Page 81 - Robot Design Handbook ROBOCON Malaysia 2019

i. The Transmitter

The controller consists of a joystick shield, Arduino UNO micro-controller board,

and the master Bluetooth (HC-05) which transmits the command to the receiver. After
connecting the Arduino with the joystick shield as shown in Table 2, the Arduino code is

downloaded and tested the action of the joystick by opening the serial monitor to see the

data that will be transmitted.

Table 2: Connection between the Arduino and Joystick Shield

Arduino Pin Joystick

A2 Transmitter

A3 Receiver

Figure 1 shows the transmitting and receiving process started by serial connection

on digital pins of the Arduino and then defines the Bluetooth and joystick shield pins. After
all definitions, the baud rate and pin mode are set, then the Arduino enters the loop to check

the button pin each time and send the data are sent by the Bluetooth.

77