# Title Team Members TA Documents Sponsor
Aarnav Bhargava
Alberto Martinez Linera
Zihao Zhou
Qingyu Li design_document2.pdf
# Team Members:

- Aarnav Bhargava (aarnavb2)
- Alberto Martinez Linera (am91)
- Zihao Zhou (zihaoz4)

There are a lot of places in the world where people do not have access to clean drinking water. A lot of people are not able to filter the water because they have to take water directly from natural sources like rivers and lakes. Filtering services are also expensive to use for quite a few of these people. Quite a few people cannot use these filters or RO devices as they do not have proper access to electricity.

We propose the creation of a portable water filtration device that is solar powered. The filter would filter water collected from any place. Then it would use UV lights to disinfect the water. There would also be an indicator on the device that tells the user if the filter needs to be replaced or not.


The filtration system and the filter replacement indicator (using a water flow sensor). We would be using a filter to filter pollutants from the water. After the water is filtered it would go through the water flow sensor. The microcontroller would access the water flow levels and determine if the filter is working properly or if we need a replacement. If such a need arises, we would have an LED on the outside of the container that would light up.


Then the water will be treated through UV lights. The time of UV light working and the strength of the UV light will be designed to kill a decent percentage of bacteria in the water. There will be an indicator to tell you when it has finished being treated. The shell of the device will be designed to be opaque so UV light won’t hurt the users.


Our project will be working using solar energy. We will use a little solar panel and a dc-dc converter to power the UV light as well as the microcontroller.


We would be using a microcontroller to control the water flow sensor, the UV light treatment indicator, and to control the power of the UV light.

- Describe high-level goals that your project needs to achieve to be effective. These goals need to be clearly testable and not subjective.

- Demonstrate that water has been purified by our project by measuring the bacterial content as well as the turbidity before and after use of our filter (only to demonstrate).

- Demonstrate that our project works on solar energy.
- Demonstrate that the water filter indicator works.
- Demonstrate that the UV light does not come out of the container damaging the skin of the users.
- Reduce its weight to make it portable.

RFI Detector

Jamie Brunskill, Tyler Shaw, Kyle Stevens

RFI Detector

Featured Project

Problem Statement:

Radio frequency interference from cell phones disrupts measurements at the radio observatory in Arecibo, Puerto Rico. Many visitors do not comply when asked to turn their phones off or put them in airplane mode.


We are planning to design a handheld device that will be able to detect radio frequency interference from cell phones from approximately one meter away. This will allow someone to determine if a phone has been turned off or is in airplane mode.

The device will feature an RF front end consisting of antennas, filters, and matching networks. Multiple receiver chains may be used for different bands if necessary. They will feed into a detection circuit that will determine if the power within a given band is above a certain threshold. This information will be sent to a microcontroller that will provide visual/audible user feedback.

Project Videos