I have managed to unbrick a D-Link DIR-615 Rev A1 back to D-Link firmware (1.00) from firmware 1.10. Allow me to describe the situation:

I recently encountered a situation while loading firmware into an Actiontec MI424-WR router, when I found myself without a bootable firmware, and the OpenRG bootloader would vehemently refuse to load .rmt files.

The DFRobot LCD Keypad Shield is found at DFRobot.com and various other retailers (Robotshop, etc)

To use this shield with the LiquidCrystal library, use this define:

Conversing with your Laser Printer:(See disclaimer below)

To extract information from your printer in PJL telnet to its IP address, port 9100 (or by serial, see below), and send it these commands:

<Control+[>%-12345X@PJL <Enter>

Then copy and paste the following commands:

To access USB Host mode on the Touchpad (to plug in a Keyboard/USB Drive/etc), you need:

1. A microUSB to USB Female cable (USB-OTG cable), available on ebay for ~$3, shipped [search 'USB-OTG cable']
2. A powered USB Hub (a USB Hub with a spot to plug in an external power supply), available on ebay for under $10, shipped, with power supply  [Search 'powered usb hub']

This is gRover, the Grove-Platform Rover; it is a general, all-purpose rover for house exploration.

Foreword:

This page is a bit of a mess, I'll admit. The PDF file attached is much neater and contains much more information about the project than this page's text does. For more pictures, see the gRover Flickr Photoset. This rover build uses parts graciously provided by Seeed Studio.