Okay, I was thinking last night about a possible mod, and have some questions.My idea was to use an old VU meter or analog voltage meter as a processor usage meter to put on the front bezel of my ...

I have a bunch of Kenwood TK-2100 VHF radios that are re-programmable via the serial port. I have a DOS-based application that works with the radios, but is only reliable with computers with two ...

But the problem is that an RS232 serial port operates with 12V logic levels and the JTAG side of the programmer needs to operate with the logic levels native to the device you’re programming.

The Plan The plan is simple enough. A Linux program listens to a real serial port and watches for special character sequences in the data stream.