User manual

58
8.
Engineer Garage, Automatic bidirectional visitor counter using 8051
microcontroller (AT89C51). June 2012.
http://www.engineersgarage.com/microcontroller/8051projects/Bidirectional-
visitor-counter-AT89C51-circuit
9
“IR Proximity Sensor”, Last access: June 2012.
http://www.g9toengineering.com/AllSaints/infraredproximity.htm
10
Cytron Technologies, Project 7, Analog sensor: range using analog distance
sensor. June 2012.
http://tutorial.cytron.com.my/wp-content/uploads/2011/08/P7-User-Manual.pdf
11
Ben Coxworth, Intelligent street light system uses 80 percent less electricity. 12
July 2011.
http://www.gizmag.com/motion-sensing-streetlight-system/19199/
12
Madeline Bullock, How relays work. June 2012.
http://electronics.howstuffworks.com/relay1.htm
13
“Cytron Technologies Head to Toe”, Last access: June 2012.
http://cytron.com.my/
14
Miniscience Inc, Digital counter (classic design). June 2012.
http://catalog.miniscience.com/Catalog/Counter/Digital_Classic_Counter.html
15
RobotShop, BasicATOM40-M Microcontroller Module. June 2012.
http://www.robotshop.com/basic-micro-basicatom40-m-microcontroller-
module-1.html
16
“SK40C user manual datasheet”, Last access: June 2012.
http://www.cytron.com.my/usr_attachment/SK40C_Users_Manual.pdf