Hand Gesture Controlled Car using Bluetooth Modules and Accelerometer Sensor

This research work demonstrates the usefulness of an accelerometer sensor and how it can be used to move an object using hand gestures. The device uses two Arduino UNO models, one as the transmitter and other as the receiver. The functioning of the device is based on the serial data transmitted and received through the Bluetooth modules. The data to be transmitted and received is produced by the accelerometer sensor. Based on the data received, the motors run to produce the desired movements. The device can communicate within a range of ten meters. Such a device can be used as a gesture-controlled wheelchair for handicapped people. The code for functioning is uploaded to the Arduino UNO by Arduino IDE software. The major challenge that was faced during the preparation of the model was the connection of the Bluetooth modules. Each module sends and receives data at different baud rates. If the baud rates were not same, communication will not be established. One module serially transmits the data and another module serially receives it. Different prototypes are already available with slight variations. Instead of Bluetooth modules, other modules are available to establish wireless communication. Examples are: nRF modules, RF pair, Lora WAN. As Arduino UNO is larger and consumes more space, small boards such as Arduino Nano or Arduino Lilypad has also been implemented in the available models.