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Summary of Contents for UUGear Ace4U
- Page 1 Ace4U Cable-Free 4-Port USB Hub for Raspberry Pi A+/3A+ User Manual (revision 1.00) Copyright © 2019 UUGear s.r.o. All rights reserved.
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Page 2: Table Of Contents
Usage Guide ...................... 6 Connect Power Supply to the XH2.54 connector ......... 9 Connect Power Supply to Raspberry Pi ............9 Connect Ace4U to Other Models of Raspberry Pi ........9 Troubleshooting: USB Hub Not Recognized ............11 Acrylic Case ..................... 12 Integrates with Witty Pi 2 .................. -
Page 3: Product Overview
How does it work? The Raspberry Pi A+ and 3A+ has the same USB port location and the same layout of its testing pads on the back. The detachable 4 pogo pins on Ace4U board will connect the VCC, GND, USB D+ and USB D- testing pads at the bottom of of Raspberry Pi A+/3A+, so you don’t need any USB cable to make it work. -
Page 4: White Led As Activity Indicator For Usb Port
How does it look like? Please see the picture below: 1) Micro USB port for external power supply 2) XH2.54 connector for external power supply 3) Orange LED as power indicator 4) Upstream micro USB port (USB Input) 5) Pogo pin holders for VCC, D-, D+ and GND 6) Downstream (Output) USB port 1 7) White LED as activity indicator for USB port 1 8) White LED as activity indicator for USB port 2... -
Page 5: Package Content
Package Content Each package of this USB hub contains: Ace4U board x 1 Plastic male-female standoff x 4 M2.5 screw x 4 M2.5 nut x 4 Pogo pin x 4... -
Page 6: Specifications
Specifications 65mm x 56mm x 9mm Dimension: Weight 20g (net weight without any accessory) USB Specification Revision 2.0 and 1.1 compatibility Standards Single Transaction Translator (STT) USB v1.1: 12 Mbps Data Speed USB v2.0: 480 Mbps Upstream: 1 (micro-USB or via pogo pins) USB Ports Downstream: 4 Power: 1 (orange) -
Page 7: Powering Mode
Raspberry Pi, or supply power to Raspberry Pi, and work in self-power mode. If you use a USB - micro USB cable to connect Ace4U USB hub to other models of Raspberry Pi, and you connect power supply to the USB hub (via the power micro USB port or the white JST XH2.54 2-pin connector on board), then it is still working in... -
Page 8: Usage Guide
Usage Guide Before attaching Ace4U USB hub to Raspberry Pi A+ or 3A+, please make sure the USB testing pads on Raspberry Pi are not covered by flux. In case they are, use a cotton bud to clean their surface with some ethyl alcohol. Or you can gently scratch their surface with tweezers. - Page 9 Place Raspberry Pi A+ or 3A+ on top of Ace4U board. Thanks to the 4 standoffs, the pogo pins in place will contact to the testing pads on Raspberry Pi accordingly. Use the 4 plastic nuts to firmly mount Raspberry Pi on top of Ace4U board. You may use tweezers to help fastening the nuts.
- Page 10 Remarks: please do not plug any USB device to the only USB port on Raspberry Pi A+/3A+. Because that USB port has been occupied by Ace4U (as a USB hub). You to cover that USB port, so you won’t unintentionally...
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Page 11: Connect Power Supply To The Xh2.54 Connector
Raspberry Pi to Ace4U board). Connect Ace4U to Other Models of Raspberry Pi If you want to connect Ace4U USB hub to other Raspberry Pi models, you will need a USB - micro USB cable (not included in the package). - Page 12 In the picture, Ace4U USB hub is powered by the USB bus on Raspberry Pi. This will limit the output current to 500mA for all USB ports on the hub. If you also connect an alternative power supply to Ace4U USB hub (via the power micro USB port or XH2.54 connector on board, as shown in figure below), the USB...
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Page 13: Troubleshooting: Usb Hub Not Recognized
After you connect Ace4U to Raspberry Pi A+/3A+ and have power supply connected, the orange LED should light up. If you connect USB device to the USB port on Ace4U, the white LED should light up accordingly. If you type “lsusb” command in the console,... -
Page 14: Acrylic Case
Acrylic Case If you want to put Ace4U and Raspberry Pi A+/3A+ into a case, you can find Acrylic case here. -
Page 15: Integrates With Witty Pi 2
Integrates with Witty Pi 2 Witty Pi 2 is another UUGear product, which is a small extension board that can add realtime clock and power management to Raspberry Pi. It can be mounted above Raspberry Pi by connecting to the 40-pin GPIO header. - Page 16 In order to firmly mount Witty Pi 2 on top of Raspberry Pi + Ace4U, you need to replace the plastic nuts with the copper standoffs come with Witty Pi 2. After finishing the replacement you will get:...
- Page 17 Remarks: Witty Pi 2 needs to control the power, so the power supply should be connected to Witty Pi 2 (as shown in figure below). Witty Pi 2 will power Raspberry Pi A+/3A+, and Ace4U will get power via the pogo pins.
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Page 18: Revision History
Revision History Revision Date Description 1.00 2019.02.19 Initial revision...
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