Introduction
Hardware Extension Bay Overview
Summary
Loomo, a.k.a Segway Robot, provides a hardware extension bay that allows connection to additional accessories, providing a whole new magnitude of possibilities.
The extension bay contains a standard USB 2.0 host, and a 24 volt power supply with 1A limit.
Hardware Specifications
We provide a standard USB Interface along with an additional power supply.
See below picture for the detailed design of the hardware extension bay.
( The detailed design of the hardware extension bay )
Pogo Connector Pin Design:
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | P24V | Power | DC power supply: 24V/1A |
| 2 | GND | GND | DC Ground |
| 3 | P5V | Power | DC power supply: 5V/500mA |
| 4 | USB_DATA- | USB2.0 | USB2.0 Data N |
| 5 | USB_DATA+ | USB2.0 | USB2.0 Data P |
| 6 | GND | GND | DC Ground |
| 7 | Detect | Input | Connect it to GND to enable power supply |
Software Specifications
The extension bay is a USB 2.0 host. And the USB driver is based on Android 5.1.
The extension bay USB supports hot plug, When the USB device, the client, is plugged in, the system will generate a corresponding device node.
Trusted applications will have the right to read and write this device node.
All the drivers of USB device chipsets listed below are supported:
| MOSCHIP USB-ethernet driver | ark3116 |
| asix | ax88179_178a |
| belkin_sa | catc |
| cdc_acm | cdc_eem |
| cdc_ether | cdc_ncm |
| cdc_subset | ch341 |
| cp210x | digi_acceleport |
| dm9601 | f81232 |
| ftdi_sio | ipheth |
| kaweth | keyspan_pda |
| mct_u232 | mos7720 |
| mos7840 | net1080 |
| option | oti6858 |
| pegasus | pl2303 |
| rtl8150 | sierra_net |
| smsc75xx | smsc95xx |
| snd-usb-audio | spcp8x5 |
| ssu100 | ti_usb_3410_5052 |
| ums-realtek | usb-storage |
| usb_ehset_test | usbfs |
| usbhid | usbserial |
| usbserial_generic | uvcvideo |
| whiteheat | zaurus |
FAQ
You can verify your client in a standard Android 5.1 device to see if it is supported as a USB host.
You should ask our FAE to add the policy for your device in next release.
One 7 Pin Pogo connector comes with the Developer Edition Loomo. If you need additional ones, check our website ( www.segwayrobotics.com ) to get information about how to purchase the connector when it's available.