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DIY open source calculator

Project status

This project is currently suspended. This project is currently suspended. This project is currently suspended.

ArithMax Overview

ArithMax is an DIY calculator project which was launched by ZephRay(nbzwt) in cnCalc forum. Our original intention is providing a open and high performance handheld calculator.

Hardware

The hardware of ArithMax has been changed several times, now we have one branch: ArithMax E(entry)

ArithMax EV3P:

  • CPU:STM32F407
  • RAM:192KB
  • ROM:1MB
  • Screen:COG FSTN 96*31 with status
  • Keypad:PEP-290 keypad
  • IO:JTAG SW-DP,TF Card,USB