HOW-TO: $30 Wireless field monitor with DSLR controller

source: http://www.dslrfilmnoob.com/2013/12/11/tp-link-tl-mr3040-wireless-field-monitor-dslr-controller/

If everything works out correctly you should see Firmware Upgrade in your browser with a loading indicator bar. The firmware upload automatically and the router will reboot on its own.

Once the new firmware has been uploaded, use your tablet or phone to connect to DSLR controller network, your login password will be “dslrcontroller”. When your device is connected, you can use a usb cable to connect the TP-Link TL-MR3040 wireless router directly to your camera. After connecting your camera, power it on and place the camera in live view mode, then select the dslr controller app on your tablet or phone. If all goes well the app will fire up, see the wireless device and start working as though your tablet was connected directly to your camera.