User Manual

When people touched doorlock Main board wakes D_1 to transmit BLE signal to the front.
At the same time D_1 send a signal to D_2 to transmit a different signal to disturb
smartphone to get normal BLE signal at the back side of DDL.
D_1 is just normal BLE module. D_2 is just making a RF signal when D_1 transmit any RF
signal.
In the data point of view, D_1 just transfer the date from smart phone to DDL Main Board
only after D_1 and Smartphone have made BLE connection.