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Measurement (129)

Browse through a total of 129 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  

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 [...]
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 [...]
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