Does the Last Clock App run on an older iPad/iPhone?
The original iPad doesn't have a camera, and therefore doesn't work. However, should there be enough interest, we could develop a "display only" version, that requires another device to provide a remote stream.
The screen is black when I star the application? On the website, the images look much cooler with the three circles complete.
Patience. It takes 12 hours before the image is complete the first time, and from then on it keeps overwriting itself. If you close the app or move the device, or background it, it will start again from the beginning the next time you return to it. In future, we will develop a remote client architecture, where the server keeps the complete picture up to date, and the clients connecting to it will have the full image from the beginning.
How to set up the remote streaming?
To make a stream available from your iPad to be accessible by someone else remotely, you have to make the IP address of your device visible over the internet. There are many different configurations how to do this, and in the future releases, we will make this much easier. For now, you have to either probably tweak your modem settings or talk to your system administrator. If you search for port forwarding in relation to your hardware setup, you will find plenty of advice online. Below we have put together the most minimal setup, with the assumption using an AirportExpress as the device making the connection to the internet.
First, it is probably good to know that if you want to stream from one iPad to another within the same intranet, you don't need to fiddle with any settings. You just define the port you will be sending from, and on the receiving device, you just type in the IP-address of the sending device.
However, if you want to stream over the internet, you have to make the iPad accessible through one specific port from the outside world. Assuming AirportExpress as the device, you can add "port mapping" in the "Advanced" tab of the "Airport Utility" application. Note that this option is only available, if you use the AirportExpress to make the internet connection in the first place. If not, you will have to search for your hardware's configuration procedure.
From the Settings, Wi-Fi, and the currently connected network, you can find the IP address of your iPad. You need to use this in the port mapping settings as the IP address to forward the outside port to.
Fix some port, preferably over 10000, define the Public Port Number and the Private Port Number as being the same (to keep things simple). The Private IP address is the IP address your iPad has that you want to send the stream from.
Next, you have to find out the public IP of your internet connection. This is the easiest to find by going to http://www.whatismyip.com/ This is the IP address you have to type into the Receiving iPad's settings, and define the same port number you set in the port mapping settings.
Then when you now start your sending iPad's Last Clock App, and from the settings define the sending port to be the same as what you just configured, things should start rolling.
Toggling sharing your stream, you see the port and the (local) IP of your device, that need to be entered in the receiving device. If you want to make it accessible outside the local network, you will likely have to use port forwarding and use the public IP instead of the displayed local one. (We are working on making the remote sharing easier, but it's not there yet.)
On the receiving device you can simply enter the IP and port number of the sending device. You can send a stream whilst receiving it also, which means that you will be seeing the remote stream, but your own device's camera is available for other devices to tune into.