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Magnetic3D v1.3 $19.21US
2 - 6 : $18.25US ( save 5% )
7 - 19 : $17.29US ( save 10% )
20 + : $15.37US ( save 20% )
excl. sales tax

Check the Orient4D which also captures magnetic field strength !

This sensor will show you the mysteries of magnetism. Measures up to 8 Gauss (1 Gauss is 0.0001 Tesla, and if measuring in air, it is 1 Oersted) in three orthogonal directions. Comes with one those super strong neodymium magnets. A digital I2C sensor, that outputs cailbrated, high resolution, low-noise signals.

View, process and map the sensor data using our Magnetic3D software (see below). See this videoclip for a demo of Magnetic v2.1 !

Application information

Product Magnetic3D sensor
  1. Measure proximity of magnetic objects (or objects with a magnet attached).
  2. Measure RPM by attaching a magnet to the wheel.
  3. Count how many magnetic objects pass by the sensor.
  4. Attach to doors and detect when they are (almost) closed.
  5. Measure the strength of the earth's magnetic field.
  6. Combine it with a GForce3D, and make your own tilt-compensated compass, like the Orient4D (some math skills required !).
Manuals Using the sensor with the WiSystem enables you to use the sensor without being tethered to your computer or MIDI device.
  1. Make sure the sensor is plugged into the digitizer with the red wire connected to power. Reversing the plug may cause damage to the sensor.
  2. Requires a digitizer with digital (I2C) ports, eg. the WiDig, USB-microDig or Wi-microDig.
  3. The default I2C address is 30 (0x1E). Both I2C lines have 4.7 kOhm pull-up resistors.
  4. Our software enables you to use most features of this sensor. In EditorX, use the method parameter to set the sensor to output (method #0, 10, 20, 30, etc) the magnetic field strength for each of the 3 axes, or to output (method #1..9, 11..19, 21..29, 31..39, etc) the magnitude for the 3 axes combined where the method number scales the magnitude and if the method number is 2, 12, 22, 32, etc the full polar coordinate system values (ie. not only the magnitude but also the two angles) are output. Note that if the magnetic field strength exceeds the output range no value is output - choose a smaller scaling value in that case. This scaling only applies when operating in standalone mode. In host mode there is no scaling and the values are output as floats with 12-bit resolution.
  5. See the Magnetic3D function description in the firmware documentation for more details about the various methods available in host and standalone mode.
  6. For more technical specs, and to find out how to access the sensor data in detail, please consult this datasheet.
  7. Any magnetic materials or fields in the vicinity of the sensor may distort the sensor output.
  8. The earth's magnetic field has to be taken into account when measuring the field strength of magnets, since the strength of the earth's magnetic field at the earth's surface ranges from less than 30 microTeslas (0.3 gauss) in an area including most of South America and South Africa to over 60 microteslas (0.6 gauss) around the magnetic poles in northern Canada and south of Australia, and in part of Siberia.
  9. To extend the cable, use ExtendCableD-01 and/or ExtendCableD-10.
Software Our EditorX software allows you to configure the digitizer to process and map the sensor data of multiple sensors simultaneously.
  1. 18 Jul 2019: Magnetic3D v2.30 for MacOS and Windows from source code in Max. For multiple sensors or sensor outputs, run multiple instances of the application, each started in its own folder. Requires a digitizer with firmware v7.51 or higher, v7.33 or higher (but lower than v7.50), or v6.33 or higher (but lower than v7.00). Use together with Connect (MacOS / Windows).

Technical specifications

Product Magnetic3D sensor
Version 1.3 (September 2020)
Sensing parameter magnetic field strength
Sensing method Hall effect sensor
Range ±1 to ±8 Gauss (1 Gauss in air = 1 Oersted)
Resolution 1 mGauss
Non-linearity 0.1 % minimum
Hysteresis 0.025 % minimum
Bandwidth 160 Hz
Power supply 3 to 5.25 V DC, ? mA at 5 V DC
Operating temperature -30 to 85 °C (-22 to 185 °F)
Dimensions 15 x 26 x 4.0 (0.59 x 1.0 x 0.16 inch)
Mounting two 3.0 mm (0.12 inch) mounting holes spaced 9.0 mm (0.35 inch) apart
Cable 1.0 m (39 inch), shielded, red wire = power, black wire = ground, grey wire = I2C data (SDA), white wire = I2C clock (SCL), extendable at least 5 m (16 ft) with ExtendCableD-01 and 20 m (66 ft) with ExtendCableD-10
Connector male 1x4 plug with 4 pins in one row spaced 2.54 mm (0.100 inch)
Included magnet Neodymium magnet 10,800 Gauss, 6.4 mm (0.25 inch) diameter x 1.6 mm (0.063 inch) thick
Weight 11 g (0.39 oz), incl. cable and magnet

This page was updated on Monday 05 September 2022.
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