HP15c CE Owner's Manual 2023

HP15c CE including Overlay 16c, Firmware change and Programming cable to avoid the DEC bug in HP16c feature, and change debouncing time from 80ms to 100ms to avoid double keys

Includes:

• HP15c Collectors Edition
• Overlay 16c for the NOMAS 16c feature
• Patching firmware to avoid the DEC bug in NOMAS 16c feature
• 100ms debouncing time
• Programming Cable

Overview

The HP 15C was a very popular RPN calculator from the 1980s (1982-1989) that, despite the last units rolling off the line over 30 years ago, is still highly sought after by collectors and users. After a long wait, the HP 15C is now being temporarily re-released as a Collectors Edition.

This special Collectors Edition comes in a nice storage box, including a printed manual like the one from 1984 with a foreword on the history of HP's calculators, written by Włodek Mier-Jędrzejowicz and Gene Wright.

Enhanced version of the classic HP 15c

After a 12-year hiatus, HP is reintroducing the popular HP 15c Scientific Calculator. This HP classic features a unique “Collector’s Edition” script, making it a great gift for collectors and engineers alike. The 15c offers users a high-end and portable, scientific calculator with programmable functions and built-in support for complex numbers, matrix math, numerical integration, and root solving, which makes this device one of the most capable calculators HP has ever made.

Intelligent design, powerful processing

The Collector’s Edition HP 15c maintains the same intelligent design as the original but touts up to 100x faster processing speed. Its compact size and lightweight metal frame allows users to conveniently carry the HP 15c from meeting to meeting. Unlike other scientific calculators, the HP 15c also offers an intuitive, horizontal interface, just like the original.

Rich set of advanced scientific features with more memory

The HP 15c is a powerful problem solver. Programming capabilities include conditional and unconditional branching, subroutines, flags, and editing. Plus, users can program up to 672 steps of calculations for rapid retrieval (increased from 448). The new 15c also offers Direct and indirect storage in up to 99 registers (increased from 67). This handy calculator operates using Reverse Polish Notation (RPN), reducing the number of keystrokes to complete your calculations.

There is 5% discount for 5 units or more, 10% discount for 10 units or more.

The overlay is NOT a HP product. It is used with non-manufacturer-supported features of the HP15c CE calculator. HP and its licensees are not responsible for its use and suitability for any application, and will not give support on its use - go instead to user webs like hpmuseum.org. The overlay is intended just for exploration of the calculator features, and it is designed and produced by The Calculator Store SLNE. There are known bugs in the HP16c mode.

IMPORTANT NOTE: The production units do not have protective plastic on the calculator surfaces, as shown in the video. This was only done on the 5 test units sent to us

B-Stock: small scratch(es) on bezel. Perfect keyboard. 20% discount on the price of the Enhanced version. 

HP15c CE including Overlay 16c, Firmware change and Programming cable to avoid the DEC bug in HP16c feature

Includes:

• HP15c Collectors Edition
• Overlay 16c for the NOMAS 16c feature
• Patching firmware to avoid the DEC bug in NOMAS 16c feature
• debouncing increased to 100ms
• Programming Cable

Test Overlay for HP Voyager calculators.

Overlay to test and analyze HP16 features. Made in flexible silicone and with labels in three colors.

This is NOT a HP product

The HP16c mode in HP15c CE is Not Manufacturer-Supported. HP and its licensees are not responsible for its use and suitability for any application, and for the bugs that may exist in non-supported modes. The user is solely responsible for the operation in non-supported modes.

This overlay is intended just for exploration of the calculator features and not for professional purposes, and it is designed and produced by The Calculator Store SLNE. The company makes no representation for the accuracy of calculations in HP16 mode, in particular due to the DEC display bug.

There is a 50% discount for HP15c purchasers at The Calculator Store, please contact us for the discount code at checkout

POGO pin programming cable for HP calculators: for HP12c (after 2015), HP15c Collector's Edition, HP10bII+. Not valid for HP12c before 2015, HP15c Limited Edition: they use a serial RS232 protocol while this cable is USB

With switch box with two push-on buttons for the ERASE and RESET functions. 

Requires SAMBA programming software (Windows only) to operate. You can download it here: 

https://ww1.microchip.com/downloads/en/DeviceDoc/sam-ba_2.16_windows.exe

For a detailed procedure to use it, please refer to this page: Flashing instructions:

In case of any doubt, please contact sales@thecalculatorstore.com. You can order with "Reserve Unit" as payment method

50% discount if you bought a HP15c Collector's Edition from us

We offer the flashing of new firmware for the 10bII+, 12c+, 20b and 30b.

These calculators have a port that allows the user to flash a new firmware. For that, a special cable is needed. The connector is in the battery bay.

Once the flashing has been done, the original firmware disappears. To be put back it needs to be flashed again. Hence the calculator guarantee is no more valid.

As there are several versions available at a given time, the customer has to supply via email the desired firmware to flash. The customer has to be aware that the firmware may contain bugs - of which TheCalculatorStore.com cannot be made liable. 

Please contact sales@thecalculatorstore.com for additional information

New, true leather case for HP Voyager calculators, including HP12c, HP12c Platinum, HP10c, HP11c, HP15c, HP16c calculators.

Note: this is not an original HP product.

The original Voyager calculators had a vinyl case that resisted quite well the passage of time - and that was designed to be kept in the jacket pocket. It also had the knitting "inwards so that it occupied the less possible space for a given volume.

Later versions (including anniversary units) have been made in false leather (called PE), which has a very low resistence to external scratches. There are several types but all of them in my possession have now a very bad aspect. For the current HP12c Platinum, the case is not even suited for jacket pocket, since it has very square corners

We have decided to create real leather cases that stand the passage of time, made with the same material that pocked cardholders and money holders are made. We have selected a manufacturer in Ubrique (Spain), famous for this kind of work. We sent to them the originals and the calculators that go with it, so that the case you have with you is not something similar that fits well - it has been expressly designed for your calculator

Please take a look also to the leather cases for Pioneer (HP17bII and HP42s types) and HP41c cases.

Leather cover set:

- Brown for HP17bII (all types)

- Black, brown and Bordeaux for Voyager calculators

Battery cover for HP12C (for 2 CR2032 battery model), 3D printed.

Valid also for HP15C Limited Edition only, HP12c Platinum

Not valid for HP12c 3-LR44 batteries, 11c, 10c, 15c original, 16c