Latest Light Sensors Projects

To complete this project, we add backlight control and temperature-sensing functionality to the clock we built in the…

To complete this project, we add backlight control and temperature-sensing functionality to the clock we built in the previous installments.

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along…

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along the way, we’ll learn about astable multivibrators and the Darlington pair.

Get acquainted with using I2C with the Quark D2000 development board by interfacing an ambient light sensor and an LCD.

Get acquainted with using I2C with the Quark D2000 development board by interfacing an ambient light sensor and an LCD.

Freeze moments in time to easily produce extraordinary close-up pictures with your digital camera, an Arduino, and these…

Freeze moments in time to easily produce extraordinary close-up pictures with your digital camera, an Arduino, and these simple circuits.

In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.

In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.

In part 2 of the LED saber project, we'll assemble the power and audio systems.

In part 2 of the LED saber project, we'll assemble the power and audio 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.

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

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

Monitoring the output of a light-dependent resistor, or photoresistor, allows the Arduino to know how light or dark it…

Monitoring the output of a light-dependent resistor, or photoresistor, allows the Arduino to know how light or dark it is. When the light falls below a certain level, the Arduino turns on a couple of LEDs.