[HN Gopher] Controlling Marantz amplifier using Arduino via "Rem...
       ___________________________________________________________________
        
       Controlling Marantz amplifier using Arduino via "Remote" socket
        
       Author : zdw
       Score  : 26 points
       Date   : 2021-07-07 21:30 UTC (2 days ago)
        
 (HTM) web link (smallhacks.wordpress.com)
 (TXT) w3m dump (smallhacks.wordpress.com)
        
       | betamaxthetape wrote:
       | Sony equipment use to have a way of doing this as well, via the
       | S-Link[1] / Control-A1 bus on stereo equipment (and some video
       | equipment too, I believe). There's a handy Arduino library[2] for
       | doing this - a couple of years ago I added support for the dual
       | cassette deck I have, although the PR hasn't been merged yet. I'd
       | also be remiss if I didn't mention the Slink-e [3], a commercial
       | product that seemed to be very capable (unfortunately it is now
       | discontinued).
       | 
       | In fact, these protocols are (I believe) more capable than a
       | regular "Remote" socket since they allow bi-directional
       | communication, meaning you can both send commands to the
       | equipment and request data from them. But it's been a while since
       | I've looked at them in detail.
       | 
       | Also, I recall being confused by the several (seemingly
       | incompatible) systems offered by Sony: S-Link, Control-A1 and
       | Control-A1 II.
       | 
       | [1] http://www.brian-patti.com/s-link/
       | 
       | [2] https://github.com/Ircama/Sony_SLink
       | 
       | [3] http://www.nirvis.com/slink-e.htm
        
       | tyingq wrote:
       | An 1/8 inch mono jack for remote control is somewhat common, but
       | there's no broadly accepted standards for the protocol. So what's
       | described here (RC-5) probably only works for Marantz and a few
       | other brands. Other brands may have their own way of doing it.
       | Here's a blog post on Pioneer's way of doing it, which they call
       | "SR": https://blog.eikeland.se/2012/09/09/pioneer-sr-link-
       | control/
        
       | luma wrote:
       | Check out the ESPhome project[1], now part of the Home Assistant
       | universe. It makes creating ESP32 projects a breeze and has
       | native IR transmit capabilities. This will let you tie the device
       | into Home Assistant which bring integration with nearly
       | everything. You get a great mobile interface, automation engine,
       | and hooks to nearly every smart device currently being sold.
       | 
       | [1] https://esphome.io/components/remote_transmitter.html
        
       | Animats wrote:
       | Is it in-only, like IR remotes, or can you get info out?
        
       | pjs_ wrote:
       | Love it - I dream of an alternate universe in which IoT was done
       | with infrared, RCA jacks, and 8 bit microcontrollers instead of
       | JSON, Docker and billion-transistor SoCs.
       | 
       | I have a raspberry pi set up with an infrared LED to control my
       | old NAD amplifier. It's from the time period where no stereo
       | amplifier was complete without a motorized volume knob, so the
       | knob physically turns when I control it from my phone over HTTP -
       | to me this is much cooler than a touch screen or voice control :)
        
       ___________________________________________________________________
       (page generated 2021-07-09 23:00 UTC)