We have released our 0.9C version for Universal Box app, and as key notes regarding this release are the addition of UART commands to control the power pin from RJ45 connector. See picture for details.
1 – Power ( Off, 4V, 5V )
2 – Tx ( Transmit to device / phone )
3 – Rx ( Receive from device / phone )
7 – Gnd
*HDB-SET-POWER(0)* – Disables power ( either 4V or 5V )
*HDB-SET-POWER(4)* – Enable power and set it to 4V
*HDB-SET-POWER(5)* – Enable power and set it to 5V