Yl105 Datasheet Better | !!top!!

by resolving the notorious power instability and voltage mismatch issues common to 5V microcontrollers like the Arduino Uno . Building wireless networks with the popular 2.4GHz nRF24L01+ transceiver module

: The RF transceiver operates exclusively between 1.9V and 3.6V DC . Connecting it directly to a 5V power rail will destroy the main IC instantly. yl105 datasheet better

Stop fiddling with external pull-ups and faulty libraries. Download the original YL105 datasheet, follow the timing diagrams above, and build humidity logging that just works. by resolving the notorious power instability and voltage

VCC → IR LED (with current limiting resistor) → GND VCC → Phototransistor collector → Resistor divider → LM393 inverting input Potentiometer → LM393 non-inverting input (reference voltage) LM393 output → DO pin & output LED Stop fiddling with external pull-ups and faulty libraries

The adapter expects a maximum input voltage of 12 V , but 5 V is recommended . Do not feed more than 12 V into the VCC pin, and never connect the nRF24L01’s 3.3 V pins directly to a 5 V source—that will destroy the radio module.

: Standard microcontrollers (like some 8051 or Arduino variants) often run on 5V, which can damage the nRF24L01 module. The YL-105 provides a simple, 8-pin plug-and-play socket to handle this conversion safely. Technical Specifications Input Voltage Output Voltage 1.9V ~ 3.6V DC (Standard 3.3V) Current Draw Compatibility 8-pin nRF24L01+ Wireless Modules Form Factor Compact breakout board with standard header pins Potential Alternate: L105 Aluminum Alloy

void setup() // Initialize hardware serial for monitoring Serial.begin(9600);