The YL105 designation covers multiple components, primarily serving as a 5V-to-3.3V adapter board for nRF24L01+ modules, a PIR motion alarm, or a residual chlorine sensor, depending on the context. The widely used adapter board incorporates an AMS1117-3.3 regulator and features an 8-pin socket for seamless integration with 5V microcontrollers like Arduino. For technical specifications regarding the adapter board, visit Infrared Motion Sensor Alarm YL-105 Instruction Manual
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shifts states rapidly—moving from a low-power sleep mode to a —it demands immediate, clean current. The YL105 designation covers multiple components
~ 2800-2900 rpm (2 Pole) or ~ 1400-1450 rpm (4 Pole) Voltage: 220V/50Hz (or 110/220V dual voltage) Insulation Class: B or F (F offers better heat resistance) a PIR motion alarm