Hi Greg,
> Because we shouldn't plug directly into the GPIO ports. Yes, I know we > do, but we shouldn't. We need to match voltage, restrict current and > ideally fully isolate the signal. The engineer that designed your amp > would have never imagined it would be directly connected to the GPIO > pins of a CPU. Your buffer may have this option. An SSR DOES do all of this and is more likely to do it without blowing up a IO output than any "buffer circuit" most people could manufacture. As you don't seem to know, an SSR only has a constant current limited LED as the IO driven device. And the designer of my amplifiers DID design it to be controlled from a logic output TTL or CMOS as do many others. Jeff *Players:* SliMP3,Squeezebox3 x3,Receiver,SqueezePlayer,PiCorePlayer x3,Wandboard *Server:* LMS Version: 7.9.0 - 1453293926 on Centos 7 VM on ESXi 6 on HP N54L *Plugins:* AutoRescan/BBCiPlayer/PowerSave/PowerSwitchIII/Squeezecloud *Remotes:* iPeng8/Orangesqueeze/PC/Jivelite *Music:* 383GB,1269 albums 17756 songs 4381 artists mostly FLACs *Want a webapp ?* See http://forums.slimdevices.com/showthread.php?104305-Webapp-for-LMS ------------------------------------------------------------------------ Jeff07971's Profile: http://forums.slimdevices.com/member.php?userid=49290 View this thread: http://forums.slimdevices.com/showthread.php?t=105018 _______________________________________________ unix mailing list unix@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/unix
