HP-25C Eumulator
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12-12-2014, 03:15 PM
(This post was last modified: 12-12-2014 03:31 PM by Chris Chung.)
Post: #111
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RE: HP-25C Eumulator
1st Batch V3 boards 10 units shipped this morning. Please prepare your own CR2032 battery as I am not allowed to ship them international.
V3 pcb list Extra board / 2nd batch list John, SlideRule, Brouhaha X2, PANAMATIK, Etienne, Lourens (7) The next batch will be 3-4 weeks away. I think I had forgot to place instruction inserts into a few of the packages so I will list it below. Both the HP-25 and HP-33 are loaded w/ a test program to perform 9, sin, cos, tan, arc-tan, arc-cos, arc-sin, goto 00 Start-up choice (press a button while turning power on) are as follows.
Quick edit.. Just want to add I had tested all units before shipping. And let me know if you find any problem. I had also update the source code in github. This version I loosen the timing for flashing memory (as in programming steps and the greeting messages) as I found that on lower voltage (depleting battery), the flashing is not 100% reliable. |
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