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LED Matrix Displays
Modulate Frequency: 38Khz
4 recommended for stability) with Bluetooth 4
Optimized the conversion protocol
Light Control Switch Relay (12V, with Photoresistor XH-M131) TMP36GT9 LED Matrix Displays12V Light Control Switch Relay module can be used for light detection and automatic triggers. The light control switch with photoresistor XH M131 can do a variety of brightness detection. It can automatically turn on at night, and automatically turn off during the day. Can be used when equipment needs to be automated. Physical Features: 4 M3 screw mounting holes Module output has three ports common (COM) normally open (CK), normally closed (CB) Board
