ScoutMakes DRV5032 Hall Sensor

by Lalindra Jayatilleke

published September 23, 2024, last edited September 23, 2024

posted in Sensors/ Proximity Breakout Boards STEMMA

Save Download

Beginner

Project guide

Overview

This is a breakout for the Texas Instruments DRV5032 Digital Magnetic Hall Effect Sensor. It is the perfect way to add proximity sensing to your project. The sensor has a digital output that indicates when the magnetic flux density threshold has been crossed. The device integrates a Hall effect element, analog signal conditioning, and a low-frequency oscillator that enables ultra-low average power consumption. By operating from a 1.65-V to 5.5-V supply, the device periodically measures magnetic flux density, updates the output, and enters a low-power sleep state.

The breakout comes with a 3-pin header for breadboard use. This board has a simple plug-and-play JST PH (2mm pitch) 3-pin input connector for solderless use. This cable is sold separately and is not needed to use the board.

Open Source Hardware Association Certified US002671

Page last edited September 22, 2024

Text editor powered by tinymce.

Pinouts

The breakout can be used via the 3-pin JST-PH connector, or the 3 pin breadboard header.

JST-PH Connector

On the front of the board is the JST-PH connector with the three pins for providing power and a signal from the DRV5032 Digital Hall Sensor.

GND - The left input on the JST-PH connector is common ground shared between the two CAN connections.
VIN - It is connected to the middle pin on the JST-PH connector. This has to be a DC voltage 1.65V to 5.5V.
OUT - the DRV5032 output signal pin changes between HIGH and LOW depending on the presence of a magnetic field. It is connected to the right input on the JST-PH connector.

Page last edited September 22, 2024

Text editor powered by tinymce.

CircuitPython

The ScoutMakes DRV5032 Hall Sensor can be easily used with CircuitPython. Since the signal pin from the breakout board drives HIGH or LOW based on the presence of a magnetic field, it can be easily connected to IO pins to a QT Py, for example, or other microcontroller.

Download File

Copy Code

"""CircuitPython ScoutMakes DRV5032 Digital Hall Sensor example"""
import time
import board
from digitalio import DigitalInOut, Direction, Pull
switch = DigitalInOut(board.A0)
switch.direction = Direction.INPUT
switch.pull = Pull.UP

while True:
    # We could also do "led.value = not switch.value"!
    if switch.value:
        print ("1")
    else:
        print ("0")
    time.sleep(0.1)  # debounce delay

"""CircuitPython ScoutMakes DRV5032 Digital Hall Sensor example"""
import time
import board
from digitalio import DigitalInOut, Direction, Pull
switch = DigitalInOut(board.A0)
switch.direction = Direction.INPUT
switch.pull = Pull.UP

while True:
    # We could also do "led.value = not switch.value"!
    if switch.value:
        print ("1")
    else:
        print ("0")
    time.sleep(0.1)  # debounce delay