Yl105 Datasheet Better !!link!! -
// Initialize software serial for YL-105 mySerial.begin(9600);
The improved datasheet would dedicate an entire section to this nuance, complete with a truth table comparing "Isolated Mode" vs. "Non-Isolated Mode." Without this, the user is lulled into a false sense of safety when switching 220V loads.
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
for the nRF24L01 module, making it "plug-and-play" and resolving the difficulty of connecting to the module's non-breadboard-friendly pins. Current Capacity : Supports a maximum current of up to
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. // Initialize software serial for YL-105 mySerial
: Digital input pin used to transition the radio between standby, receive, and transmit modes.
Because the official documentation is sparse, you must create your own through calibration. Do not trust the voltage readings out of the box. Pin Number Description Input power (5V) GND CSN
+-----------------------------------+ | Microcontroller (5V) | | (e.g., Arduino, ESP32, STM32) | +-----------------+-----------------+ | [5V Power & SPI Logic Pins] | v +-----------------+-----------------+ | YL-105 Base Adapter Board | <-- Steps down 5V to 3.3V via AMS1117 +-----------------+-----------------+ | [Regulated 3.3V] | v +-----------------+-----------------+ | nRF24L01 Transceiver IC | <-- Receives clean power & data +-----------------------------------+
2.2kW (3HP) to 3kW (4HP) — significantly higher than the 1.5kW YL90S-4
: Precise input voltage ranges (e.g., 4.8V to 12V for the regulator) and output stability metrics.