Re: Raspberry PI: Bypassing IR TX/RX

[Bengt M. <bu...@be...>]

On 2020-03-15 14:25, Rajendra Panchal via LIRC-list wrote:
> Hello LIRC Group Members:
> 
> I am revisiting this group after a long time(2015 or so). So please 
> pardon me if this is not the right address for the request.
> 
> I am successfully using RPI3B+ to transmit IR code to a connected device 
> IR receiver, both inside an enclosure; so directly wire-able to bypass 
> the IR TX/RX HW with a simple wires from GPIO.

You want to send "IR signals" without modulation. In principle simple; 
you just put

frequency 0

in your lircd.conf. However, not all components can handle non-modulated 
signals though. (lircd only since 2015: 
https://sourceforge.net/p/lirc/tickets/132) Make sure that you are using 
a driver that can handle unmodulated signals; I do not know the status 
of the current RPi stuff. ("My" driver 
https://github.com/bengtmartensson/lirc_rpi definitely does, but is not 
compatible with current kernels.)

Greetz,

Bengt