1. Assembling the CheapBot Line Follower In 8 easy steps

2. Schematic

3. Step by Step The bare PCB

4. Step 1 Add Resistors

5. Step 2 Add IR LEDs

6. Step 3 Add Phototransistors

7. Line Follower with IR LEDs and Phototransistors

8. Step 4 Solder the Interface Cable using the strain relief holes

9. Note Function of the Interface Cable header pins

10. Step 5 Attach two plastic bumpers using four sheet metal screws

11. Step 6 Attach line follower to the bottom of the robot

12. Step 7 Plug in the Interface Cable

13. Test the Behavior of the Line Follower SYMBOL Detectors = B0 SYMBOL RightDetect = BIT0 SYMBOL LeftDetect = BIT1 Line_Finder_Check: Detectors = 0 RightDetect = PINC.0 LeftDetect = PINC.1 DEBUG GOTO Line_Finder_Check

14. Step 8 Write the line follower program –Drive the robot forward –Check both sides of the line follower –Steer which ever way detects the black line –Repeat until both sides of line detector see black