--- this is a upgraded and better version of my first tutorial called "wireless tethered shooting with any DSLR camera V2. This tutorial is NOT compatible with the version 1.0 of the TP-Link MR-3040! You need version 2.0 or above to follow this tutorial. If you have version 1.0 then you should follow the version 2 of this tutorial that can be found HERE ---
Newer DSLR Cameras allow you to shoot tethered wirelessly over your wifi lan. Unfortunately most cameras don't support this tecnology. BUT! There is a solution! You can make use of cheap credit card sized, wifi routers to build your own system for less than 50$! First of all, a special thanks goes to Michael, the programmer of "VirtualHere". He made special changes to his software to make this project possible. Ok guys, here it comes.. its just to have my butt backed up.. :) Disclaimer: While following precisely every step should be quite easy and nothing should go wrong, there still is the possibility that something doesnt work out... (for example, router battery dies on you while you are flashing the firmware). In any case, the router is recoverable via advanced techniques that will not be discussed here. If those techniques are too complicated for you then you most likely bricked and lost your router. In any case I am not responsible for any kind of damage caused to things or persons by this project.
Step 1: Description, What You Need...
This project aims to give wireless compatibility to any camera. The project is easy to follow and requires about 10 minutes to complete. Just pay attentio to the version of your hardware (version 1.0 or 2.x) as only 2.x is compatible! This new version of this project allows you to use the 3-position switch on the side of the router to decide if you want your system set up as a Access point, if you want it to join a network or if you want to update the entwork settings and flash a new firmware via USB stick. It may sound complicated but its really easy and everything will be explained in this tutorial!
Here is the list of what you need:
- ANY DSLR Camera (or normal camera) that supports tethered shooting via USB cable (basically every DSLR camera around will do it)
- TP-Link MR3040 (MUST be version 2.0 or above is better) costs around 50$
- lan cable for initial setup (one is included in the MR3040)
- A PC that will be your "client" for showing the pictures
Step 2: Setting Up the PC
There is not much to do on the PC!
All you have to do is download the VirtualHere client from this page: https://www.virtualhere.com/usb_client_software
Download the client that works best for your system!
Step 3: Changing From the Original Firmware to the OpenWRT Firmware
When you get your router you have to replace the firmware with OpenWRT. If you already have a Openwrt build on your router from previous projects then you can skip to the end of this step.
First we need to flash it with a special firmware that is sort of a intermediate firmware. It is used to bypass the TP-Link firmware check. So all we have to do is download the file and flash it! here we go:
Notice the ending "factory.bin". This means that this image is meant to be flashed as long as you still are on the original firmware. Now, after downloading disable your wifi adapter to avoid IP conflicts, and connect your TP-Link MR3040 router to your PC via the lan cable that came with it. Open the browser and go to the page http://192.168.0.1 and login using the default username and password (admin/admin). Now go to the firmware update page (see image), hit "browse" and select the firmware you just downloaded and flash it!
after about a minute the flashing process is finished and you can access your router at the address http://192.168.1.1 (note that the IP address changed!)
Step 4: Installing the Custom Firmware
First of all, put the 3-pos switch to the "AP" position.
Next, download the custom firmware from here:
Now in the top menu of your router's interface click on "system" and go to the backup and restore page. From there you can flash the new firmware.
ATTENTION: you must uncheck the "preserve settings" check, else the flashing process will not overwrite the system settings with the new ones stored in the image. The new image does not have a user interface so once flashed it is not so easy to restore. Currently your wifi acts as an access point called "wifi photo" and the password to access it is "password". Your ethernet port has a fixed IP address: 192.168.0.200 and if for any reason the wifi does not work, then you can access your router via ethernet cable by assigning to your network card a fixed ip address that matches the router's one. Ok,at this point you can reenable your wireless adapter on your pc! If you want to use the router as an access point then you are good to go, but i recomend to finish the reading anyway to understand what the other 2 positions on the switch do.
Step 5: The 3-Position Switch...
By now you have used the 3 position switch already. You have put it to the AP position.
This position makes the router work in Access point mode. Basically the router generates its own network, and you can connect to it with your laptop or pc as when you join a normal wifi network. As stated in the previous step the wifi network is called "wifi photo" and the password to access it is "password". If you change to AP from WISP it will require two reboots in order to take effect. just turn it on, wait 2 minutes, turn it off, and turn it on again. This is only if you change from WISP to AP.
This position allows the router to join an existing network. before we can do so we need to set up the network credentials and name to be able to join the network. This will be described next and makes use of the third and last position. If you change to WISP from AP it will require two reboots in order to take effect. just turn it on, wait 2 minutes, turn it off, and turn it on again. This is only if you change from AP to WISP.
This position is used to update the network settings and to flash a new firmware. Lets look into the two options in detail:
- Updating the network settings
Download this file and put it as it is onto a USB stick: http://www.igormasin.it/wirelessJN
Open the file with notepad (ATTENTION, do not use wordpad or word or any other rich text editor! use the simple notpad or equivalent!) and edit these entries to match your wifi settings:
option ssid 'YOUR_WIFI_NETWORK_NAME_(SSID)'
option encryption 'YOUR_WIFI_ENCRYPTION_FOR_EXAMPLE_psk2'
option key 'YOUR_WIFI_PASSWORD'
Possible values for the "encryption" property are:
wep for WEP,
psk for WPA-PSK,
psk2 for WPA2-PSK,
Now save the file and turn OFF your router. Connect the USB stick to the router and turn the router on. Wait until the WIFI led blinks at 1 second intervals and unplug the usb. At this point the led stops flashing. Put the 3 Pos. switch in the AP or WISP position, turn the router off and back on. Wait two minutes, turn it off again and back on and your router will now use the new settings you have entered in the file.
- Flashing a new firmware
This firmware makes flashing a new software very easy. Same as above you must download the firmware you want to flash. Do NOT use this to flash the original firmware as it exceeds maximum size and will not work! Any other OpenWRT firmware will work ok. Once downloaded, put it on the USB stick and rename it to "up.bin". Turn the router OFF and connect the usb stick to the router. Turn the router on and wait for the "LAN" led to blink at 1 second intervals. at this point you must unplug the usbstick. The Lan led stops blinking and the WIFI led starts blinking. At this point you must put the 3 Position switch to the AP position. Once done the router starts writing the new firmware and will reboot on its own. DO NOT TURN THE ROUTER OFF at this point. After about 2 minutes the router will have rebooted and will be running in AP mode. The Flashing overwrites every network settings you previously wrote onto the router so you will have to upload them again. If you have both files (wirelessJN and up.bin) on your USB stick the sistem will only take wirelessJN into account.
Step 6: How to Use It
Its really easy to use! Just turn the router on, hook up your camera and start the virtualhere client on your pc!
Virtualhere will automatically detect the router within seconds. if it doesnt, then you need to add the IP address manually! Right click in virtual here and hit "add address". If you are in AP mode then the address to add is "192.168.5.1:7575", if you are in Join Network mode then you must look for the proper IP address in your main router's connected devices list.
When your router and camera get detected, right click on the device and hit "use device". the first time it will install the drivers.
Now it is as if your camera was connected directly to your PC and you can use it with your favorite software!