Hi Andy
> Can anyone tell me more about the IR blaster? How easy is it to send
> custom codes at custom baudrates? And how much of its functionality is
> in firmware? For example, it would be useful to disable the 38KHz
> carrier, since I'll probably just hardwire the IR blaster output into
> the PSU. Is this possible?
>
IR Blaster works like this: For each bit in an IR command the plugin
sends a high/low time value (in microseconds/modulation) which tell the
firmware to send for hightime and wait for lowtime. The firmware also
applies the carrier during the hightime.
But there is a mode for remotes that do not use a carrier. The format
is called ITT and consists of 20uS hightime and multiple of 20uS
lowtime.
To tell the firmware to send such an ITT impuls the hightime needs to
be set to 1 and the lowtime can be set as needed. The result is a 20uS
hightime (fixed) and the specified amount of lowtime.
So it would be possible to send two different patterns for 'power on'
and 'power off'.
Power On: hightime(20uS), lowtime(10*20uS), hightime(20uS),
lowtime(10*20uS)
Power Off: hightime(20uS), lowtime(20*20uS), hightime(20uS),
lowtime(20*20uS)
Code:
--------------------
begin remote
name ampswitch
bits 2
flags ITT
one 1 10
zero 1 20
begin codes
power_on 0x03
power_off 0x00
end codes
end remote
--------------------
Felix
--
fcm4711
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