[better] — Yl105 Datasheet

The datasheet details for the YL-105 adapter board usually include: Input Voltage: 5V DC (can be powered directly from an Arduino's 5V pin). On-board Regulator:

For applications requiring high-speed switching (e.g., dimming, pulse control), the relay’s mechanical nature limits operation. Refer to these timing specs: yl105 datasheet

: Meets stringent safety standards (UL VW-1 and CSA OFT), making it ideal for fire-sensitive applications. The datasheet details for the YL-105 adapter board

| Pin Number | Pin Name | Description | | :--- | :--- | :--- | | | GND | Ground (Power Supply Negative) | | 2 | VCC | Power Supply (1.9V – 3.6V) | | 3 | CSN | SPI Chip Select (Active Low) | | 4 | SCK | SPI Clock Input | | 5 | MOSI | SPI Data Input (Master Out Slave In) | | 6 | MISO | SPI Data Output (Master In Slave Out) | | 7 | GIO1 | General Purpose I/O / Interrupt Pin 1 | | 8 | GIO2 | General Purpose I/O / Interrupt Pin 2 | | Pin Number | Pin Name | Description