This is real. Hero Tech has built a retractable light saber that is using no visual effects. You cannot fight with it but it looks like the movie light saber. The two led light strips are attached to ...

Light Following Robot Circuit Diagram. We're diving into the hardware side of the Light Following Robot project, and things are getting exciting. Below is the circuit diagram for this project: The LDR ...

After some searching, I ended up using a microcontroller and a piece of code borrowed from the web that I tweaked and adapted. The microcontroller-based concept was chosen because I wanted to scale ...

‘Not me thinking automatic sinks are just constantly defective’: Black woman says automatic faucet doesn’t work for her—it works for white paper towel ‘I thought I was losing my mind ...

Automatic light intensity control using Arduino UNO and low-cost light sensors has been implemented in agricultural areas to reduce power consumption and eye strain. In addition to the usage of the ...

Light sensors used to track heart rate in wearable devices like the Apple Watch Series 5 and the Fitbit Versa 2 don’t work as well on darker skin or people with obesity, according to modeling ...

Sensor node (transmitter) Fig. 2: Circuit diagram of a wireless sensor node. As shown in circuit diagram of a sensor node in Fig. 2, there are only five major components in the transmitter circuit: 1.

Automatic Light Coding. Arduino Uno is used to compute the logics of the two IR sensors. The circuit is controlled through the software loaded in internal memory of the Arduino. The program ...