Search found 12 matches

by MikeD
Sat Feb 12, 2022 1:52 am
Forum: Software Library
Topic: PCB trace computations according IPC-2221 standard
Replies: 10
Views: 3789

Re: PCB trace computations according IPC-2221 standard

Frank,
Thanks a bunch! I grabbed, installed and tested your RC, LC, dBm2VRMS, dBm2dbuV, R//R, Z//Z. :D
-Mike.
by MikeD
Fri Feb 11, 2022 2:22 am
Forum: Software Library
Topic: PCB trace computations according IPC-2221 standard
Replies: 10
Views: 3789

Re: PCB trace computations according IPC-2221 standard

Frank, Re: "The only suggestion is to change the height to oz of copper, as we always link of copper in the PCB layers as 1oz, 1/2oz, 2oz... Actually, I kinda like the thickness as is rather than oz, Seems the definition of an oz of copper is not really standard so it's best to get the copper t...
by MikeD
Thu Feb 10, 2022 8:20 pm
Forum: Software Library
Topic: PCB trace computations according IPC-2221 standard
Replies: 10
Views: 3789

Re: PCB trace computations according IPC-2221 standard

Works perfect now! with Internal, external, different temp rise. The only suggestion is to change the height to oz of copper, as we always link of copper in the PCB layers as 1oz, 1/2oz, 2oz...

This is great! thank you for sharing!
by MikeD
Thu Feb 10, 2022 8:07 pm
Forum: Software Library
Topic: PCB trace computations according IPC-2221 standard
Replies: 10
Views: 3789

Re: PCB trace computations according IPC-2221 standard

Also, I think you meant to say remove lines 28 and 29, not 28 and 20.
by MikeD
Thu Feb 10, 2022 8:00 pm
Forum: Software Library
Topic: PCB trace computations according IPC-2221 standard
Replies: 10
Views: 3789

Re: PCB trace computations according IPC-2221 standard

Yes. I removed the lines you posted that leave it in Mils. Let me try the new code. Thank You!
by MikeD
Wed Feb 09, 2022 9:04 pm
Forum: Software Library
Topic: PCB trace computations according IPC-2221 standard
Replies: 10
Views: 3789

Re: PCB trace computations according IPC-2221 standard

I did, 1st select external, then the data I got back did not seem to come close to some of the online TW calculators with the same inputs and units. SO then I did the same for and internal trace and that is when I got the endless loop.
by MikeD
Wed Feb 09, 2022 7:05 pm
Forum: Software Library
Topic: PCB trace computations according IPC-2221 standard
Replies: 10
Views: 3789

Re: PCB trace computations according IPC-2221 standard

Frank,
converted and loaded. Seems to either give me a non-existent when I enter 3 and ask for the 4th or runs an endless loop?
-Mike.
by MikeD
Tue Sep 21, 2021 12:04 am
Forum: Hardware issues
Topic: Upgraded keypad
Replies: 168
Views: 51588

Re: Upgraded keypad

I got my upgraded DM42 keyboard!!!!

(Sold my old DM42 on Ebay for $140 and bought a new DM42, so it costed ~$100 I think). Very happy with the new Calc. :D
by MikeD
Tue May 25, 2021 1:09 am
Forum: Discuss!
Topic: New DM42S hardware
Replies: 49
Views: 25455

Re: New DM42S hardware

I don’t understand the obsession with the color of the key/letters. I don’t either really. As long as they are clear and legible it’s fine. I don’t like garish colors though in general. For me the problem is that the secondary functions are more visible than the main ones with such a vivid yellow t...
by MikeD
Fri Nov 02, 2018 11:24 pm
Forum: Hardware issues
Topic: Keyboard debouncing
Replies: 71
Views: 60102

Re: Keyboard debouncing

I have the same problem, every now and then, I hit the #3 key and it doubles. It is very rare so I don't worry to much about it. I did turn off the fast auto-repeat.