The phase-sensitive detection (PSD), popularly referred to as lock-in amplifier (LIA) has
been around for quite a long time. Lock-in amplifier has been quite a versatile measurement …

'El objetivo del libro es enseñar la arquitectura y la programación de los microcontroladores
en general, tomando como ejemplos los microcontroladores PIC de Microchip. La …

This paper reviews the direct connection of sensors to microcontrollers without using any
analogue circuit (such as an amplifier or analogue-to-digital converter) in the signal path …

This paper describes the design and implementation of a liquid-level measurement system
based on a remote grounded capacitive sensor. The electrodes of the capacitive sensor are …

Direct resistive sensor interface to a microcontroller has several advantages but has one
prominent disadvantage, namely, the measurement is affected by the resistances of: 1) wires …

This paper is a continuation of a previous work with regard to the direct connection of
differential sensors to microcontrollers without using intermediate electronics between them …

Systems using microcontrollers make the interface of a transducer with the digital world
much easier. They build smart, lucid, compact, cheap, and less power consuming electronic …

This paper proposes and analyses a direct interface circuit for capacitive humidity sensors.
Such a circuit relies on directly connecting the sensor to a microcontroller without using …

Wireless sensor networks (WSNs) are increasingly used in many fields. Still, power supply of
the nodes remains a challenge. Primary batteries are mainly used but energy harvesting …

This paper analyzes the energy consumption of direct interface circuits where the data
conversion of a resistive sensor is performed by a direct connection to a set of digital ports of …