Little Brother Robot Based on AVR Butterfly

The project aims to build an AVR Butterfly based walking humanoid robot known as Little Brother.

The AVR Butterfly is the central brain of the robot with an old CD-R and some aluminum used to construct the body. The Linux AVR-GCC is used to develop the robot code and the design was flexible enough to be a good platform in developing other simple projects. The AVR Buterfly contains an onboard ATmega169 microcontroller.

The robot is powered by a 6V NiCd battery pack but anything similar can be used since they are only used to power the servos and the Butterfly carries its own battery. Also, any other servo can be used in this project. The battery pack will require some wires in order to be connected.

The GND and VCC of each servo should be connected directly to the battery pack since the servos are powered using only the battery pack. This takes care of supplying power to the servos. The pins PE in the board were chosen for controlling the power supply through J405. To make sure that the microprocessor control signals are not fluctuating, a 4th wire is needed.

Rest of the project