To complement the 2-wire and 3-wire sensor transmitter blogs that Kevin Duke and I have already published on Precision Hub, my next few blog topics will be on 4-wire sensor transmitters.The blogs will ...

An IR sensor consists of IR Transmitter which is used for emitting IR rays and IR Receiver (Photodiode) which is used for detecting that emitted IR rays. Normally, the range of an IR radiation from a ...

The circuit uses an optoreflective sensor module that has an infrared (IR) LED and a phototransistor in a common package. The IR LED is the transmitter and the phototransistor the receiver. The ...

The interruption counter described here uses an infrared (IR) sensor that can sense a particular modulated frequency of infrared beam. A small transmitter circuit employing an IR LED is used to emit ...

Temperature Sensor solutions are used to measure temperature and have a wide range of uses in industrial, commercial applications. Temperature measurements are made using RTD (Resistance Temperature ...

PIR sensor, on Amazon or Ebay; PT2262 encoder; ATtiny85; 434 MHz RF transmitter; Several 500-1k Ohm resistors; LED (optional) The motion sensor is simply a PIR sensor connected to a 434MHz RF ...

Infrared Light Alarm Transmitter Circuit Schematic. Infrared Alarm Barrier ... diode) on and off is itself switched on an off at a rate of about 300 Hz. The reason for doing so is that most infrared ...

Designing an analog circuit can be a frustrating experience, as noted by Nick Cornford in his Design Idea (DI), “DIY RTD for a DMM.”With a fortnight’s struggle, I completed the design of 4 mA to 20mA, ...

In The basics of 4-20mA current loop transmitters, I discussed the basics of 4-20 mA transmitters, a popular communication method to and from field elements in factory automation and other industrial ...

Alleged 'iPhone 8' diagrams show display dimensions, sensor array. ... and an infrared transmitter and receiver, ... Based on the diagram, most of the sensors are embedded in the screen, ...