I re-downloaded the Teensy Loader, and used it to install Fast blink and then when that was in and blinking, slow blink. Ok, so the Teensy ++ is connected to the PC and is communicating with the teensy loader.I downloaded the latest build of Arduino, now (1.8.9 )Checked libraries again and still no sign of teensy boards, so am unable to tell the arduino software that a teensy board is on the end of the USB cable.I am really certain that I found Teensy under examples in its own group following the arduino listings examples... well its aint there on my windows 10 PC. The adafruit playground is there... Any help Paul would be very appreciated. Let me know what you want in the screen shot, I'm in UK so go to bed around 11 pm, about 45 minutes after posting this.Cheers.
Hi, Yes, I have downloaded the current teensy loader ( see one of my replies) and the latest copy of the arduino software (see above reply). Board is Teensy++ and loads fast blink and then slow blink from the teensy loader, so now I'm flummoxed.