Photoelectric Sensor

A photoelectric sensor, or photo eye, is an equipment used to discover the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. They are largely used in industrial manufacturing. There are three different useful types: opposed (through beam), retro-reflective, and proximity-sensing (diffused).

Main Content

Arduino Interactive LED Coffee Table

“I made an interactive coffee table that turns led lights on under an object, when the object is placed over the table. Only the leds that are under that object will light up. It does this by effectively using proximity …

Arduino Pulse Oximeter

“Pulse oximeters are standard instruments for hospital settings. Using the relative absorbances of oxygenated and deoxygenated hemoglobin, these devices determine the percentage of a patient’s blood that is oxygenated (a healthy range being 94-98%). This figure can be lifesaving …

JF Time Fountain

“Harold “Doc” Edgerton, an American electrical engineer and photographer was noted for creating high-speed photography techniques. He developed and improved strobes and used them to freeze objects in motion so that they could be captured on film by a camera …