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Measurement (124)

Browse through a total of 124 measure projects. Easy-to-build DIY measurement projects, kits and electronic circuit schematics with guides.

audio indicators   battery indicators   battery monitors   metal detectors   temperature sensors   thermometers   vibration  

live fence tester

Cordless Live Fence Tester

T.K. Hareendran - 07/11/16

Electrified fencing is usually used to control animals with smaller and cheaper fence constructions than would otherwise be [...]
label sensor circuit

Detect Labels w/ Reflective Optical Sensor

T.K. Hareendran - 10/05/15

Here is the circuit of a little label sensor ideal for detecting labels on bottles. The circuit offers [...]
Input Offset Voltage Test Schematic

Test Op Amps Via Simple Input Offset Voltage Measurement

Jim Keith - 10/04/15

Measuring this one vital parameter (Input Offset Voltage) provides a simple means of determining if the DUT (Device [...]
inductive sensor working principle

Inductive Proximity Switch w/ Sensor

T.K. Hareendran - 09/28/15

Position Sensors play an important role in our daily lives. A position sensor, as the name indicates, provides [...]

Motor Speed Sensor Module Circuit

T.K. Hareendran - 09/22/15

Here is a motor speed sensor module, the major goal is to check the rate of an electric [...]
usb charger doctor

USB Charger Doctor Unboxed

T.K. Hareendran - 07/05/15

Recently I bought a little gizmo called as “USB Charger Doctor” from an online store. The little usb [...]
arduino fingerprint module

How To Use Fingerprint Identification Modules

T.K. Hareendran - 05/18/15

Biometric identification from a print made by an impression of the ridges in the skin of a finger [...]
Mains Voltage Sensor circuit

Mains Voltage Sensor

T.K. Hareendran - 05/07/15

This compact mains voltage sensor is intended to monitor and signal to another circuit, for instance a microcontroller, [...]
circuit diagram of the wind sensor from modern device

Measuring Air Flow

T.K. Hareendran - 04/24/15

Here is an introduction to the low cost anemometer (wind sensor) from Modern Device (http://moderndevice.com) . This small [...]
humidity to frequency converter circuit

Light & Humidity To Frequency Converter

T.K. Hareendran - 04/21/15

TSL235R is an eternal light-to-frequency converter, and its sensors are widely used as light sensor heads in today's [...]
current sensor circuit

Current Sensor Module For Microcontrollers w/ ACS712

T.K. Hareendran - 02/14/15

The title says it all - this article describes a microcontroller-compatible current sensor module you can build yourself, [...]
RPM sensor module circuit

RPM Sensor Module For Robotics w/ UGN3503

T.K. Hareendran - 10/20/14

If you are in a plan to build your own speedometer for your next robotic vehicle, ofcourse you [...]
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