IR Receiver Board. Global Variables Main() for GOTO_Beacon Program Call three functions Note: you need to change freq for the beacon you want to find!

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Presentation transcript:

IR Receiver Board

Global Variables Main() for GOTO_Beacon Program Call three functions Note: you need to change freq for the beacon you want to find!

amplifier Tuning circuit From previous stage To next stage Beacon Frequency Selection (filter) AD14 Freq select (0=1kHz, 1=10kHz)

Read_PD() Function

Infrared Detectors Selector To next stage counter LEDs AD16 Counter reset AD15 pulse IR Detector Selection Count output set to zero Get ready to count Increment count (0 to 1 transition)

amplifier Tuning circuit From previous stage To next stage Beacon Frequency Selection (filter) AD14 Freq select (0=1kHz, 1=10kHz)

Exposure Control Circuit AD15 From previous stage To AD1 (VEX Analog input) Amplifier 1 Clear ‘film’ (discharge C14) 0 Open ‘shutter’ (allow C14 to charge)

expose_and_read() Function

Main() for GOTO_Beacon Program Find maximum intensity

find_max() Function

Main() for GOTO_Beacon Program Move the robot

Move() Program

limit_pwm() Program