Summary of Arduino wooden RPN calculator
This article details a DIY project by Shiura to build a custom RPN calculator using a CNC machine. The device features a walnut wooden case, an acrylic screen protector, and Arduino Nano hardware. It utilizes a numeric keypad for input and is powered by AA batteries via a DC-to-DC converter. The calculator supports standard arithmetic as well as trigonometric, logarithmic, and exponential functions accessible through hidden key presses.
Parts used in the Wooden RPN Calculator:
- CNC milling machine
- Wooden billet case (walnut)
- Acrylic screen protector
- Arduino Nano microcontroller board
- Numeric keypad keyboard
- LCD display
- AA batteries
- DC-to-DC converter
- Silver function key
If you are interested in building your very own RPN calculator you might be interested in a new project published to the Instructables website this week by member Shiura. Using a CNC machine, the calculator has been constructed using a wooden case together with acrylic screen protector, and a little Arduino hardware. Featuring an Arduino Nano microcontroller board and the keyboard from a small numeric keypad the LCD display the calculator is powered by a set of AA batteries through a DC-to-DC converter.
“I bought a CNC milling machine and made a wooden RPN calculator. Not only the billet wood case but also PCB and acrylic window are machined by CNC.”
Wooden RPN calculator
“RPN (Reverse Polish notation) is a method for writing or entering mathematical calculations wherein operators come after operands. For instance, to calculate the product of 3 and 4, you would type: 3, enter, 4, enter, multiplication. “
– A RPN (Reverse Polish Notation) calculator of billet walnut case. There are multi-functional RPN calculators with numbers of small keys. However, daily use RPN calculators with large and light touch buttons are rare. So I made it by my own.
– This calculator also has trigonometric, logarithmic and exponential functions. It is hidden but appears on the LCD as function key style by pressing the silver key (or long press of keys).
– Comfortable and traditional look made from wood billet.
For more information about the project and details on how you can build your very own, jump over to the official project page on the Instructables website by following the link below.
Source: Arduino wooden RPN calculator
- What is Reverse Polish notation?
RPN is a method where operators come after operands, such as typing 3, enter, 4, enter, multiplication to calculate a product. - How is the calculator powered?
The device is powered by a set of AA batteries connected through a DC-to-DC converter. - Can the calculator perform trigonometric functions?
Yes, it includes trigonometric, logarithmic, and exponential functions accessible by pressing the silver key or long pressing keys. - What material is the calculator case made from?
The case is constructed from a billet of walnut wood machined by a CNC mill. - Which microcontroller board is used in this project?
An Arduino Nano microcontroller board is used to run the calculator logic. - How are special functions accessed on the device?
Functions appear on the LCD as key styles when the user presses the silver key or performs a long press of other keys. - Where can I find instructions to build this project?
Instructions and details are available on the official Instructables website page for the project. - Does the calculator have large buttons?
Yes, the creator designed it with large and light touch buttons for daily use, unlike many small-keyed multi-functional models.
