Yl105 Datasheet Better -

[ 5V MCU Pin ] ────────► [ YL-105 VCC Input ] ──► [ AMS1117 Reg ] ──► [ 3.3V Clean Power ] ──► [ nRF24L01 VCC ] [ 5V SPI Pins ] ────────► [ Direct Logic Pass-Through ] ────────────────────────────────────► [ 5V Tolerant Pins ] 1. Eliminating the 3.3V Power Deficit

In industrial water monitoring, "YL105" may also refer to the FST100-YL105 , a digital Residual Chlorine Sensor yl105 datasheet better

If you leave the sensor powered on, electrolysis will eventually destroy the nickel coating on the sensing pad (water + electricity + metal = corrosion). [ 5V MCU Pin ] ────────► [ YL-105

2x4 female socket header (for target RF module insertion) alongside an 8-pin single-row male terminal header for microcontrollers. The Two Engineering Problems the YL-105 Resolves yl105 datasheet better