Sets the operational logic (High/Low trigger).
External resistor and capacitor connection to set duration. yl105 datasheet
Use an oscilloscope or multimeter to see if Pin 6 (Output) toggles when the input trigger is activated. If the input changes but the output stays dead, the IC is likely fried. Conclusion Sets the operational logic (High/Low trigger)
Extremely low (micro-ampere range in standby), making it ideal for energy-efficient "green" appliances. yl105 datasheet
The YL105 typically utilizes an 8-pin layout. While you should always verify with the specific manufacturer's marking, the standard configuration is often as follows: Positive power supply. GND: Ground reference.