know how many watts a USB device is consuming
32827
How to monitor USB power consumption?
29374
How to detect if a USB port is 3.0 or 2.0?
37990
How to measure the quality of a USB charging cable?
101263
Measuring an Arduino's power source voltage using Analog In
28029
Check if display is powered on in Linux
139489
Make a computer act as a virtual USB device for other equipments
17034
Calculating mAh needed to run a device
135012
How to disable a USB port in Windows (XP) and make it available only for charging?
102142
How to get information about android battery usage by application
140007
List the hardware info and status in my computer
84329
How to tell which device the USB drive is assigned as?
138439
In Python, how can I detect whether the computer is on battery power?
70251
Can I charge a computer through its USB port?
133501
How do I find out whether my system has USB 3.0 ports?
101383
How do I know the device path to an USB-stick?
72715
Calculating the peak current of my boost converter
80778
How much power can be drawn from the lightning connector by a external device?