Hi Folks,
Although I have stopped making the Die4Thing at the moment.... (mainly time and obsolescence issues) I am still supporting those who have bought one.
I have managed to come up with a simple way of adding an RS232 output to the Die4Thing using one of the open-drain MOSFET outputs normally used in temperature controller mode.
You need a 1k resistor, a 9 way female D type plug & a $20 JTAG programmer.
HEX firmware file & additional instructions are here:
http://www.die4laser.com/D4Thing/D4Thing-RS232.zip
Best regards,
Robin