Refer to the documentation on the files page (tutorials, schematics, board layouts, source code, datasheets, etc) to answer the following questions.
1. Briefly explain the how to drive a dot matrix LCD display using time multiplexing. Draw the waveforms necessary to generate a checkerboard pattern on a 4x4 display.
2. Examine LCD_2010.pde. How does the program address an individual pixel? This program is designed to address a dot matrix display, but the commercial display provided with the kits is a 16-segment display. (Note: You will only be able to address 2 digits with the shield.) How would you modify the code to make it easier to use this display? Optional: modify the code to display alphanumeric information.
3. What function do the resistors serve? How important is the value of the resistor?
4. Explain why LCDs use a biphasic waveform for driving. What would happen if you used a single polarity to drive the LCD?
LCD fabricated in CEPSR Clean Room