Narang is a system that allows you to send messages to prisoners in real time through a webb app that communicates with devices inside the cells. The preset messages will be transalted by these devices into light patterns. The aim of Narang is to increase a sense of community among the prisoners, to encourage them to share thoughts and emotions inside an anonymous space like the cell.
If you are using this system through the sign outside the jail, the message that you send, will be received by all the prisoners. If the government allows you to use this system, because you are a family member of a prisoner, you can type in the number of the device related to your beloved, and he will know that the message is for him, even if your message will be sent to all his cellmates.
Here are the light patterns that are related to each preset message and how the prisoners can interact with their devices.