Isolated Analog Input Module v2

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https://www.electronics-lab.com/project/isolated-analog-input-module-v2/

This Isolated Analog Input module is designed for industrial applications, optically isolating 0−5V sensor signals to output 0−3.3V for microcontrollers. It uses a linear optocoupler (3750V isolation) and requires two separate 5V supplies. A simple resistor change allows it to accept 0−10V inputs.

Isolated Analog Control with Potentiometer

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https://www.electronics-lab.com/project/isolated-analog-control-with-potentiometer/

This module is an Isolated Potentiometer featuring an LOC110 linear optocoupler (with 3750V isolation) and an isolated DC-DC converter, operating from a single 5V supply. It provides a 0−3.3V isolated analog output from the onboard 10K pot for industrial control and automation.

Linear Capacitive Proximity Sensor

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https://www.electronics-lab.com/project/linear-capacitive-proximity-sensor/

The project presented here is an analog capacitive proximity sensor. The circuit is from Texas Instruments application note. Most conventional capacitive proximity sensors produce a “1” or “0” output, this circuit produces a DC output that is a function of the size and relative permittivity of an object passing between the sense capacitor plates. Different […]

Contactless Potentiometer – 12bit Rotary Position Sensor with Analog or PWM Output

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https://www.electronics-lab.com/project/contactless-potentiometer-12bit-rotary-position-sensor-with-analog-or-pwm-output/

This is an easy-to-program magnetic rotary position sensor with high-resolution 12-bit analog or PWM output. This contactless system measures the absolute angle of a diametric magnetized on-axis magnet. The project is designed for contactless potentiometer applications and its robust design eliminates the influence of any homogenous external stray magnetic fields.  The industry-standard I²C interface supports […]