Hall sensor AH49E - Waveshare 9522

Index: WSR-04494 EAN: 5904422366230

Module with Hall sensor with analog and digital output. It works with voltage from 2.3 V to 5.3 V. It provides the detection of a magnetic field.

Hall sensor AH49E - Waveshare 9522
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Manufacturer: Waveshare
Compatibility: Arduino


Module with Hall sensor with analog and digital output. It works with voltage from 2.3 V to 5.3 V. It provides the detection of a magnetic field. The output voltage of the sensor is proportional to the value of the induction of the magnetic field.

The product is compatible with Arduino

The manufacturer has prepared a user guide along witha sample program for Arduino and STM32.



  • Supply voltage: from 2.3 V to 5.3 V
  • Analog and digital output signal
  • It is equipped with a Hall sensor AH49E (documentation)
  • Sensitivity: 1,6 mV/GS
  • The kit includes a cable with female ends
  • Module dimensions: 26 x 16 mmCzujnik Halla wraz z dołączonym przewodem

The included cable allows you to easily connect the device.



The device has a 4-pin connector. The output signal can lead, for example, to an input of the analogmodule of Arduino.

Pin Description
VCC Supply voltage: from 2.3 V to 5.3 V.
GND The ground of the system.
AOUT Analog output signal.
DOUT The digital output signal, the sensitivity is adjusted using the integrated potentiometer.


Test 4
Package width 7 cm
Package height 0.4 cm
Package depth 8 cm
Package weight 0.006 kg



Question: I want to build a circuit that responds to only one pole of the magnet. From what I understand, the AH49E sensor itself can detect which pole we are approaching the magnet with (for S it is the range of 0.5-1.0 supply voltage, and for N it is 0.0-0.5). However, I am not sure how the DOUT pin works. When we apply the S pole, do we get 5 V, and when there is no magnet or we apply the N pole we get 0 V?
Answer: In the absence of field detection, the sensor on the DOUT pin indicates 5 V, and when detected, about 0 V (~0.13 V).


Question: Can this sensor be used with Raspberry pi 4? I read that this model is dedicated to Arduino.
Answer: The module uses an analog signal for communication; unfortunately, the Raspberry Pi does not have a digital-to-analog converter.

Product reviews

Hall sensor AH49E - Waveshare 9522


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Karol 07.05.2023 Confirmed purchase Translated review
does its job.
Konstanty 07.04.2023 Confirmed purchase Translated review
Everything was OK!
diadex s. 25.09.2022 Confirmed purchase Translated review
Ryszard P. 19.10.2021 Confirmed purchase Translated review
The tile could be a little smaller.
Ing. J. 20.03.2023 Confirmed purchase
Mariusz 23.10.2022 Confirmed purchase
Mariusz 16.10.2022 Confirmed purchase

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