02-01-2013, 12:51 PM
Motion sensing power point controller
[attachment=46135]
INTRODUCTION
We built a controller that interfaces with a computer running a PowerPoint display through USB. The device can control slide transitions based on hand motions or button presses.
Upon detecting the approach of a person, the controller sends a keystroke to the computer which wakes up the display.
The controller is also a very good way to save electricity as it allows displays to idle and turn off when no one is nearby.
MAIN COMPONENTS
Passive Infra Red(PIR) Sensor
5 v power supply
IR Sensor circuits
Transistor as a switch
Mouse as a switch
PIN jumper cable
Push Buttons
Small solder Board
ATmega 16
PIR SENSOR
The PIR sensor is a pyroelectric sensor that detects changes in infrared radiation levels through two slits.
When a warm body passes through, one slit detects a higher IR level than the other, and a signal is sent to the MCU.
FEATURES
Single bit output.
Small size makes it easy to conceal.
Compatible with all Parallax microcontrollers.
[attachment=46135]
INTRODUCTION
We built a controller that interfaces with a computer running a PowerPoint display through USB. The device can control slide transitions based on hand motions or button presses.
Upon detecting the approach of a person, the controller sends a keystroke to the computer which wakes up the display.
The controller is also a very good way to save electricity as it allows displays to idle and turn off when no one is nearby.
MAIN COMPONENTS
Passive Infra Red(PIR) Sensor
5 v power supply
IR Sensor circuits
Transistor as a switch
Mouse as a switch
PIN jumper cable
Push Buttons
Small solder Board
ATmega 16
PIR SENSOR
The PIR sensor is a pyroelectric sensor that detects changes in infrared radiation levels through two slits.
When a warm body passes through, one slit detects a higher IR level than the other, and a signal is sent to the MCU.
FEATURES
Single bit output.
Small size makes it easy to conceal.
Compatible with all Parallax microcontrollers.