# Title Team Members TA Documents Sponsor
42 Open source and cheap radiosonde
Khushboo Jain
Lake Boddicker
Raunak Barnwal
Yamuna Phal design_review
We would like to make a cheap, open source weather radiosonde. Currently, radiosondes are launched in 92 different locations 365 days a year and cost upwards of $250. When they drop back to the surface, the radiosonde is rarely ever recovered and reused.

We would like to develop a prototype that offers a locating functionality. The radiosonde will consist of temperature sensors, barometer, humidity sensor, transmitter and receiver with a quarter wave antenna. In addition to transmitting pressure, temperature and humidity readings, the prototype will offer an option to add an additional sensor to measure research data such as carbon dioxide levels in the air to determine air quality and track variations.

Wireless IntraNetwork

Daniel Gardner, Jeeth Suresh

Wireless IntraNetwork

Featured Project

There is a drastic lack of networking infrastructure in unstable or remote areas, where businesses don’t think they can reliably recoup the large initial cost of construction. Our goal is to bring the internet to these areas. We will use a network of extremely affordable (<$20, made possible by IoT technology) solar-powered nodes that communicate via Wi-Fi with one another and personal devices, donated through organizations such as OLPC, creating an intranet. Each node covers an area approximately 600-800ft in every direction with 4MB/s access and 16GB of cached data, saving valuable bandwidth. Internal communication applications will be provided, minimizing expensive and slow global internet connections. Several solutions exist, but all have failed due to costs of over $200/node or the lack of networking capability.

To connect to the internet at large, a more powerful “server” may be added. This server hooks into the network like other nodes, but contains a cellular connection to connect to the global internet. Any device on the network will be able to access the web via the server’s connection, effectively spreading the cost of a single cellular data plan (which is too expensive for individuals in rural areas). The server also contains a continually-updated several-terabyte cache of educational data and programs, such as Wikipedia and Project Gutenberg. This data gives students and educators high-speed access to resources. Working in harmony, these two components foster economic growth and education, while significantly reducing the costs of adding future infrastructure.