27220 Parallax Inc, 27220 Datasheet - Page 198

• Manufacturer Part Number: 27220
• Description: BOOK STAMPWORKS
• Manufacturer: Parallax Inc

Specifications of 27220

• Accessory Type: Booklet
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: StampWorks
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

Page 188 · StampWorks
EXPERIMENT #33: USING A REAL-TIME CLOCK
This experiment uses the I2C framework developed in Experiment #32 to
communicate with a DS1307 Real-Time Clock chip.
RTC time capability and
management is important for time-of-day oriented applications, and applications that
require the measurement of elapsed time.
Look It Up: PBASIC Elements to Know
HEX, HEX1 – HEX4 (used with DEBUG)
•
Building the Circuit
Connect four pushbuttons to P4-P7 (see Experiment #14) and connect the DS1307
as shown below: