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# PicoCalc – Open-Source Graphing Calculator # PicoCalc – A cost-effective MCU platform that lets you develop applications using your favorite programming languages.
**PicoCalc** is an open-source graphing calculator powered by **Raspberry Pi RP2040**, designed and developed by **ClockworkPi**. It provides a versatile platform for learning, programming, and expanding functionality through hardware and software modifications.
- features an SPI screen, SD card slot, integrated onboard 8MB PSRAM, dual PWM speakers, 3.5mm phone jack and 18650 lithium battery charge & discharge management, providing the system with ultra-long battery life.
![picocalc](https://github.com/clockworkpi/PicoCalc/blob/master/wiki/PicoCalc.png) ![picocalc](https://github.com/clockworkpi/PicoCalc/blob/master/wiki/PicoCalc.png)
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## 📌 Features ## 📌 Features
- **RP2040-based** graphing calculator with open-source firmware. - **RP2040-based** with open-source firmware.
- **Expandable hardware** with SPI/I²C/UART for external peripherals. - **Expandable hardware** with SPI/I²C/UART for external peripherals.
- **Support for Micropython & C/C++ development** using the Raspberry Pi Pico SDK. - **Support for Micropython & C/C++ development** using the Raspberry Pi Pico SDK.
- **Customizable keypad & UI**, allowing users to modify functionalities. - **Customizable keypad & UI**, allowing users to modify functionalities.