USB_ModeSwitch is a fantastic utility that essentially does the heavy lifting of separating all these devices, so we can talk to the modem over USB serial directly.ĥ. Most USB 3G/4G cellular modems are actually several “devices” rolled into one – the most notable being some form of onboard data storage. The first thing I do is make sure my device is connected by typing:Ī list of connected and available Android devices should come up. I have the Android SDK and Android Platform Tools installed, so I can access Android Debug Bridge right from the prompt. Once the BeagleBoard is booted into Android, plug in a USB cable from the Linux terminal to the BeagleBoard’s OTG type B-mini port.Ĥ.
Switch on your BeagleJuice, 2nd Gen to power on the Android Ultimate Pro Kit.Ģ.
This tutorial assumes that you already have Android SDK with Android Debug Bridge set up, and that you’re communicating to the BeagleBoard/Android device from a Terminal program.ġ. Linux terminal (Asus Eee PC is *perfect* for this) I used a dedicated Ubuntu EeePC)ġ T-mobile Rocket 3.0 4G laptop stick (but most will work – see below)ġ Type B-mini USB cable for connecting the computer to Amber Enjoy!ġ BeagleJuice, 2nd Gen (optional – a 5V power supply works fine too)ġ Linux or Mac computer ( cygwin for Windows could also do the job, with a little bit of toolchain setup. I haven’t tried it out yet, and hooking up modems the old-fashioned way helped me learn a few useful tips and tricks in navigating ADB, so I’m writing it all out here.
Note: There’s a much sleeker (beta) way to get cell modems running in Android with the new PPP widget from Draisberghof. In this case, I used an Android Ultimate Pro Kit, which runs Android 2.3.4 on the BeagleBoard xM/ BeagleTouch/ BeagleJuice, 2nd Gen. A lot of folks have been asking me about this one, so I figured it’s about time to pull together my notes on the tutorial and get started…
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