Safe City: A Device to Keep You Safe

The device will keep you safe. Just have to click a button and your precise location will be shared.

Patel Darshil

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Description

This protection device will keep you safe by just pressing a button. If you are in Danger, just press the button and your location will be shared on any website you select in code. By the use of Infineon DPS310 pressure sensor, height of person in building can also be detected for precise location. The Device will run on 9v Battery. It is handy device. You can make enclosure and keep the circuit in it.

Details

Components

1 × Arduino UNO
1 × ESP8266
1 × Infineon DPS310
1 × 7805 Voltage Regulator IC
1 × Button

View all 6 components

Build Instructions

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1

Power Supply

Here we will use 9v Battery for power supply. We will need 7805 Voltage Regulator IC to get 9V. Then from 7805 IC, feed it to arduino.
2

Connecting ESP266 and powering it

Connect the Arduino’s 3v3 (3.3V) output to ESP8266. The ESP8266 works with 3.3V and not 5V, so this is necessary.
3

Connect RX and TX

Connect the RXD pin of the Arduino to the RX pin of the ESP8266.Connect the TXD pin of the Arduino to the TX pin of the ESP. When we want two things to talk to each other over serial, we connect the TX pin of one to the RX of the other (send goes to receive and the opposite). Here we do not have the Arduino talk to the ESP8266 though, our computer is talking to it via the Arduino.