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human_detection_sensor_system [2009/03/04 04:43] jonmashhuman_detection_sensor_system [2009/03/04 05:34] (current) jonmash
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 The output from the Pyro-Sensors cannot be read directly into the microcontroller, so the team has constructed an amplification circuit capable of amplifying the signal with a variable-gain of over 10,000 (80dB). The amplifier is a simple two-stage Op-Amp circuit using the LM324 series Op-Amps. The amplifier circuit can be seen in the gallery below. The output from the Pyro-Sensors cannot be read directly into the microcontroller, so the team has constructed an amplification circuit capable of amplifying the signal with a variable-gain of over 10,000 (80dB). The amplifier is a simple two-stage Op-Amp circuit using the LM324 series Op-Amps. The amplifier circuit can be seen in the gallery below.
  
-==== Datasheets ==== +^           Datasheets                                       ^ 
-  {{:datasheets:pirmanual.pdf|Pyroelectric Infrared Sensor}} +|{{:datasheets:pirmanual.pdf|Pyroelectric Infrared Sensor}}  
-  {{:datasheets:lp324n.pdf|LP324N Op-Amp}}+|{{:datasheets:lp324n.pdf|LP324N Op-Amp}}                    |
  
  
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 The thermopile array uses the I<sup>2</sup>C interface to communicate with the microcontroller. The thermopile array uses the I<sup>2</sup>C interface to communicate with the microcontroller.
  
-==== Datasheet ==== + 
-  [[http://www.robot-electronics.co.uk/htm/tpa81tech.htm|TPA81 - Infrared Thermopile Array]]+^           Datasheets                                                                       ^ 
 +|[[http://www.robot-electronics.co.uk/htm/tpa81tech.htm|TPA81 - Infrared Thermopile Array]]  |
  
 ===== Ultrasonic Range Finder ===== ===== Ultrasonic Range Finder =====
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 The SRF10 uses the I<sup>2</sup>C interface to communicate with the microcontroller. The SRF10 uses the I<sup>2</sup>C interface to communicate with the microcontroller.
  
-==== Datasheet ==== +^           Datasheets                                                                       ^ 
-  [[http://www.robot-electronics.co.uk/htm/srf10tech.htm|SRF10 - Ultrasonic range finder]]+|[[http://www.robot-electronics.co.uk/htm/srf10tech.htm|SRF10 - Ultrasonic range finder]]    | 
 + 
 +====== Software Development ====== 
 +  * [[FourPIR|Code for relaying four PIR sensor data to the PC via the serial port]] 
 +  * [[OnePIR|Code for relaying one PIR sensor data to the PC via the serial port]] 
 +  * [[TPA81Read| Code to read raw data from the TPA81 sensor to the console]]
  
-===== Photos ===== +====== Photos ====== 
-^           [[photos|Photo Galleries]]             ^ +^           [[photos|Photo Galleries]]             ^^
-|  [[Gallery-PIR|{{:gallery:dscn3002.jpg?300|}}]]  | +|  [[Gallery-PIR|{{:gallery:dscn3002.jpg?200|}}]]   {{:gallery:pirsensor.gif?150|}}  |  {{:gallery:srf10.jpg?200|}}  | 
-|  [[Gallery-PIR|PIR Amplifier]]                   |+|  [[Gallery-PIR|PIR Amplifier]]                   |  PIR Sensor                        SRF10 Range Finder           | 
 +|  {{:gallery:thermopile.jpg?200|}}                    |                                                                 | 
 +|  TPA81 Thermopile Array                          |                                                                 |
  
human_detection_sensor_system.1236141833.txt.gz · Last modified: by jonmash
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