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  • About
    • Importance of STEM and Robotics Education
    • Comparing Education Robotics
    • Why EZ-Robot?
    • Why littleBits?
    • Why Cubelets?
    • Why RoboGarden?
    • Our Team
    • Clients
    • Testimonials
  • Store
  • Training/Curriculum
    • Free Webinars
    • Training >
      • Free STEM PD Sessions
    • Curriculum >
      • Introduction to EZ-Robot Curriculum
      • EZ-Robot After School Curriculum
  • Programs
    • Free Robotics Presentations
    • In-School Field Trips
    • STEM & Robotics Residencies
    • After School Robotics Programs >
      • Alberta
      • Ontario
      • Utah
      • Virginia >
        • Manassas Park Robotics Programs
    • Evening & Weekend Robotics Programs >
      • Burlington, ON
      • Milton, ON
    • Robotics Summer Camps >
      • Utah Robotics Programs
    • Robotics for Home Schoolers
    • Start a Robotics Program in Your City
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  • littleBits Threshold

littleBits Threshold

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Think of the threshold as a toll booth. When the signal passing through a circuit reaches it, the threshold decides whether or not it can continue. Use it to make any sensor Bit (like a temperature sensor) into a trigger Bit!

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The threshold is a minimum parts count design, using only a single opamp to compare the input signal to an onboard reference that is set via the potentiometer control. U1 is configured as a non-inverting comparator with approximately 100mV of hysteresis provided by R1 and R3. VR1 provides the comparator's reference. C1 is a bypass capacitor for U1 that sources current to the opamp during fast switching events.

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