Sensor-Hall

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mCookie-Hall

Product number of mCookie Sensor—Hall:MSDS41

mCookie Sensor-Hall is a linear hall sensor, which can detect the strength and polarity of the magnetic field.

Sensor hall is a magnetic field sensor based on Hall effect.

Hall effect is a kind of magnetoelectric effect, which is found by Hall(A.H.Hall)on 1879 when he was studying the conduction mechanism of the metal.



Description of Sensor Pins

Sensor backpin.png

Hall Sensor
General Pin Out Sensor / Trinket's Pin Out
PIN1 (GND) GND
PIN2 (VCC) VCC
PIN3 (SIGNAL-A) Analog Input
PIN4 (SIGNAL-B) Not Connected
  • General Pin Out is the standard pin out of a Sensor / Trinket connector.
  • Sensor / Trinket's Pin Out is this specific Sensor / Trinket's wiring in relation to the General Pin Out.
  • SIGNAL-A / SIGNAL-B are signals that could be digital input, digital output, analog input or analog output. Or special signals such as serial communication (SoftwareSerial, IIC (I2C), etc) or other special signals.
  • Not Connected refers to the Pin not being used for this particular Sensor / Trinket.
  • Read more about the hub module.

Features

  • With high detection sensitivity, and stability.
  • A linear hall sensor with a polarity.
  • With small size which is easy to install.

Specification

  • Sensor voltage
    • 3.3V~5V working voltage
  • Size of the sensor
    • Size of the board: 23.5mm*13mm;
    • 1.27mm-spacing 4Pin interface connected with sensorhub;
    • Sensor CAD drawings: File:Sensor CAD.zip.
  • Function description
    • This sensor is 10-bit ADC(0~1023), and the static value that the pin IO1 gets is 512;
    • The strength of the magnetism changes according to south and north poles;
      • If get close to the hall circuit from the back with the N pole, the output voltage will reduce, and the analog value will reduce(512~0), too;
      • If get close with S pole from the back, the output voltage will increase and the analog input value will increase(512~1023), too;
      • If from the front, the output state is opposite to from the back.


  • Microduino-Hall xianxingtu.JPG


  • Connection
    • This sensor can be connected with the following interfaces of the core: A0~A7.

Documents

Development

Program Download

Programming

  • Follow the Software Getting Started Guide.
  • Select the Board, Processor and Port.
  • Click [File]->[Open], browse to the project program address, and click "Microduino_Hall_Test.ino" to open the program.
  • After confirming all these items are correct, click "→" to download the program to the development board.

Hardware Setup

  • Referring to the following picture, connect the Sensor-Hall to the analog interface A0 of Microduino-Sensorhub.


Microduino-sensorhub hall.JPG


Effect Observation

  • After the download, open the serial port monitor.
  • Get close to the hall circuit from the back with S pole. The output voltage of both ends of the hall sensor is during 2.5V~5V, and the analog value it returns is during 512~1023.
  • Get close to the hall circuit from the back with the N pole. The output voltage of both ends of the hall sensor is during 2.5V~0V, and the analog value it returns is during 512~0.
  • If get close to the circuit from the front, the output state is opposite to from the back.

Application

  • It is suitable for the detection of magnetic field strength.

Projects

Purchase

History

Gallery

Microduino-Hall Front
Microduino-Hall Back
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