3Pcs RobotDyn AC Light Dimmer Module For PWM Controller 1 Channel 3.3V/5V Logic AC 50hz 60hz 220V 110V

2CH Version Product ID 1565886Feature 1 The AC Dimmer is designed to control the alternating current voltage which can transfer current up to 600V 16А In most cases Dimmer is used to turn power ON OFF for lamps or heating elements it can also be used in fans pumps air cleaners e t c 2 Lately Dimmer has become an often used decision for the smart home systems For example when you need to smoothly change the light brightness The lamp is slowly turning ON or OFF creating a comfortable atmosphere Dimmer works most effective with filament lamps Its less stable with low brightness dimmable LED lamps but with moderate and high brightness it will perform a solid job Note that luminescent lamps gas discharge lamps do not support dimming 3 Power part of dimmer is isolated from the control part to exclude the possibility of high current disruption to a microcontroller 4 The logical level is tolerant to 5V and 3 3V therefore it can be connected to the microcontroller with 5V and 3 3V level logic 5 In dimmer is controlled with RBDdimmer h library which uses external interrupts and process time interrupts It simplifies the code writing and gives more processing time for main code Which is why you can control multiple Dimmers from one microcontroller 6 Dimmer is connected tocontrollers via two digital pins First Zero to control the passing of Phase Null of AC which is used to initiate the interrupt signal Second DIM PSM to control dim current 7 Note