The present project consists in the construction of an unmanned aerial vehicle (UAV) quadcopter-type, operated by remote control. The quadcopter will be operated by four motors with propellers, located at the edges of the frame. These motors will be controlled by a microcontroller arduino-type.
The project is going to be built with Bluetooth as the interconnection between the quadcopter and the remote control, which has a range of 2.4 to 2.48 GHz. The instructions for the quadcopter will be sent by means of a cellphone, which is going to have an app with the program to use the cellphone as a remote control
The microcontroller, the Bluetooth and the motors will be all fed by rechargeable 3.7-volt lithium batteries. It has to operate at a minimum distance of 10 meters. This project will be useful to acquire knowledge about data transmission and the function and operation of various integrated circuits.
In this second evaluation, a link between Bluetooth and a module was developed by means of AT commands, which are instructions given to communication devices with a programming language. Then, the Bluetooth module was used in an arduino microcontroller, in order to make the arduino capable to receive instructions wirelessly.
An app was developed in a software called MIT app inventor, which has several buttons for controlling the motors in different ways. This app uses Bluetooth, so the Bluetooth module can receive the instructions from the app and send them to the arduino with PWM.
The tests were made with a led, to check that the Bluetooth module was receiving the instructions and the led was turning on and off. Then, the app was used to control a motor and it worked properly. Also it worked at a distance of 15 meters, which is an acceptable distance for the project.
The project in this semester was the development and construction of an unmanned aerial vehicle type quadcopter. It is controlled via bluetooth by means of an app previously programmed in a programming language called arduino and the interface was designed in a website called MIT app inventor.
The UAV operates by means of an arduino mini pro installed at the center of the quadcopter, which is connected with a bluetooth module. This module receives the instructions from the app, which is installed in a cellphone. The cellphone’s app is synchronized with the quadcopter using GFSK modulation, so the quadcopter receives the instructions just from the cellphone with the app, excluding the other cellphones.
Unfortunately, the results aren’t satisfactory, because it just elevates a short distance from the floor and it just moves and spin randomly at any direction, but at least, the control sends signals to make the UAV move.
