Assembling the CheapBot Line Follower In 8 easy steps

Schematic

Step by Step The bare PCB

Step 1 Add Resistors

Step 2 Add IR LEDs

Step 3 Add Phototransistors

Line Follower with IR LEDs and Phototransistors

Step 4 Solder the Interface Cable using the strain relief holes

Note Function of the Interface Cable header pins

Step 5 Attach two plastic bumpers using four sheet metal screws

Step 6 Attach line follower to the bottom of the robot

Step 7 Plug in the Interface Cable

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

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