetic Hall Effect Switch which is an Output Transducer used to detect Magnetic Fields.....
Digital Light Sensor
If you are looking for a digital light sensor that is able to measure the intensity of light and easy interface with a microcontroller, Intersil ISL29001 is one...
PIR Motion Sensor
The objective of this project is to use inexpensive PIR sensor to detect if a human has moved. To build this project I use a PIC18F25K20 microcontroller to dete...
Process-Control
The Measured Value and The Setpoint are two inputs to a Control System. The Measured Value is the Amplified input of a Transducer or Sensor for some Parameter t...
Water Level Indicator
Water Tank Level Indicator Circuit Diagram Simple, two-wire, remote monitoring unit,Three-LED level display, 9V battery powered Circuit.....
VCR Video Detector Switch Controller Circuit
VCR Camera Video Detector Switch Controller Circuit This video detector switch controller circuit uses the video output from a VCR or camera to.....