Yl105 Datasheet Jun 2026

: The SPI Select pin that initiates SPI communication.

The structural blueprint of the YL-105 consists of two parallel connection blocks:

: The nRF24L01 module requires a strict 1.9V to 3.6V supply. Standard Arduino 3.3V pins often lack sufficient current stability, leading to "brownouts" and dropped connections. The YL-105 allows you to use the more robust 5V rail. yl105 datasheet

Connect to Arduino Digital Pin 11 (Hardware SPI MOSI).

SPI data output line from the radio module. : The SPI Select pin that initiates SPI communication

“Never ignore the fine print,” Aris said, tapping the familiar YL105 datasheet. “It’s not just a list of numbers. It’s the story of what can go wrong—and how to win.”

The 49E sensor has a sensitivity of typically to 2.5 mV/G . The datasheet usually specifies a useful range of ±600 Gauss to ±1000 Gauss . This is excellent for neodymium magnets (detection up to ~2-3 cm) and works reliably with ceramic magnets (~1 cm). The YL-105 allows you to use the more robust 5V rail

The critical engineering problem solved by the YL-105 is . Radio frequency transceivers are highly susceptible to voltage fluctuations. When an nRF24L01+ switches instantly from a low-power standby state to a peak transmission state (drawing upwards of 11.3mA to 13.5mA or much higher on PA/LNA variants), it creates instantaneous current demands.

Pass-through logic pin. Acts as the active-low SPI peripheral select pin. Pass-Through Signal Interface