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Replacing Coin acceptor to with Opto interrupter to initiate action

39 7
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  • #1 21675747
    Kevin Angelo Ma
    Anonymous  
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  • #2 21675746
    Ramputty Prithviraj
    Anonymous  
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  • #3 21675748
    Ramputty Prithviraj
    Anonymous  
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  • #4 21675749
    Kevin Angelo Ma
    Anonymous  
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  • #5 21675750
    Ramputty Prithviraj
    Anonymous  
  • #6 21675751
    richard gabric
    Anonymous  
  • #7 21675752
    Ramputty Prithviraj
    Anonymous  
  • #8 21675753
    richard gabric
    Anonymous  

Topic summary

A coin-operated height and weight BMI machine motherboard originally uses a GD 315 coin acceptor powered by 12 V. The user intends to replace this coin acceptor with a photo interrupter (opto interrupter) device operating at 5 V to initiate the machine's action. The main challenge is interfacing the opto interrupter output, which is typically normally closed (NC) and opens when interrupted by a coin, with the motherboard input that expects an active impulse signal to trigger operation. The opto interrupter's signal strength is insufficient to directly activate the motherboard. It is suggested to use an inverter circuit employing a transistor or FET powered by the 12 V supply to convert and amplify the opto interrupter output signal to the required logic level and polarity compatible with the motherboard.
Summary generated by the language model.
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