Hardware Description - NEX ROBOTICS Fire Bird V ATMEGA2560 HEXAPOD User Manual

4. Hardware Description

This chapter contains the hardware description of the Fire Bird V ATMEGA2560 hexapod robot.
Fire Bird V hexapod robot platform has 4 boards:
1. Power board
2. Main board for the Fire Bird V
3. ATMEGA2560 microcontroller adaptor board for the Fire Bird V
4. Servo control board
4.1 Power board
Power board is mounted inside the robot chassis. It has built-in fuse and fuse blown LED
indicator at the front side. If fuse is blown, this red LED will glow. Power board gives 7.4V to
the Robot's main board and regulated 6V, 20Ampp to the servo motors.
Note:
If Fuse blown LED glows then replace the fuse and try to run the robot again. If fuse is blow
again then look for probable cause of short circuit. Use any standard 20A fuse as replacement.
4.2 Main board for Fire Bird V
Main board is a standard main board used in all the Fire Bird V series of robots. For more details
on the hardware, refer to Hardware Manual.
4.3 ATMEGA2560 microcontroller adaptor board for the Fire Bird V
ATMEGA 2560 Microcontroller is mounted on the main board. It's a standard board used in all
Fire Bird V robots. For more details on the hardware, refer to Hardware Manual.
4.4 Servo control board
Servo control board is mounted on the ATMEGA2560 microcontroller board. This board is used
to connect / interface all 18 servo motors of the hexapod to the ATMEGA2560 microcontroller
board. It has relay used as switch to control power given to servo motors. Relay is connected to
the PORTD of the ATMEGA2560 microcontroller. It also has battery voltage monitoring circuit.
Figure 4.1 shows the connections of the servo control board.
© NEX Robotics Pvt. Ltd. and ERTS Lab IIT Bombay, INDIA
Fire Bird V ATMEGA2560 Hexapod Robot User Guide
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