Difference between revisions of "How to use an Android tablet as a Raspberry Pi console terminal and internet router"

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(Connect Raspberry to Android tablet)
 
(Additions)
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Use an Android tablet as console and internet router for your Raspberry Pi.
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Use a tethered [[Android tablet]] as [[console]] and [[internet router]] for your [[Raspberry Pi]].
This even works with a Raspberry Pi model 1A having no ethernet port...
 
  
 
==What you need==
 
==What you need==
*A [[Raspberry Pi]]
+
*Any Raspberry Pi — it even works with a Raspberry Pi model 1A having '''no''' ethernet port...
*A micro-USB power supply
+
*A [[micro-USB power supply]]
*A micro-USB cable
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*A [[micro-USB data cable]]
*An Android tablet (of smartphone if you insist)
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*An Android tablet (or smartphone if you insist)
*The ConnectBot App (available from Google Play)
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*The [[ConnectBot]] App (available from [[Google Play]])
  
 
==Advantages==
 
==Advantages==
*The Raspberry Pi uses very low power (no ethernet)
+
Very universal solution:
*Your Android tablet can be powered via the Raspberry Pi
+
*The Raspberry Pi uses very low power (no or inactive ethernet port)
*You have a virtual keyboard, mouse, and video display for your Raspberry Pi
+
*Your Android tablet can be powered via the Raspberry Pi USB port
*Both devices have easily access to internet
+
*You have a virtual keyboard, mouse, and video display (KVM) for your Raspberry Pi
 +
*Only 1 single Raspberry Pi USB port is required to deliver ethernet, and [[KVM access]]
 +
*Both devices can easily share an internet connection
 +
*The Raspberry Pi can have Wi-Fi or mobile network access through tablet tethering
 +
*You do not need any special hardware; except for a few standard micro-USB cables
 +
*It also works e.g. in a car using a 12V outlet
 +
*Only standard software needed
 +
*[[Autoconfiguration]] ([[plug and play]])
  
==Install ConnectBot==
+
==How to==
Install ConnectBot on your tablet which is an Android terminal emulator available from Google Play.
+
===Install ConnectBot===
It allows to SSH into the [[Raspberry Pi]].
+
Install ConnectBot on your tablet which is an [[Android terminal emulator]] available from Google Play.
 +
It allows to SSH into the Raspberry Pi.
  
==Configure the Raspberry Pi==
+
===Configure the Raspberry Pi===
Add the following lines:
+
Add the following lines into your network configuration:
 
  [[vi]] /etc/network/interfaces
 
  [[vi]] /etc/network/interfaces
 
  allow-hotplug usb0
 
  allow-hotplug usb0
 
  iface usb0 inet dhcp
 
  iface usb0 inet dhcp
  
==Connect your devices==
+
===Connect your devices===
 
Connect your Android Tablet to a Raspberry Pi USB port via a micro-USB cable.
 
Connect your Android Tablet to a Raspberry Pi USB port via a micro-USB cable.
 
Power your Raspberry Pi with a standard USB power supply.
 
Power your Raspberry Pi with a standard USB power supply.
 +
You can use any DC USB power supply.
  
==Enable Android USB tethering==
+
===Enable Android USB tethering===
 
Enable USB tethering on your Android tablet.
 
Enable USB tethering on your Android tablet.
 +
Settings → Connections → Tethering and Wi-Fi hotspot → USB tethering
  
Now the Raspberry gets an IP address via its USB0 port;
+
Now the Raspberry automatically gets an IP address via its USB0 port.
the Android tablet behaves like a NAT router.
+
The Android tablet behaves like a NAT router.
 
This should work both when your tablet is connected to Wi-Fi
 
This should work both when your tablet is connected to Wi-Fi
 
or to a mobile 3G/4G network.
 
or to a mobile 3G/4G network.
  
==Initiate an SSH login on the Raspberry Pi==
+
===Initiate an SSH login to the Raspberry Pi===
*Start the ConnectBot App
+
*Start the ConnectBot App on Android
 
*Login to the Raspberry Pi via SSH
 
*Login to the Raspberry Pi via SSH
 
The only problem is that you have to know the IP address of the Raspberry Pi;
 
The only problem is that you have to know the IP address of the Raspberry Pi;
at my device it was 192.168.42.159... but till now I do not have an easy way to see this...
+
it seems to be (always?) 192.168.42.159...
 +
 
 +
==Other ideas==
 +
*This could work as well with other USB devices having no built-in network connection...
 +
*You could run [[X Window System]] applications from your Raspberry Pi

Revision as of 02:52, 18 July 2015

Use a tethered Android tablet as console and internet router for your Raspberry Pi.

What you need

Advantages

Very universal solution:

  • The Raspberry Pi uses very low power (no or inactive ethernet port)
  • Your Android tablet can be powered via the Raspberry Pi USB port
  • You have a virtual keyboard, mouse, and video display (KVM) for your Raspberry Pi
  • Only 1 single Raspberry Pi USB port is required to deliver ethernet, and KVM access
  • Both devices can easily share an internet connection
  • The Raspberry Pi can have Wi-Fi or mobile network access through tablet tethering
  • You do not need any special hardware; except for a few standard micro-USB cables
  • It also works e.g. in a car using a 12V outlet
  • Only standard software needed
  • Autoconfiguration (plug and play)

How to

Install ConnectBot

Install ConnectBot on your tablet which is an Android terminal emulator available from Google Play. It allows to SSH into the Raspberry Pi.

Configure the Raspberry Pi

Add the following lines into your network configuration:

vi /etc/network/interfaces
allow-hotplug usb0
iface usb0 inet dhcp

Connect your devices

Connect your Android Tablet to a Raspberry Pi USB port via a micro-USB cable. Power your Raspberry Pi with a standard USB power supply. You can use any DC USB power supply.

Enable Android USB tethering

Enable USB tethering on your Android tablet.

Settings → Connections → Tethering and Wi-Fi hotspot → USB tethering

Now the Raspberry automatically gets an IP address via its USB0 port. The Android tablet behaves like a NAT router. This should work both when your tablet is connected to Wi-Fi or to a mobile 3G/4G network.

Initiate an SSH login to the Raspberry Pi

  • Start the ConnectBot App on Android
  • Login to the Raspberry Pi via SSH

The only problem is that you have to know the IP address of the Raspberry Pi; it seems to be (always?) 192.168.42.159...

Other ideas

  • This could work as well with other USB devices having no built-in network connection...
  • You could run X Window System applications from your Raspberry Pi