Nov/Dec 2001 home page.
|Smarter Infrared Proximity Detection||Rich Kappmeier goes to into great detail on how he implemented a reliable IR proximity detection system.
Topics: Microcontrollers, Electronics
|A Microphone Frequency Sensor||Eli Kolberg shows us an interesting circuit for doing frequency detection using an A/D port on your microcontroller and a National Frequency to Voltage converter.
|Interfacing the GP2D02 to a Microchip PIC||Aaron Ramsey shows us how to implement a GP2D02 IR Distance Sensor using a PIC chip and a servo motor.
Topics: Electronics, Sensors
|How to build a spinning sign||Theodore Johnson explains how he built a spinning sign, including some really interesting ideas about rotating power connections.
Topics: Projects, Microcontrollers, Electronics, Motors/Locomotion, Programming/Algorithms, Construction Techniques
|Building a variable voltage power supply||Ross Wolin has a project building a power supply with a variable output voltage.
Topics: Projects, Electronics, Power