Grab an Arduino, a magnet, and start building magnetic-responsive projects today. Disclaimer: The YL105 is an open-hardware-style module. Specifications vary by manufacturer. Always test your module before finalizing a design.
void loop() hallState = digitalRead(hallPin); if (hallState == LOW) // active low typical digitalWrite(ledPin, HIGH); Serial.println("Magnet detected"); else digitalWrite(ledPin, LOW); yl105 datasheet
Introduction In the world of embedded systems, robotics, and industrial automation, magnetic sensors play a critical role in non-contact switching, position sensing, and speed detection. Among the myriad of Hall effect sensors available, the YL105 stands out as a popular, reliable, and cost-effective component for hobbyists and professionals alike. However, finding a comprehensive, easy-to-understand datasheet for the YL105 can often be challenging. This article serves as an extended technical resource—a complete guide that consolidates everything you would expect from an official yl105 datasheet : pinouts, electrical characteristics, application circuits, and practical usage tips. Grab an Arduino, a magnet, and start building
delay(100);
Whether you are designing a brushless DC motor controller, a magnetic door lock sensor, or a tachometer for a DIY project, understanding the YL105 datasheet is your first step toward a successful implementation. The YL105 is a digital Hall effect sensor that detects the presence of a magnetic field and outputs a digital signal (HIGH or LOW) accordingly. It typically operates on the principle of the Hall Effect, where a voltage difference (Hall voltage) is generated across a current-carrying conductor when exposed to a perpendicular magnetic field. Always test your module before finalizing a design
| Pin Name | Function | |----------|----------| | VCC | Power supply (3.3V – 5V DC) | | GND | Ground (0V) | | DO | Digital output (HIGH when magnetic field detected, LOW when absent – or vice versa depending on comparator configuration) | | AO | Analog output (rare on basic YL105; some variants omit this) |
| Sensor | Type | Key Difference | |--------|------|----------------| | A3144 | Unipolar Hall | Very common, similar to YL105’s IC | | SS495A | Linear Hall | Analog output, measures field strength | | US5881 | Unipolar Hall | Lower power consumption | | KY-024 | Module with analog output | Includes both DO and AO | | TLE4905 | Unipolar Hall | Higher temperature range | The YL105 Hall effect sensor module is a versatile, beginner-friendly component for countless magnetic sensing tasks. While an official, unified yl105 datasheet may not exist as a single PDF from a major semiconductor manufacturer, the technical details provided in this article cover everything you need to integrate the YL105 into your projects.