joska wrote:It should work fine on the Teensy 2.0++ according to vfrvulcan. I have not tested it myself but I don't see why it shouldn't work. Maybe your ++ is faulty.
Some things to try:
1. Unplug the mouse from the ST keyboard.
2. I don't think the ST keyboards have pull-up resistors on the Tx/Rx lines. These are located on the ST motherboard. Try adding a pull-up resistor to the Teensy Rx pin (1k resistor from Rx to 5V).
Powering the keyboard from the Teensy would normally not be a problem, unless there is something wrong with the USB port/cable/Teensy/keyboard.
roninfourseven wrote:So, no joy with the pull up resistor on the right side, is it worth trying it on the tx side?
Methanoid wrote:Would it be possible to insert the Teensy in the signal line (sorry, poor use of language) so that the ST keyboard still sends signals to the ST but if you DIDNT power the ST and plugged the USB connector to a PC it would become a USB keyboard only?
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