Yl-105 Datasheet ✓ ❲Best❳

| Condition | Digital Output (DO) | |-----------|---------------------| | No magnetic field (or very weak) | Logic HIGH (VCC) | | Strong magnetic field (south pole) | Logic LOW (0V) |

This is the most common configuration – active low. Check your specific module for an output LED indicator; when the LED lights up, the output is active (usually LOW).

Given YL numbering, the YL-105 is probably a comparator-based sensor module (like a threshold detector). The "helpful paper" would be:

To get an actual datasheet PDF:
Go to alldatasheet.com or datasheetcatalog.com and search for the main IC part number (LM393, etc.). That is the authoritative document. yl-105 datasheet

If you can share a photo or the IC marking, I will give you the exact pinout and a sample circuit.

Read the AO pin with an ADC. The analog voltage will change as a magnet moves parallel to the sensor face. Calibrate the ADC reading to distance. This is not a high-precision linear encoder, but it works for coarse position feedback (e.g., throttle position, linear actuator feedback).

The module has an onboard potentiometer (blue box). This adjusts the reference voltage for the LM393 comparator. To get an actual datasheet PDF: Go to alldatasheet

Common calibration: Place the sensor 5mm above a white surface. Turn the potentiometer until the onboard LED just turns off. Now, the module will trigger reliably when seeing white vs. black.

If you’ve been searching for “YL-105 datasheet” , you’re likely working on a robotics or electronics project involving obstacle avoidance or line sensing. The YL-105 is a popular, low-cost infrared (IR) sensor module often sold alongside Arduino starter kits.

However, there’s a common frustration: the YL-105 is a clone of the more widely documented TCRT5000 sensor module. You will rarely find an official datasheet labeled “YL-105,” but don’t worry—by understanding the hardware, you can use the TCRT5000 datasheet as your go-to reference. Read the AO pin with an ADC

Here is everything you need to know, pulled from the technical specifications of its underlying components.