28119 Parallax Inc, 28119 Datasheet - Page 103

• Manufacturer Part Number: 28119
• Description: KIT UNDERSTANDING SIGNALS
• Manufacturer: Parallax Inc

Specifications of 28119

• Lead Free Status: Contains lead
• Accessory Type: Oscilloscope
• Interface Type: USB
• For Use With/related Products: BASIC Stamp® 2 and Board of Education
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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