Content for Phototransistor

Light sensing bristlebot

“his “level up” from your basic brainless bristlebot has the capacity to seek out or “run away” from light sources. Its great fun to lead through a maze with a lighter or torch - like a moth to the flame. Install …

Controlling a Servo with a PICAXE and an IR Sensor

“Learn how to combine a PICAXE, IR sensors, and a servo motor to create a device that responds to a moving stimulus. Spoilers: I hook it up to eyeballs that can follow a finger. PICAXEs are PIC microcontrollers that have …

Make an Optical Disk Display

“Every curious how DVDs work? Interested in learning some simple analog electronics? This Instructables will show you how to make an optical disk display project in only a few hours. What is an optical disk? An optical disk stores data …

Tiny robot family

“This is my growing family of tiny robots based on ATtiny controllers, pager motors and photo-transistors. These three little autonomous vehicles have a lot of similarities such as controller, battery and movement mechanism, and they all percieve the world through …