Open Source

GitHub repositories for the source code and license information: https://github.com/swissmicros

SwissMicros Calculator Forum

Find answers, join the community: https://forum.swissmicros.com

Model DM42

User Manual

DM42 User Manual - Click here

Firmware Files

Download here

Firmware Update Instructions

Click here

External User Manuals

• HP-42S Owner's Manual [PDF]
• HP-42S Programming Examples and Techniques [PDF]
• Free42 Manual [PDF]

Model DM41X

User Manual

DM41X User Manual - Click here

Firmware Files

Download here

Firmware Update Instructions

Click here

External User Manuals

• HP-41CX Owner's Manual Volume 1 [PDF]
• HP-41CX Owner's Manual Volume 2 [PDF]
• HP-41C/41CV Owner's Handbook and Programming Guide [PDF]

Voyager Series (DM10, DM11, DM12, DM15, DM16, DM41)

User Manual

Voyager User Manual - Click here

Firmware Files

Download here

External User Manuals

Most HP Calculator manuals are available at Eric Rechlin's "HP Literature" site:
https://literature.hpcalc.org/

• HP-10C Owner's Handbook (1982/6.2MB) [PDF]
• HP-11C owner's manual and problem-solving guide (1985/11.4MB) [PDF]
• HP-12C user's guide (2005/1.7MB) , HP-12C solutions handbook (1.8MB) [PDF]
• ‍HP-12C Quick Start Guide (2008/0.7MB) [PDF]
• HP-15C Owner's Handbook (2011/3.8MB) [PDF]
• ‍HP15C advanced functions handbook (2012/3.8MB) [PDF]
• HP-15C Quick Reference (doc) [PDF]
• HP-16C Owner's Handbook (1982/13.6MB) [PDF]
• HP-16C Owner's Handbook (1982/2.1MB) [PDF]

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