Testing Tools: Electronic Detector Circuits - Detect Things...
Detector & Measuring Circuits
Need a detector for your electronic circuit? These detectors can sense, detect and measure a variety of things, including sound, movement, lies, etc.
4 Comments - in Miscellaneous
Metal detectors a tons of fun. These metal detector electronic circuits will enable you to go hunting for all kinds of cool stuff, wherever you like!
Motion Detector Movement Detector Components
A bit different from other kits. We supply the three basic components for you to make your own movement detector. Included is a PCB mounted fresnel lens, a PIR movement sensor and the latest movement IC just released. Eight pages of application notes show
0 Comments - in Fun and Games
This is an extremely simple lie detector electronic circuit that can help tell if somebody is lying to you (oh how we hate liars!).
5 Comments - in Telephone
A simple circuit that flashes an LED when a cell phone has an incoming call. Uses a coil to pick-up the signal emitted during an incoming call event. Cell phone call detector.
Motion Detector
This super sensor detector sounds an alarm if someone approaches the unit. Adds safety to your home or office. Learn the basics of motion detector technology. Uses pyroelectric infrared sensor.
Motion Detector Ultrasonic Movement Detector
The circuit uses a matched pair of 40 Khz transducer elements to detect movement up to 22 feet away. You may add a relay (not included) to switch higher voltage loads. The unit switches a LED for movement indication. Sensitivity is setable via control. Cr
Infra Red Motion Movement Detector
This is an excellent security device, sees infra red heat of intruder in field of view. This is a recent design for a PIR detector; should not be underestimated. Rather than the usual opamps-amps and amplifiers, this kit uses a movement IC. Has PC board m
Water Detector Alarm Kit (Water Sensor)
Sometimes you need to detect water, right? Well this kit will allow you to do just that.
Geiger Counter Kit Radiation Alert Monitor
Radiation Alert Monitor 4 Kit or completed unit Geiger Counter
Liquid Level Controller
This circuit will allow you to control the level of a liquid. It switches a relay once the desired level is met.
1 Comment - in Miscellaneous
Schematics for electronic circuits that detect lightning in the sky by sensing signals at approximately 300kHz. Circuit theory of operation is discussed at length. Easy to build!
1 Comment - in Sound Activated
An electronic circuit that uses a regular 2-inch speaker to detect for low frequency vibrations in the ground (such as those cause by a deer or human walking), and sounds an alarm.
0 Comments - in Testing Tools
Complete instructions and circuit diagram for a Geiger counter meter device, which will allow you to measure radiation levels.
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