28139 Parallax Inc, 28139 Datasheet - Page 28

• Manufacturer Part Number: 28139
• Description: KIT REMOTE IR FOR BOE-BOT W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28139

• Accessory Type: IR Remote
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Boe-Bot®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Your Turn – Counting the Number of Messages Per Second
By pressing and holding a key on the remote for ten seconds, you can determine how
many messages per second the IR remote sends.
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√
√
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Run CountStartPulses.bs2 again; it was the first example program in this
activity.
With the aid of a clock or watch, press and hold the 5 key for ten seconds.
Divide the number of messages by 10.
Record the number of messages per second here ___________________.
You can use this to calculate the time it takes for an IR message and a resting
state with this formula:
Figure 1-10
IR Message
Timing
Diagram
Fill in your
measurements
for the times
indicated in
the diagram.