70009 Parallax Inc, 70009 Datasheet - Page 103
70009
Manufacturer Part Number
70009
Description
BOOK UNDERSTANDING SIGNALS
Manufacturer
Parallax Inc
Type
Signal Analysisr
Datasheet
1.70009.pdf
(137 pages)
Specifications of 70009
Style
Book
Title
Understanding Signals
Contents
Guide to Generate, View and Measure Wave Forms
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Not applicable / Not applicable
Other names
70009PAR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
700090B
Manufacturer:
COPAL
Quantity:
5 510
Company:
Part Number:
70009CB
Manufacturer:
VISHAY
Quantity:
5 510
Part Number:
70009GB
Manufacturer:
TI/PHILIPS
Quantity:
20 000
Now you can see a similar pulse train generated from the Sony remote control protocol
(Figure 7-11). As shown at the beginning of the chapter, the large pulse in the beginning
is the start pulse. Any pulses that are 0.6 ms wide are logic 0s. The 1.2 ms pulses are
logic 1s.
FOR counter = 0 TO 10
NEXT
DEBUG CR,CR,"Binary Value: ", BIN8 IR_message, CR
DEBUG "Decimal Value: ", DEC3 IR_message, CR
DEBUG "Without bit-7: "
DEBUG " ",DEC3 IR_message & %01111111,CR
RETURN
√
IF (IR_pulse(counter) < 450) THEN
ELSE
ENDIF
IR_message.LOWBIT(counter) = 0
IR_message.LOWBIT(counter) = 1
Point the handheld infrared remote control at the infrared detector and press “5”.
Figure 7-11:
Sony TV
remote key 5
pulse train