Latest Optical Sensors Technical Articles

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Designing a System Monitor 4-MUX LCD Driver Solution

This application note describes a simple hardware implementation of a 4-Mux LCD driver using time division multiplexing techniques along with system monitoring using a GreenPAK IC.

April 18, 2019 by Krupa Bhavsar, Dialog Semiconductor

Electrical Symbols for Electronic Components: Passive Components

This two-article series provides an overview of circuit symbols, along with some information on the components that they represent.

October 31, 2018 by Robert Keim

Understanding and Implementing Charge Amplifiers for Piezoelectric Sensor Systems

In this article we’ll explore a circuit that produces an output voltage proportional to the charge generated by a piezoelectric transducer.

October 22, 2018 by Robert Keim

Understanding and Modeling Piezoelectric Sensors

This article explains some theory behind piezoelectric sensors and presents an equivalent circuit that you can use when you’re designing sensor systems.

October 15, 2018 by Robert Keim

Hardware Assessment: OPB9000 Reflective Light Sensor from TTElectronics

The OPB9000 is a reflective light sensor from TTElectronics with programmable output and sensitivity levels.

July 27, 2018 by Mark Hughes

Beyond the Optocoupler: Understanding Digital Isolators

Optocouplers are undoubtedly effective, but alternative isolation technologies may be a better choice for your application.

July 13, 2018 by Robert Keim

Hardware Assessment: LightCrafter Evaluation Kit for BeagleBoard Black from Texas Instruments

The Texas Instruments DLPDLCR2000EVM is a demonstration cape designed to plug into a BeagleBone Black (BBB) and provide instant-on projection capabilities using a digital micromirror device and a relatively high-power RGB LED.

July 09, 2018 by Mark Hughes

Hardware Evaluation for the Cypress S6AE102A/S6AE103A Eval Kit for Energy Harvesting Applications

In this article, we will assess and characterize the hardware of two power management IC development boards from Cypress Semiconductor, designed for energy-harvesting applications.

May 08, 2018 by Mark Hughes

Comparing Optical Sensors: Understanding D-Star

This technical brief discusses a parameter that conveys the sensitivity of an optical detector.

April 05, 2018 by Robert Keim

How to Build a Particulate Matter Detector for Air Quality Measurement

Use a Honeywell particle sensor to measure 2.5 µm PM and 10.0 µm PM concentrations in your environment.

March 28, 2018 by Raymond Genovese

Capacitive Control Panel PCB Design Considerations for TI’s MSP430FR2633 Microcontroller

This article provides a closer look at the PCB design considerations and programming of a custom capacitive touch interface device.

February 07, 2018 by Mark Hughes

The MIT-i Color Blender! RGB LED Color Blending

Blending colors may sound elementary but it is vital in drawing attention to your project with RGB LEDs!

November 08, 2017 by Ryan Jones

How to Interface an Ultrasonic Sensor with an LCD Using a Microcontroller Dev Kit

Let's interface an ultrasonic sensor and a lighting system! In this project, we'll design a sensor subsystem and then use it in a parking sensor application.

November 02, 2017 by Nick Davis

How to Build a Weighing Scale Using a Load Cell and a Microcontroller

In this project, we're making a weighing scale using a C8051 microcontroller development kit, a load cell, and the Simplicity Studio IDE. The measured weight will be displayed on an LCD screen.

October 10, 2017 by Nick Davis

Adding an LCD and Keypad to a Tachometer and Speedometer

In part two of the tachometer/speedometer project, we'll add a keypad and LCD for easier user interaction.

September 18, 2017 by Nick Davis

How to Build a Tachometer/Speedometer with an Optoelectronic Sensor, a Microcontroller, and a Disc

Learn how to make a tachometer and speedometer using a C8051 microcontroller, an optoelectronic sensor, and a spinning disc.

September 06, 2017 by Nick Davis

E-paper Displays: Improving the User Experience of Low-Power Devices

Critical to the success of any product is its user experience. From household appliances through to websites, the ones that succeed are both functional and easy–or even enjoyable–to use.

July 18, 2017 by Scott Soong, Pervasive Displays

An Introduction to Optoelectronics

In this article, we talk about the basics of optoelectronics, including a brief lecture on photons. Also, various optoelectronic devices will be discussed including lamps, LEDs, photodiodes, photoresistors, and laser diodes.

July 10, 2017 by Nick Davis

An Introduction to Motion Sensors: PIR, Tilt, Force, and More

Learn about various movement-type sensors including accelerometers, tilt sensors, vibration sensors, PIR (passive infrared) sensors, and rotation sensors.

June 19, 2017 by Nick Davis

Radio Meets Fiber Optics: RF Over Fiber

Radio Over Fiber (ROF) combines RF and optics, providing optical links to replace strategic portions of cellular, satellite, and copper based systems.

June 14, 2017 by Marie Christiano