Latest Lighting Technical Articles

Build a generator-powered LED headlight for a longboard for very cheap.

Build a generator-powered LED headlight for a longboard for very cheap.

Lasers are plentiful, inexpensive, and fun to use. Here's a target that reacts when it's hit by a laser beam.

Lasers are plentiful, inexpensive, and fun to use. Here's a target that reacts when it's hit by a laser beam.

This project explains how to isolate signals to eliminate ground loops in electronic systems.

This project explains how to isolate signals to eliminate ground loops in electronic systems.

Gather data via USB from a BH1745NUC optical sensor and then display color characteristics and illuminance values.

Gather data via USB from a BH1745NUC optical sensor and then display color characteristics and illuminance values.

Learn how to collect and process RGB data generated by the BH1745NUC color sensor IC.

Learn how to collect and process RGB data generated by the BH1745NUC color sensor IC.

Display colors by precisely controlling the intensity of red, green, and blue LEDs.

Display colors by precisely controlling the intensity of red, green, and blue LEDs.

Use data from an RGB sensor to improve the accuracy of illuminance measurements.

Use data from an RGB sensor to improve the accuracy of illuminance measurements.

Learn how to translate the output of a photosensor into an illuminance measurement.

Learn how to translate the output of a photosensor into an illuminance measurement.

Build an LED chaser with a little twist: we'll be using a microcontroller and an LCD along with the usual 4017 counters.

Build an LED chaser with a little twist: we'll be using a microcontroller and an LCD along with the usual 4017 counters.

A practical introduction to quantifying perceived light intensity.

A practical introduction to quantifying perceived light intensity.

Take a few minutes to characterize a light dependent resistor (LDR) and you can build a simple and reasonably accurate…

Take a few minutes to characterize a light dependent resistor (LDR) and you can build a simple and reasonably accurate light meter can be built using an LDR and an Arduino.

In this project, you'll learn how to wire an LED and flash it using the Raspberry Pi. Also, to isolate the Raspberry Pi's…

In this project, you'll learn how to wire an LED and flash it using the Raspberry Pi. Also, to isolate the Raspberry Pi's + 3.3VDC compliant output pins from supply voltages greater than this power source, an opto-isolator will be introduced as well.

The techniques discussed in previous articles can help us to understand and remedy stability problems observed in a…

The techniques discussed in previous articles can help us to understand and remedy stability problems observed in a common circuit used to amplify photodiode signals.

Here are some great power conversion topologies that can be used as alternatives to the boost converter; they are much…

Here are some great power conversion topologies that can be used as alternatives to the boost converter; they are much less vulnerable to short circuit load conditions.

Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The…

Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The emphasis is on safety, low price, and minimal modification of the toaster oven.

This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel…

This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.

Use a WS2812 RGB LED strip to visualize the pose of an MPU-6050 6-degree-of-freedom IMU in three dimensional space.

Use a WS2812 RGB LED strip to visualize the pose of an MPU-6050 6-degree-of-freedom IMU in three dimensional space.

Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266…

Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266 modules running NodeMCU using MQTT.

Part 5 in the “How to Make an Ambient Light Monitor” series.

Part 5 in the “How to Make an Ambient Light Monitor” series.