Technical Approach

Technology is never reliable. To develop something that is both robust and invisible is really the goal of anyone that likes to play in this space. This project calls for something that is both reliable and well hidden. Dr. Tej Pochiraju. an industry expert in hardware technology worked with us to develop the technical parts of our installation

Technical Hops

The technical components we used included GSM phones and modems, a Raspberry Pi,  motion sensors, a cloud server and cloud telephony services. With these, we developed a system that automatically triggers our rotary dial GSM phone to ring when a user opens the phone booth door. The installation is powered by mini power banks.

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Diagram Showing all the Technical Hops from Moment of User Activation at Booth

We defined two Technical Scenarios that would likely play out with the installation when in use:

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Power Supply

We worked hard to ensure the tech aspects work seamlessly off-grid, as we made the assumption that getting electricity lines into the location would be unlikely. Towards this, we hoped to garner the support of industry leaders in the solar energy space – We were hopeful that they will provide the technical elements of backup batteries and solar panels required to run the phone booth. However the timelines proved to be too restrictive for them. We thus went with rechargeable mini power banks to power the Raspberry Pi, Sensors and Modem. The rotary dial phone had an inbuilt rechargeable battery that would last 5 hours of usage.

From Top: Brainstorm Notes | Rotary Dial GSM Based Phone | Power banks


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From Top: Tech parts required for the phone booth | Tech Components Come Together \ Testing the theory