Study: DeTECH: An Internet o Things and Satellite-based Crash Detection Device
Student: Reziya Marie D. Florentino
Materials
We gathered the Arduino UNO, SIM808 Module, sim card, breadboard, battery holder, wires, buttons, 9V battery,
battery charger and 9V battery T-style connector bought from Shoppee and lastly, a toy car we got from a local mall to
place all the components inside.
Arduino Uno
Breadboard
SIM808
Battery Holder
Batteries
Wires
T-Style Connector
Buttons
GPS Module
Methods
Designing the Prototype
The design of our project was sketched first before it was turned into a 3-Dimensional Model by one of our
members with the help of computer software online called TinkerCad. It served as a guide for us to develop
DeTECH.
Figure 1. Shows the layout of the inside and outer shell setup of DeTECH
Figure 2.Shows the closer look of the details inside of DeTECH
Gathering Materials
My team and I gathered all the materials that we needed and placed them in a box for safety. We bought:
Arduino Uno, SIM808 Module, GPS Module, 9V battery, battery holder, breadboard, buttons, T-style
connector, 18650 batteries, 18650 battery holder, and wires, from an online store in Shoppee and assessed
each material in order to check its quality.
Assembling
We connected the Arduino Uno board to the SIM808 using wires. The batteries are charged for it to be used to
power the SIM808 while the 9V battery is to activate the Arduino. The GPS antenna is attached to the SIM808.
Using a toy car, we opened its trunk and placed the Arduino Uno and SIM808 inside it. The batteries we're
placed under since we're using a toy and not an actual car. The GPS is placed at the top of the car so it can
easily find a signal to send a message. We placed the button inside the bumper of the car for it to directly be
pushed without any human intervention.
Programming
After assembling all the materials and connecting them, our qualified scientist helped us with the coding using
Arduino IDE. We were able to program the Arduino Uno after the code was verified and uploaded.
Data Gathering
We tested our finished project in an open field together with our qualified scientist. Photo documentation and
recordings were done from the designing of prototype to data gathering for proofs. The speed reading, time
accuracy, and time accuracy were done for 20 trials.