IR Codes |
How to connect
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Connect your wired remote control to Remote Control port on the Product.
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Remote Control IR Code
Output waveform
single pulse, modulated with 37.917KHz signal at 455KHz
Tc
Carrier frequency
| FCAR = 1/Tc = fosc/12 |
T1 | Duty ratio = T1/Tc = 1/3 |
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Configuration of frame
• 1st frame
Lead code
Low | High | Data code | Data code | |
custom code | custom code | |||
|
|
C0 C1 C2 C3 C4 C5 C6 C7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7
• Repeat frame
Repeat code
Tf
▲
Lead code
9ms
▲ Repeat code
9ms
4.5ms
0.55ms
2.25ms
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Bit description |
|
• Bit "0" | • Bit "1" |
0.56ms
1.12ms
0.56ms
2.24ms
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Frame interval : Tf
• The waveform is transmitted as long as a key is depressed.
Tf
Tf
Tf=108ms@455KHz
A17
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