Abstract: This article presents an angular displacement sensor utilizing a double-ring resonator (DRR) and introduces an integrable and low-cost readout circuit to detect the transmission zero (TZ) ...

ESP32 is a tiny cheap 8$ module with a dual core 32-bit CPU and built in Wi-Fi and dual-mode Bluetooth with sufficient amount of 30 I/O pins for all basic electronics projects. All these features are ...

Abstract: In this paper, we present the design and the characterization of a wide-dynamic-range interface circuit for resistive gas-sensors able to operate without calibration. The circuit is based on ...