70016 Parallax Inc, 70016 Datasheet - Page 27

• Manufacturer Part Number: 70016
• Description: TEXT INFRARED REMOTE FOR BOE-BOT
• Manufacturer: Parallax Inc

Specifications of 70016

• Accessory Type: Manual
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Boe-Bot®
• For Use With: 29122 - KIT PARTS IR REMOTE FOR BOE-BOT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Your Turn – Measuring the Time between Data Pulses
You can modify the condition for the
the very brief high resting states between data pulses.
IR Message Timing Diagram
Figure 1-10 shows a timing diagram for an IR message from the remote. This diagram
shows the timing while the 5 key on its digital keypad is pressed and held. Your task will
be to fill in the blanks for each measurement using the numbers you have recorded in this
activity. Remember that there are 1000 µs in every 1 ms. Your measurements have been
in microseconds, so you will have to divide each by 1000 to enter the millisecond
measurements in the timing diagram.
√
√
√
√
√
√
√
Save CountRestingStates.bs2 as CountRestingStatesYourTurn.bs2.
Change the condition for the
IF (time > 1000) THEN
to
IF (time > 1) AND (time < 1000) THEN
Add a
Run the program and record the resting state between data pulses here: _______.
Use the measurements you have taken in this activity to fill in the millisecond
measurements in Figure 1-10.
Add up all the times to calculate the total message time: one resting state
between messages, one start pulse, twelve resting states between pulses, twelve
data pulses, two of which are binary-1 and ten of which are binary-0.
Record your IR message time here: ____________.
PAUSE 100
command right before the
IF…ENDIF
IF…ENDIF
Chapter 1: Infrared Remote Communication · Page 17
code block from
code block again, this time to search for
LOOP
command.