UUGear BIG7 User Manual Download Page 31 | Manualshive

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Summary of Contents for BIG7

Page 1: ...Copyright 2018 UUGear s r o All rights reserved BIG7 USB Hub Rev 2 for Raspberry Pi User Manual...

Page 2: ...6 Bus Power Mode 6 Self Power Mode 7 About MTT and STT 7 Usage Guide 8 Raspberry Pi Model A and B 8 Raspberry Pi B Raspberry Pi 2 and Raspberry Pi 3 B Model 11 Raspberry Pi A 17 Raspberry Pi Compute...

Page 3: ...y Pi 2 3 B model and Raspberry Pi Zero The board size of this USB hub is the same with Raspberry Pi B or Raspberry Pi 2 3 B model The old Raspberry Pi A and B model also have the same size except that...

Page 4: ...that sometimes you may need more than 4 USB ports As for the A B A Zero model and the compute module with development kit they have only one or two USB ports and will need a USB hub when you want to...

Page 5: ...tor 8 Upstream USB port 9 Power link jumper 10 Micro USB DC 5V power in 11 Red LED as power indicator 12 Alternative DC 5V power in 13 Pogo pin holder 5V 14 Pogo pin holder GND 15 Unpopulated 5x2 head...

Page 6: ...4 Package Content Each package of this USB hub contains 7 port USB hub board x 1 Cupped head pogo pin x 4 M2 5 x 10 6mm Copper Standoff x 4 M2 5 screws x 4 M2 5 nuts x 4...

Page 7: ...B v1 1 up to 12 Mbps USB v2 0 up to 480 Mbps USB Ports Upstream 1 mini USB Downstream 7 A type USB LED Indicators Power 1 red Port Activity 7 green or yellow Power Mode Bus Power Self Power Output Vol...

Page 8: ...mode or be powered by the power supply self power mode Bus power mode is simpler as it does not need to have external power supply but it has quite limited ability to power the devices on the USB hub...

Page 9: ...on Translators TTs A USB hub could have one TT for all downstream ports that have USB devices attached which is called Single Transaction Translator STT or the USB hub could have one TT for each downs...

Page 10: ...r Raspberry Pi and place the copper standoffs between the USB hub and Raspberry Pi align to the mounting holes and tighten the two ends of standoff with screw and nut Our suggestion is to put the scre...

Page 11: ...ub and your Raspberry Pi If you don t want the back powering you can disable it by putting the jumper on another side By doing so you will need two power supplies one for the USB hub and the other one...

Page 12: ...10...

Page 13: ...Raspberry Pi align to the 4 mounting holes By tightening the two ends of echo standoff with screw and nut the USB hub will be firmly mounted under your Raspberry Pi Our suggestion is to put the screw...

Page 14: ...12 There are 4 pogo pin holders on the USB hub board Gently put the pogo pin into the holder and press it to the bottom You can use the other end of the tweezers...

Page 15: ...ll contact to the D and D at the bottom of a USB port on Raspberry Pi Although the pogo pin has cupped head which is helpful for aligning to the joint point it is still a challenge to align 4 of them...

Page 16: ...pin GND in 40 pin header 4 Align the 5V pogo pin to the most right top pin 5V in 40 pin header 5 Use screws to fix the USB hub under Raspberry Pi Remarks don t let the pogo pin touches any other pin...

Page 17: ...Thanks to the 4 pogo pins now your Raspberry Pi has 10 usable USB ports without connecting any USB cable If you don t want to use the back powering just take out the pogo pins from their holders After...

Page 18: ...16...

Page 19: ...necessary to finish the connection Different than the B model Raspberry Pi A supports back powering via USB port So it is not necessary to use those pogo pins for back powering Just make sure to place...

Page 20: ...18...

Page 21: ...board and access the USB port on it Although it might not be a common situation if you need more than one USB port from the development board this USB hub can still help The mounting holes on the dev...

Page 22: ...20 If you don t want the back powering just put the jumper to the other side and connect two power supplies to USB hub and the development board accordingly...

Page 23: ...B port so you can just put the jumper to Power Link position and connect power supply to the USB hub To connect the upstream USB port to Raspberry Pi Zero s data USB port you will need a USB OTG adapt...

Page 24: ...22...

Page 25: ...port usage remotely The figure below shows the naming of each pin within this header You can make use of these pins to build your own USB port usage monitor Below is an example The green or yellow LE...

Page 26: ...he GND ground pin By cutting the power of USB peripherals they can not draw any current from the USB hub and doing so can save the power consumption This would be very useful if your project is runnin...

Page 27: ...t connected to the USB hub will be reset as well In order to get the device ID for the BIG7 USB hub you can run lsusb t command The result above shows that BIG7 USB hub is device 4 and it is connected...

Page 28: ...ock and power management to Raspberry Pi It can be mounted above Raspberry Pi by connecting to the 40 pin GPIO header Since this USB hub can be mounted under Raspberry Pi it has no conflict with Witty...

Page 29: ...place so they connect the 5V and GND between the USB hub and Raspberry Pi This is the same setup for back powering Raspberry Pi when power supply is connected to the USB hub However the purpose is dif...

Page 30: ...t For Raspberry Pi A B and compute module with development kit Witty Pi 2 could not be mounted on them because of the incompatible GPIO pin header Also they could not use the pogo pins to power the US...

Page 31: ...29...

Page 32: ...duct which accepts 5 26V DC input and output 5V to power your Raspberry Pi It can be mounted above Raspberry Pi by connecting to the 40 pin GPIO header Similar with Witty Pi 2 Zero2Go has no conflict...

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