The symbol of low input power appears frequently on the screen

[vallettea]

I already enhance the output current via anthill/6sense#32 (comment) but it may not be enought.

[vallettea]

interesting:

pi@raspberrypi ~ $ sudo lsusb -v | grep -e 'MaxPower' -e 'Bus [0-9]'
Bus 001 Device 005: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
    MaxPower              500mA
Bus 001 Device 006: ID 12d1:1c05 Huawei Technologies Co., Ltd. E173s 3G broadband stick (modem on)
    MaxPower              500mA
Bus 001 Device 007: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
    MaxPower              100mA
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
    MaxPower                2mA
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
    MaxPower                2mA
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    MaxPower                0mA