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Measurement (130)

Browse through a total of 130 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  

Weekly Roundup – Top Links for the 4th Week of October 2017

Adam Carlson - 10/26/17

Editor’s Note This week, I had the wonderful problem of having too much material to share in the [...]

Build Your Own Smart Bike Battery Gauge

T.K. Hareendran - 09/14/17

So you’d kind of like to know when the battery in your bike is getting a bit flat, [...]

DIY Bosch BMP280 Pressure Sensor Project Primer

T.K. Hareendran - 09/06/17

Nowadays, numerous electronic sensor modules are available on the market that can be combined with inexpensive microcontroller boards [...]

How to Get Started with a Microwave Radar Motion Sensor

T.K. Hareendran - 08/16/17

Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, [...]
digitimer 2

Matchbox-Sized Digital Timer

T.K. Hareendran - 04/12/17

For one of my hobby projects, I needed to add a small countdown timer at an affordable cost. [...]
EMFD-2

Simple EMF Detector/Meter

T.K. Hareendran - 02/09/17

I recently built a simple electromagnetic field (EMF) detector based on a code by Christian Figge that I [...]
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 [...]
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