pololu 32u4 tft display free sample

Your 3pi+ 32U4 ships preloaded with a program that demonstrates most of its features. We recommend trying out this program to familiarize yourself with what it can do before moving on to programming it yourself.

When you first turn on your 3pi, you should hear a beep and see an introductory screen followed by a prompt to press the B button, which will take you to the main menu. On the original (LCD) version of the 3pi+ 32U4, if you hear a beep but do not see anything on the LCD, you might need to adjust the contrast potentiometer on the control board near the top right corner of the LCD. Once you are at the main menu, you can press C or A to scroll forward or backward through the menu, and you can press B to make a selection or to exit one of the demos. These demos are accessible from the menu:

Power: This demo displays the battery voltage in millivolts, which should be above 5000 (5.0 Volts) for a fully-charged set of rechargeable batteries or a fresh set of alkalines, and indicates whether USB power is present.

LineSens: This demo shows the current readings of the five IR line sensors using a bar graph. Bigger bars mean lower reflectance (e.g. the sensor is over something dark). Placing a reflective object such as your finger under one of the sensors should cause the corresponding reading to drop visibly on the graph. This demo also displays “C