DIY Simple Flame Following Robot Without Microcontroller

This is a Fun to do robot. The robot start to move if the sensor detects flame, be cautious when using a lighter or other element using for flame.

Required Components :

1x Castor Wheel

2x wheels

2x Gear Motors

1x Flame sensor

1x Chassis

1x ULN2003 IC

1x 9v battery

1x battery snap

1x Breadboard and connecting wiresSpacers, stud, screws and screw driver

How to connect the components.