Many sellers offer the YL105 as a that includes the bare Hall sensor chip, a comparator (like LM393), a potentiometer for threshold adjustment, an LED indicator, and pull-up resistors. The bare sensor's raw datasheet is often referenced simply as "YL105" or identified by its actual IC marking (e.g., OH137, AH3144, or similar).
The LM393 output is open collector. The datasheet usually notes this, meaning you can pull it up to a different voltage (e.g., 3.3V for a Raspberry Pi) than the module’s VCC (5V). This is a major plus for mixed-voltage systems. yl105 datasheet
int relayPin = 7;
The probe connects to the mainboard via a 3-pin interface (usually JST-XH or similar): Many sellers offer the YL105 as a that
Acts as a signal rectifier for sensors and small motor controllers. The datasheet usually notes this, meaning you can
Beyond mere voltage regulation, the YL-105 simplifies the physical architecture of a project. Its 8-pin socket provides a secure mechanical connection for the nRF24L01, while breaking out the SPI (Serial Peripheral Interface) pins into a more accessible format for jumper wires. This reduces the risk of wiring errors and short circuits that are common when using breadboards or loose connections.
When you plug the nRF24L01 module into the YL-105, the pins map as follows: Pin 1 (GND) →right arrow YL-105 GND Pin 2 (VCC) →right arrow YL-105 regulated Pin 3 (CE) →right arrow Pin 4 (CSN) →right arrow YL-105 CSN Pin 5 (SCK) →right arrow YL-105 SCK Pin 6 (MOSI) →right arrow YL-105 MOSI Pin 7 (MISO) →right arrow YL-105 MISO Pin 8 (IRQ) →right arrow YL-105 IRQ Wiring Guide: Connecting to an Arduino Uno Connecting the Go to product viewer dialog for this item.