SparkFun
SparkFun Mini Linear 3D Hall-Effect Sensor - TMAG5273 (Qwiic)
· MPN: SEN-23881
The SparkFun TMAG5273 Qwiic Mini Linear 3D Hall-Effect Sensor is a low-power, high-precision magnetic field sensor that can detect a magnetic field's presenc...
The SparkFun TMAG5273 Qwiic Mini 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 Mini 0.5in. 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, 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! This board version is also presented in our Qwiic Mini footprint for those who need more project space or weight to work with! 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.
Features:
Breakout Board
- Dimensions: 0.5in. x 1in. Mini-footprint
- Two Vertical Qwiic Connectors
- Two Mounting Holes:
- 4-40 screw compatible
- Six PTH Pins
-
3V3,GND,SCL,SDA,INT,Disable
-
- Power LED (Red)
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
- CRC Support
Documents:
- Schematic
- Eagle Files
- Board Dimensions
- Hookup Guide
- Datasheet (TMAG5273)
- Qwiic Info Page
- TMAG5273 Arduino Library
- GitHub Hardware Repo
Videos
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- LSB
- Least significant bit is the smallest step a digital converter can represent. In a DAC, it tells you the tiniest voltage change the output can make at a given resolution and output range.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- PTH
- Plated through-hole means the pin holes are metal-lined so solder connects the pad on both sides of the board. It is useful for connectors and headers that need a strong mechanical and electrical connection.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- Temperature compensation
- Temperature compensation means the sensor adjusts its readings to reduce errors caused by changes in water temperature. This matters for field monitoring because ponds, rivers, and tanks can vary in temperature throughout the day and across seasons.
Find this product in
Sensors & Input
Mini TMAG5273 Hall-Effect Sensor Schematic
Schematic · 149.0 KB · Click any page to view full size
Mini TMAG5273 Board Dimensions
Mechanical Drawings · 57.7 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 665.2 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
