Tindie

USB power друг

A small board allowing you to switch USB device's power on and off

Designed by CRImier, Ships from Latvia

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A small board allowing you to switch USB device's power on and off

What does this board do? Allows you to control power of a USB device connected - using a Raspberry Pi GPIO, a switch/pushbutton or a simple jumper Allows you to momentarily disconnect power from y...

What does this board do?

Allows you to control power of a USB device connected - using a Raspberry Pi GPIO, a switch/pushbutton or a simple jumper
Allows you to momentarily disconnect power from your USB device using just a pushbutton (avoiding plugging/unplugging the cable)
This board also works as a MicroUSB-female USB adapter, allowing you to turn any MicroUSB cable into a USB extension cable in a pinch
Also works as a pin-header-to-USB-power adapter in a pinch
Allows you to disconnect USB data lines from the MicroUSB port (for now, by cutting two solder jumpers)
Has helpful green LEDs on input power, output power and control pin, too!

Technical characteristics:

Uses a FDN302P (IRLML6401 equivalent, but with 2.5V Vgs) FET controlled by a BC847 transistor to switch the power on and off (active low)
There are footprints for both pullup and pulldown resistors on the BC847 gate, allowing you to set power to either default-on or default-off
Prototyping-friendly 4-pin header, with all important points (VIN/CTRL/GND/VOUT) broken out