1. BREAD BOARD LED MOBILE PHONE DETECTOR
Amadi Ford-Trowell
Network Security & Electronics

2. Outline
Whose using a phone when your not supposed to

3. Motivation
The reason why I was so interested in this when you are at the one place and its silent and that one persons phone always goes off.
When you’re having family time and no phones are allowed.

4. Introduction
The technical background that is need would be electrical and understanding the basic information about antennas and how RF waves travel
cellphones use radio waves too, also traveling at the speed of light, and with a typical frequency of 800 MHz (roughly ten times greater than FM radio). That means their wavelength is about 10 times shorter than FM radio, so they need an antenna roughly one tenth the size. In smartphones, typically the antenna stretches around the inside of the case. Let's see how that computes: if the frequency is 800MHz, the wavelength is 37.5cm (14.8in), and half the wavelength would be 18cm (7.0in). My current LG smartphone is about 14cm (5.5in) long, so you can see we're in the right sort of ballpark.

5. Problems
The problems I ran into is how to make the led stay on while the phone was in use receiving or sending out a phone call
Also keeping a reliable distance to make sure the my led breadboard mobile phone detector would be able to pick up the RF waves

6. Assumptions
Where I went wrong was assuming that looking up videos and watching videos that my project would work all the time and very reliable
Reality it worked some of the time honestly if not at all so it was about a 50/50 chance of working.

7. Proposed Solution

8. Results
My proposed solution was to basically watch videos on how to keep an LED on while it was in use and have it synced when the call is being received or the or going on to stay lit.
But to also know when the phone is about to receive a text and it or send or typing it knows to flicker
It never worked the LED would only flicker and not stay lit during when the phone would receive a call.

9. Future Work
My future work is to be able to have the phone detector to be more reliable but also be able to hook up a sound detector so it would be able to alert you when a cellphone is in use

10. References
Hellenburg, S. (2017). spongebob [reading]. Retrieved from
sneaking [phone]. (2018). Retrieved from
hiding [book]. (n.d.). Retrieved from
How do antennas and transmitters work? (2018, May 6). Retrieved from
Yash Jain, G. (2015, September 20). How To Make A Mobile Phone Detector. Retrieved from

11. Acknowledgment
EKU
EKU diversity Office
Dr. Vigs

12. Q/A