3DBuffalo Magnetic Limit Switch

Technical Sensors
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Start off your FRC season right with our magnetic sensor from 3DBuffalo!

Hey FRC teams! We are thrilled to introduce the MAGsense - our high-accuracy magnetic sensor designed specifically for FRC and FTC robots. It’s a reliable, low-power alternative to traditional limit switches that helps you detect a magnet precision while keeping your power consumption in check.

Building an elevator this season? The MAGsense ensures you’ll always have reliable height limits, keeping your mechanism safe and consistent. Working on an arm? Our sensor’s compact profile makes it perfect for detecting positions without taking up precious space. The MAGsense just works - plug it into your roboRIO, mount it where you need it, and you’re good to go.

What makes the MAGsense special?

  • High accuracy magnetic sensing for reliable operation
  • Ultra-low power consumption for efficient performance
  • Incredibly compact design - perfect for tight spaces
  • Competitive pricing that won’t break your budget
  • Simple plug-and-play setup with your roboRIO

As FRC alumni ourselves, we understand the importance of reliable components and strong support. That’s why we’re committed to providing not just great products, but also comprehensive documentation and long-term support for your team. Every MAGsense is thoroughly tested to ensure it meets our high-quality standards - because we know that every point in a match counts!

Ready to upgrade your robot? Visit our store

Special KICKOFF offer! Use code “KICKOFF25” at checkout to receive 10% off your order!

Have questions? Drop them below - we’re here to help make your 2025 robot amazing, or email us at [email protected]

Magnetic Switch
Magnetic Switch1080×1080 52.4 KB

6 Likes
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I might be misunderstanding this, but limit switches take as close to zero power as a sensor can, right?

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Great point, and sorry for any confusion. You’re right, traditional limit switches use very little power to no power. We’re not saying the MAGsense uses less; rather, it’s another low-power option with added benefits like non-contact sensing, and a smaller formfactor compared to competitors.

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Whats was model of the magnet that you used in testing also what are the max distances that the sensor can read?

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We utilized the high-strength magnets linked below for our testing, as they were the same magnets we used during the 2023 FRC season:

link to magnets

The sensor measurements we obtained using these magnets were as follows:

  • Top: ~23 mm
  • Back: ~25 mm
  • Front Side: ~20 mm
  • Sides: ~10 mm

These magnets are relatively strong and may not be suitable for all team applications. However, the data provided offers a valuable reference point for the sensor’s performance in scenarios requiring a heavy-duty application.