Bluetooth Controller Phone Serial Relay LED Control Module
Feature:
Size: 28 x 23mmSupply voltage: 5VPort output: 5V high outputPort current: 15-2MA
Instruction: Click to open
Precautions:
1， The maximum current of port output is 15ma， be careful not to overload operation， you can consider adding transistor or other drive peripherals.2， The total current output of port can not exceed 60ma， that is， the control relay modules can not be more than four relays simultaneously turned on， you can consider adding transistors or other drive peripherals.3， The port can not directly access the power， port status query can only monitor small current high output and low output.4， INT interrupt pin， that is， module and mobile phone connection is successful， the pin output a high level， after disconnecting will output low level.
Package included:
1 x Bluetooth Controller