The YL-105 regulator serves as an essential interface component because the nRF24L01+ modules are not 5V-tolerant on their power supply pins. Applying 5V directly to these modules can damage or destroy them. The YL-105 steps down the 5V supply to a clean 3.3V, ensuring reliable operation and protecting the sensitive RF module.
The YL-105 is a versatile device that finds applications in various fields, including:
| Module Code | Typical Function | |-------------|------------------| | YL-105 | Possibly (NTC thermistor + LM393) or laser receiver module ? (Unconfirmed) | | YL-69 | Soil moisture | | YL-83 | Rain/water drop | | YL-38 | Metal touch sensor |
This is a consumer-grade security device that uses a Passive Infrared (PIR) sensor to detect movement and sound an integrated siren.
📐 : Roughly 26mm x 19mm , making it ideal for breadboards or small enclosures. 🛡️ Version 2: YL-105 Infrared Motion Sensor Alarm yl-105 datasheet
The is a critical hardware accessory designed specifically for the popular nRF24L01+ 2.4GHz RF transceiver module . It solves the most common issues engineers and makers face when working with the transceiver: power supply instability and strict voltage constraints.
These pass directly through to the nRF24L01. Why Use It?
In consumer electronics, the YL-105 is a standalone . It is commonly used for home, garage, or shed security to detect human movement via heat signatures. Technical Data Detection Range : Up to 5 meters (approx. 16 feet). Detection Angle : 110° wide-angle field of view. Siren Volume : 105dB (high-pitched deterrent).
The YL-105 is very popular in the Arduino community due to its simple interfacing. Wiring Diagram YL-105 Pin Arduino Pin GND DO Pin 2 (Digital) AO A0 (Analog) Example Code (Analog) The YL-105 regulator serves as an essential interface
The chip hummed again.
. This module is a versatile, low-cost sensor often paired with an LM393 comparator chip to provide both digital and analog outputs. While frequently used as a soil moisture sensor (similar to its sibling, the ), the YL-105 is also found in configurations for rain detection liquid level sensing Technical Specifications
The YL-105 datasheet is a comprehensive document that provides detailed information about the component's specifications, features, and applications. The datasheet typically includes the following information:
The YL-105 wins for flexibility due to its analog output and adjustable trigger point. The YL-105 is a versatile device that finds
: Optional pin to mask or trigger hardware interrupts for data-ready or transmission-sent flags. ⚡ Circuit Diagram and Schematic Overview
: A key feature is its high-volume alarm, designed to be audible from a significant distance when motion is detected.
The designation typically refers to two distinct types of devices in the electronics world: a PIR Motion Sensor Alarm unit and a Transceiver Adapter Module used for wireless communication.