What I am talking about here is a Kindle analog of something like TeraTerm or Putty for the PC that will talk on the serial COM port (Kindle serial port) to a microcontroller TTL uart (e.g. send and receive characters). I have searched the forum and found numerous terminal references, but it seems that these do not have anything to do with the serial port and are more like the Windows commandline interface.
I am a rank beginner and somewhat overwhelmed with the knowledge base of the Forum. Pehaps I should re-phrase my question; what can you do with the Kindle serial port? Previously, I was looking at Android tablets for this functionality. Google Play has an APP called, "Slick 2 USB Serial Terminal",
https://play.google.com/store/apps/d...rialterm&hl=en
This App requires USB host to interface with a USB to serial adapter. I could not get it to work with a FTDI adapter after trying it on three different tablets that presumably had USB host capability. I didn't realize that Kindle had a serial port until I accidentally turned up a reference to it on this forum. I have found pinouts to the port, but no explicit references to it takling to the ouside world. Any links would be greatly appreciated.