CP/PC364 Data Communications and Networks Laboratory

1-Wire protocol

Overview

This week's laboratory investigates 1-wire protocol.

Background

Objectives

Equipment

• Arduino Uno board, with linksprite LCD display
• 1-wire temperature sensor

Exercise

1. Connect the Arduino to the oscilloscope, using one channel for the signal.
2. From the Dallas Temperature examples, use the Simple sketch to read the temperature sensor and display it on the serial monitor.
3. Watch the signals on the scope and identify ?? Draw the signal or print it.
4. Modify the sketch as needed so you display the temperature on the LCD display.
5. On the oscilloscope drawing, identify ??
6. On the oscilloscope drawing, show the time scale and explain ??
   
   
7. Combine this sketch with the lcd shield sketch to display the temperature on the LCD.
8. Show your pin assignments on the diagram.