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Then you can mount Witty Pi 2 on top of it, and fix it with 4 copper screws.

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.

Содержание Ace4U

Страница 2: ...ons 4 Powering Mode 5 Self Power Mode 5 Bus Power Mode 5 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...

Страница 3: ...k 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 testin...

Страница 4: ...cro 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 9 Downstr...

Страница 5: ...3 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...

Страница 6: ...0 480 Mbps USB Ports Upstream 1 micro USB or via pogo pins Downstream 4 LED Indicators Power 1 orange Port Activity 4 white Power Mode On Raspberry Pi A 3A Self Power On Other Models Bus Power or Sel...

Страница 7: ...spberry Pi A or 3A it will take power from 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 Raspber...

Страница 8: ...n bud to clean their surface with some ethyl alcohol Or you can gently scratch their surface with tweezers The purpose is to expose the metal surface of testing pads so they could be contacted by pogo...

Страница 9: ...power supply to the Power micro USB port on Ace4U board as shown in photo below That way your Raspberry Pi will be back powered via the pogo pins and all USB devices connected to Ace4U will be powered...

Страница 10: ...gnized 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 may consider using a rubber plug to cover t...

Страница 11: ...the right You can find cable with male XH2 54 connector in our store e g this one and this one Remarks do not connect two different power supplies to the power micro USB port and the XH2 54 connector...

Страница 12: ...ect 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 hub will work in self power mode and it can output up to 2A...

Страница 13: ...rt on Ace4U the white LED should light up accordingly If you type lsusb command in the console you should see the 4 port USB hub get listed What to do if your Ace4U USB hub is not recognized If you ar...

Страница 14: ...12 Acrylic Case If you want to put Ace4U and Raspberry Pi A 3A into a case you can find our Acrylic case here...

Страница 15: ...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...

Страница 16: ...14 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...

Страница 17: ...it and fix it with 4 copper screws 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...

Страница 18: ...16 Revision History Revision Date Description 1 00 2019 02 19 Initial revision...