Question

I want to know about a few IoT applications which my team could develop a prototype in around 4 weeks

Answer 1

IoT applications include Smart agriculture Heart monitoring,Detection of GAS line leakage etc.Since you want to develop a prototype in around 4 weeks following prototypes could be done in your requirement.I have done the below two prototypes in 4 weeks each.

1.Home Automation Using Motion Sensor

The materials or pre-requisites to develop this prototype are Raspberry Pi,bread board,motion sensor,LED and connecting wires.

Raspberry Pi's GPIO pins will be used to get in contact with the motion sensor.These ports can be used to configure for input and output.Coding for accessing these pins can be done through actual system driver calls and bcm library calls.Write a code and dump it on raspberry pi and connect your circuit accordingly on the bread board.When motion is detected the sensor will sense it and will switch on the LED and should display some messages(for user identification) on the screen.

2.Accident Detection and Rescue System

The materials or pre-requisites to develop this prototype are accelerometer, GSM module and Microcontrollers(AT MEGA328 is used by me as it consists of display screen,accelerometer sensor and GSM module ).

Accelerometer is used to detect the drop in speed or velocity when an accident occurs(The speed of the vehicle automatically drops down abruptly when it hits some obstacle).Microcontrollers with the help of GSM module will trace the location and sends the messages to the required contacts and near by hospital,police and blood banks.The ambulance and rescue team can approach to the accident place and save the lives.