Abstract: We present a low-power gas sensor design based on a capacitive micromachined ultrasonic transducer (CMUT), for use on self-powered wearable platforms. Earlier a CMUT-based sensor, with 70-mW ...

In the above circuit diagram, you can clearly see the complete layout ... playback using Bluetooth technology - the same module used in our AM demonstration. Arduino based Audio Spy Bug using NRF24L01 ...

Abstract: In this article, we present the design and analysis of an electrochemical circuit for measuring the concentrations of therapeutic drugs using structure-switching aptamers. Aptamers are ...

The device uses an ultrasonic sensor to detect nearby obstacles and provides real-time audio feedback, helping users navigate their environment more safely and independently.