Adding Complexity to the Robot: Working with LCDs

Abstract

If motors give your robot life, LCDs give your robot character. In this chapter, we will be working toward the goal of adding another piece of hardware to the previous chapter’s robot. In a hypothetical professional scenario, the customer might like to have a color LCD that displays in plain English which direction the robot is moving. Let’s assume that customer wants you to use the SparkFun color LCD shield for the prototype. But because the motor and color LCD shields share some of the same pins (a conflict that arises often), we’ll need to create a workaround for that issue.