28139 Parallax Inc, 28139 Datasheet - Page 28
28139
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
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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.
√
√
√
√
√
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.
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