Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This ...

In this letter, we proposed an ultrasonic sensor-based resolution tunable displacement measurement system by using an extension spring. In the proposed method, a linear extension spring is vertically ...

The smart water controller for metro water supply lines described in this work makes use of a relay, an ultrasonic sensor, a flow sensor, a solenoid valve, GPS, and GSM. The planned system is intended ...

Methane sensing technologies have wide applications, including leak detection and repair in the energy sector and emissions monitoring from landfills and agriculture. Lower-cost units, as opposed to ...

Amazon Has a $20 Sleep Mask Down to Just $4 Today Using This Hidden Promo Code Plus this Switch 2 Power Bank is down to $12 at Amazon as well.