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HomeElectronicsSimon Boak's SB116 is a TI Programmer-inspired DIY calculator

Simon Boak’s SB116 is a TI Programmer-inspired DIY calculator

Simon Boak’s SB116 is a TI Programmer-inspired DIY calculator

Arduino WorkforceSeptember thirteenth, 2022

Many sorts of calculators exist past these primary fashions that everybody utilized in elementary college. The most typical is the scientific calculator, together with the long-lasting Texas Devices TI-83. Programmer’s calculators comprise buttons and performance designed to assist with coding, with the flexibility to work in binary, hexadecimal, and different base programs and to carry out logic operations like XOR and AND. Simon Boak had a 45-year-old TI Programmer that was changing into unreliable, so he constructed his personal 16-bit integer Reverse Polish notation (RPN) calculator with an Arduino.

Boak’s SB116 programmer’s calculator very carefully mimics each the button format and performance of that outdated TI calculator. Essentially the most seen distinction is that the SB116 has a contemporary SSD139 driver-based 2.42” OLED show with a decision of 128×64, in distinction to the classic TI’s retro bubble LED display screen. The keypad appears to be like virtually similar to the unique, with the one different main exterior aesthetic distinction being the beautiful customized aluminum enclosure that Boak constructed. So as to add to the aesthetic, Boak even made an identical retail field that appears completely unbelievable.

The {hardware} elements for this calculator are minimal, because the Arduino can simply deal with the entire processing concerned. That’s a Nano, which connects to the OLED display screen and a customized keypad PCB that comprises 40 rubber dome buttons. The consumer can swap the ability provide between a USB port or a set of three AAA batteries. Boak’s Arduino sketches deal with the entire advanced performance of the calculator and even retailer picks when the calculator powers off, in addition to the register storage that one would count on from a programmer’s calculator. 

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