Yl-105 Datasheet -

This module is a breakout board designed to simplify the use of the 8-pin nRF24L01 wireless transceiver with microcontrollers like Arduino.

Arduino and NRF24L01 : 6 Steps (with Pictures) - Instructables

Note: Pins 2 and 3 are often interchangeable. Some variations label them simply as two data outputs. You usually only need to connect one DATA pin to your microcontroller.

The most common YL-105 product among electronics enthusiasts is a small breakout board that simplifies connecting the 2.4GHz NRF24L01 transceiver module to microcontrollers like Arduino, ESP32, and Raspberry Pi.

If you can share a photo or the IC marking, I will give you the exact pinout and a sample circuit. yl-105 datasheet

Guide for Soil Moisture Sensor YL-69 or HL-69 with the Arduino

The YL-105 operates as an intermediate power conditioner. While it alters the supply voltage to safe thresholds, it passes the SPI data lines directly through to the microchip breakout header.

The 8-pin female socket directly replicates the nRF24L01+ layout. When the transceiver is inserted into the YL-105 socket, the regulated 3.3V power is delivered cleanly to the module's VCC pin. The SPI control lines ( SCK , MOSI , MISO , CSN , CE , IRQ ) pass directly through the adapter to the host MCU. Schematic and Circuit Architecture

Although the YL-105 includes a regulator, ensure your 5V power source is strong enough to handle the transmission current spikes of the NRF24L01. This module is a breakout board designed to

mySwitch.resetAvailable();

The YL-105 offers several benefits, including:

The board features a dual-row header layout on top to host the 8-pin nRF24L01+ module, while exposing a single row of breadboard-friendly header pins for easy MCU wiring.

Monitoring pressure in high-pressure hydraulic pumps and lines. You usually only need to connect one DATA

These pass directly through to the nRF24L01. Why Use It?

: The main advantage of this board is the onboard AMS1117 3.3V regulator, which allows you to power the wireless module using a 5V supply (e.g., from an Arduino's 5V pin) instead of the strict 3.3V required by the raw nRF24L01 chip.

| Problem | Likely Cause | Solution | |---------|--------------|----------| | Output always LOW | Threshold too low or magnet always present | Turn potentiometer clockwise to increase threshold | | Output always HIGH | Threshold too high or no power | Turn potentiometer counterclockwise, check VCC/GND | | Jittery output near switching point | No hysteresis | Add a 100k resistor from DO to non-inverting input, or use software debounce | | No response even with strong magnet | Wrong magnetic pole | Use south pole of magnet | | AO reads constant voltage | Hall sensor damaged or VCC unstable | Check VCC with oscilloscope; replace module if needed |