Re: Aw: IR-blasting 455 kHz with the new upstream kernel modules gpio-ir-tx and pwm-ir-tx

Matthias Urlichs via LIRC-list <[email protected]> Mon, 3 Jun 2019 12:49:09 +0200
Newsgroups gmane.comp.hardware.lirc
Message-ID <[email protected]>
On 03.06.19 12:14, Bengt Martensson wrote:
> (Somewhere I have heard that an Arduino Uno/Nano (Atmel328p) CAN
> generate 455kHz in PWM, but I have not tried it myself.) 

That's correct: hardware PWM is reasonably flexible on these things if
you connect the IR output to the right pin.

That being said, the Raspberry Pi does have one hardware PWM which can
be used for this, assuming that you get the timing of turning that thing
on/off right. This should be possible with reasonable accuracy, using a
realtime-prioritized process if necessary.

-- 
-- mit freundlichen Grüßen
-- 
-- Matthias Urlichs