1. Einleitung
The WINGONEER KY-003 is a Hall Effect magnetic sensor module designed for detecting magnetic fields. It utilizes the Hall effect principle to provide a digital output signal, indicating the presence or absence of a magnetic field. This module is commonly used in various electronic projects, including smart cars, robotics, and automation systems, and is compatible with popular microcontrollers like Arduino, PIC, and AVR.
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your KY-003 module to ensure optimal performance and safe usage.
2. Produktüberschreitungview
The KY-003 module integrates a Hall effect sensor with necessary supporting components on a small PCB. It features three pins for connection: VCC (power supply), GND (ground), and Signal (digital output).

Image 2.1: WINGONEER KY-003 Hall Effect Magnetic Sensor Module. This image shows the compact design of the KY-003 module with its three pins (S, +, -) clearly visible, along with the Hall sensor component.
Hauptmerkmale:
- Non-contact switching based on Hall effect.
- Digital output signal.
- Integrated circuit technology for magnetic sensitivity.
- Open collector output stage.
- Bandtage regulator, Hall voltage generator, differential amplifier, Schmitt trigger, temperature compensation, and magnetic sensitive sensor circuit.
3. Spezifikationen
| Spezifikation | Wert |
|---|---|
| Marke | WINGONEER |
| Modellnummer | KY-003 (Manufacturer Model: JT0701) |
| Maximales Versorgungsvolumentage | 5 Volt (DC) |
| Ausgabetyp | Digitales |
| Montagetyp | Einfache Montage |
| Produktverwendung | Electronic Circuits, Smart Cars |
| UPC | 723466639088 |
4. Einrichtung
Proper wiring is crucial for the correct functioning of the KY-003 module. Follow the steps below for typical microcontroller connections.
Pinbelegung:
- S (Signal): Digital output pin. Connects to a digital input pin on your microcontroller.
- + (VCC): Power supply pin. Connects to 5V on your microcontroller.
- - (GND): Ground pin. Connects to GND on your microcontroller.
4.1. Wiring with Arduino
Connect the KY-003 module to an Arduino board as follows:
- KY-003 'S' pin to Arduino Digital Pin 2
- KY-003 '+' pin to Arduino 5V
- KY-003 '-' pin to Arduino GND

Image 4.1: Wiring diagram for connecting the KY-003 Hall Effect Magnetic Sensor Module to an Arduino board. The image illustrates the connections from the sensor's S, +, and - pins to the Arduino's digital pin 2, 5V, and GND respectively.
4.2. Wiring with Raspberry Pi
Connect the KY-003 module to a Raspberry Pi board as follows:
- KY-003 'S' pin to Raspberry Pi GPIO Pin (e.g., GPIO 17)
- KY-003 '+' pin to Raspberry Pi 5V pin
- KY-003 '-' pin to Raspberry Pi GND pin

Image 4.2: Wiring diagram for connecting the KY-003 Hall Effect Magnetic Sensor Module to a Raspberry Pi board. The image shows the sensor's S, +, and - pins connected to a Raspberry Pi's GPIO, 5V, and GND pins respectively.
5. Bedienungsanleitung
The KY-003 module operates by detecting changes in a magnetic field. When a magnetic field of sufficient strength and appropriate polarity is brought near the sensor, its digital output pin will change state.
Grundlegende Bedienung:
- Einschalten: Ensure the module is correctly wired and powered with 5V DC.
- Magnetfelderkennung: Bring a magnet close to the Hall effect sensor component on the module.
- Ausgangssignal: The digital output pin will typically be HIGH (5V) when no magnetic field is detected, and switch to LOW (0V) when a magnetic field is present, or vice-versa, depending on the specific Hall sensor IC and its configuration. Refer to the datasheet of the specific Hall sensor IC (e.g., 44E, A3144) for exact behavior.
- Microcontroller Reading: Your microcontroller can read the state of the digital output pin to determine if a magnetic field is detected.
Zum Beispielample, in an Arduino sketch, you would use `digitalRead()` on the connected pin to get the sensor's state.
6. Wartung
The KY-003 Hall Effect Magnetic Sensor Module is a robust electronic component that requires minimal maintenance. Adhering to these guidelines will help ensure its longevity and reliable performance:
- Trocken halten: Vermeiden Sie es, das Modul Feuchtigkeit oder Flüssigkeiten auszusetzen, da dies zu Kurzschlüssen und Beschädigungen führen kann.
- Sauberkeit: Keep the module free from dust and debris. If cleaning is necessary, use a soft, dry brush or compressed air. Do not use liquid cleaners.
- Vorsichtig handhaben: Avoid applying excessive force or bending the pins, which can lead to physical damage.
- Lagerung: Um Schäden durch elektrostatische Entladung (ESD) zu vermeiden, lagern Sie das Modul bei Nichtgebrauch in einer trockenen, antistatischen Umgebung.
- Stromversorgung: Always use a stable 5V DC power supply within the specified voltage range to prevent damage from overvoltage oder undervoltage.
7. Fehlerbehebung
If you encounter issues with your KY-003 module, consider the following troubleshooting steps:
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| No output change when magnet is near | Incorrect wiring (VCC, GND, Signal) Unzureichende Magnetfeldstärke Incorrect magnet polarity Faulty module | Überprüfen Sie alle Verbindungen. Use a stronger magnet or bring it closer. Try reversing the magnet's polarity. Test with another module if available. |
| Modul schaltet sich nicht ein | Falscher Stromanschluss Stromversorgungsproblem | Verify VCC and GND connections. Check if the power supply is providing 5V DC. |
| Erratic or unstable output | Elektrisches Rauschen Lose Verbindungen | Ensure proper grounding. Keep signal wires away from noisy components. Sichern Sie alle Verbindungen. |
8. Sicherheitshinweise
When working with electronic components, always observe basic safety precautions:
- Ausschalten: Vor dem Herstellen oder Ändern von Kabelverbindungen muss immer die Stromzufuhr unterbrochen werden.
- Bandtage Grenzen: Do not exceed the maximum specified supply voltage von 5V DC.
- ESD-Schutz: Handle electronic components with care to prevent electrostatic discharge (ESD) damage. Use anti-static mats or wrist straps if available.
- Kurzschlüsse: Ensure that no bare wires or conductive materials can accidentally short-circuit the module or your microcontroller.
9. Garantie und Support
For warranty information or technical support regarding your WINGONEER KY-003 Hall Effect Magnetic Sensor Module, please refer to the product packaging or contact your retailer. Keep your proof of purchase for any warranty claims.