For months a friend and I have been working on a replacement for the Sharp CE-158 RS-232 serial/parallel interface for the PC-1500 (TRS-80 PC-2). I just put the finishing touches on the enclosure, PCB are on hand and parts will be arriving next week. Note that the case is red as I was using up an old roll of PLA for testing. I'll post more updates in coming days.
I did a video of an earlier prototype last July.
I did a video of an earlier prototype last July.