SwissMicros Calculator Forum

keithdalby wrote: ↑

Thu Apr 12, 2018 1:16 pm

Would it be possible for there to be a quick video tutorial so we know what we to bend and how much please?

I'll try making a video this weekend...

I'm sorry for this. Finally we nailed the problem with the ENTER button. The unequal tactile feedback is caused by the upwards bent ABS housing. Once the calculator is taken apart and warmed up a little, it can be bent back which should solve the issue. Please give it a try. Otherwise you can send i...

See http://www.swissmicros.com/nut_decoder/#help

Yep, that should works, see these videos:

https://www.youtube.com/watch?v=2sR_Ko15N2s
https://www.youtube.com/watch?v=ojsHNwaTXNQ

at the console enter the command "minicom -D /dev/ttyUSB0 -b 38400"
Then press '?' for help.

Please see https://www.swissmicros.com/License_Statement.php Dear SwissMicros customers, Thank you for your support in making DM42 come to fruition. We began development of the DM42 in 2015 followed by beta testing May 2017. We have been very fortunate to have a supportive community providing us wit...

Jeff O. wrote: ↑

Wed Mar 28, 2018 2:38 pm

Perhaps “Page Down” (Pg_Dn) and “Page Up” (Pg_Up) commands would also be helpful?

Thanks, it's on the list ...

A tact switch soldered to the board (compared to a dome directly applied) can't be so much more noisy ?? The concave metal dome snaps inside out when pressed. As I understand it, the ratio of the diameter to the hardness of the dome is in some relation to how noisy it is. HP used very large domes o...

Zaphod wrote: ↑

Thu Apr 05, 2018 11:52 am

But a (thin foam etc) sheet could be added to damp down any excess noise of operation perhaps.

Between what would you want to put anything like that in the DM42?

I have some surface mount dome switches here that you can't really hear, the dome is more or less exposed (Kapton film over the top) but on it's own substrate. It depends a lot on how everything is put together. Of course the switch is on a PCB in the end, but try putting a single one on a wooden s...