28139 Parallax Inc, 28139 Datasheet - Page 16

• 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

Figure 1-4: IR Message Timing Diagram
In this chapter, you will start with simple programs to make your BASIC Stamp 2 module
interpret and act on the pulse patterns sent by the infrared remote. You will then expand
these programs to guide the Boe-Bot with the IR remote.
ACTIVITY #1: CONFIGURING YOUR REMOTE
In this activity, you will program your universal remote so that it sends PWM messages
to a television set using the SONY protocol. In this case, the term "programming" means
a sequence of key-presses on the remote that tells it to send signals to a SONY TV.
Resting state
between message
packets = 20-30 ms
duration = 2.4 ms
If you change the batteries in your remote, you will probably have to repeat the steps in
this activity. Why? Because, when you remove the batteries, the remote will probably forget
that it was programmed to be a SONY TV controller.
Don't throw away the instruction sheet/booklet that comes with your remote! The
batteries for these remotes might last longer than your memory of the code and procedure
for entering it. A sticker on the back of the remote with the code and button sequence can
also come in really handy.
Start pulse
Start
Resting states
between data pulses
= 0.6 ms
Bit-0
Binary-0
data pulse
durations = 0.6 ms
0
Bit-1
0
Bit-2
0
Bit-3
0
Bit-4
0
Bit-5
Binary-1
data pulse
durations = 1.2 ms
1
Bit-6
0
Bit-7
1
Bit-8
0
Bit-9
0
Bit-10
0
Bit-11
0