SparkFun Linear 3D Hall-Effect Sensor - TMAG5273 (Qwiic)

The SparkFun TMAG5273 Qwiic Linear 3D Hall-Effect Sensor is a low-power, high-precision magnetic field sensor that can detect a magnetic field's presence, strength, and direction in three dimensions. This board is perfect for applications involving magnetic proximity detection, door and window sensing, mobile rotor and control, and more, all on a Standard 1in. x 1in. Qwiic breakout!

The TMAG5273 from Texas Instruments possesses a linear magnetic range configurable to either ±40 mT or ±80 mT and TI's integrated angle calculation engine (CORDIC) with gain and offset adjustment to be used in various applications. In addition, the included magnetic tamper detection and wake-up/threshold settings can be configured to trigger interrupts through the I2C interface or only with the dedicated interrupt pin.

With a low power consumption rate of only 2.3mA in Active Mode (1µA in sleep mode), a high precision of ±0.5% typical accuracy, a Disable button (tied to the pin with the same name), and a built-in temperature sensor, the SparkFun TMAG5273 Linear 3D Hall-Effect board is a great and economical choice for anyone who needs a low-power, high-precision magnetic field sensor.

The Linear 3D Hall-Effect Sensor communicates via I2C, so we've broken out each of those pins to our Qwiic system, so no soldering is required to connect it to the rest of your system! However, if you would prefer, the I2C pins are also broken out to standard 0.1in.-spaced pins.

The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

Breakout Board

  • Dimensions: 1in. x 1in. Standard-footprint
  • Two Horizontal Qwiic Connectors
  • Four Mounting Holes:
    • 4-40 screw compatible
  • Six PTH Pins
    • 3V3, GND, SCL, SDA, INT, Disable
  • Power LED (Red)
  • Disable Button

TMAG5273 Hall Effect Sensor

  • Configurable I2C Address:
    • 0x35 (Default) (7-bit)
  • Magnetic Range (Sensitivity):
    • ± 40mT (820 LSB/mT)
    • ± 80mT (410 LSB/mT)
  • Magnetic Drift: 5%
  • Rotational Accuracy: ± 0.5°/360° rotation
  • Voltage Range: 1.7 - 3.6V
    • Sleep: 5nA
    • Wake-Up/Sleep: 1µA
    • Active: 2.3mA
  • Operating Temperature: –40 - 125°C
  • Integrated temperature compensation/measurement
    • Range: -40 - 170°C
  • Configurable data rate

SparkFun Linear 3D Hall-Effect Sensor - TMAG5273 (Qwiic) Product Help and Resources

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels


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