Yl105 Datasheet Better -

Without these, you cannot guarantee detection range or reliability.

The YL-105 board simplifies the complex wiring of the nRF24L01. Pin Number Description Input power (5V) GND CSN SPI Slave Select Active Low CE Chip Enable High to TX/RX MOSI SPI Data Input SPI Master Out Slave In SCK MISO SPI Data Output SPI Master In Slave Out IRQ Active Low 4. How to Use the YL-105 with Arduino yl105 datasheet better

The built‑in AMS1117 linear regulator provides a clean, stable 3.3 V supply. The 800 mA current rating is far more than an Arduino’s internal 3.3 V regulator can offer, so the radio module works reliably even at maximum power. Without these, you cannot guarantee detection range or

) directly to a standard 5V power rail from a microcontroller will instantly destroy the transceiver. How to Use the YL-105 with Arduino The

Desolder the LM393 chip. Connect the sensor’s center pad directly to an analog pin (via a 1kΩ resistor for protection). The comparator’s hysteresis ruins precision.

According to manufacturer data, the YL-105 PIR alarm delivers: