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https://github.com/chromeuniverse/esp32-calculator
An ESP32-based graphing calculator.
https://github.com/chromeuniverse/esp32-calculator
arduino calculator espressif
Last synced: 4 months ago
JSON representation
An ESP32-based graphing calculator.
- Host: GitHub
- URL: https://github.com/chromeuniverse/esp32-calculator
- Owner: ChromeUniverse
- Created: 2020-12-14T02:24:24.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2021-04-28T22:44:15.000Z (almost 4 years ago)
- Last Synced: 2024-10-17T06:47:36.964Z (4 months ago)
- Topics: arduino, calculator, espressif
- Language: C
- Homepage:
- Size: 402 KB
- Stars: 6
- Watchers: 2
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# ESP32 Graphing Calculator
A simple graphing calculator powered by the ESP32 SoC from Espressif.
Software built with the Arduino IDE and Espressif's [ESP32 Arduino Core](https://github.com/espressif/arduino-esp32).
The most recent iterations of the ccalculator's software are based on a [Math Parser/Evaluator](https://github.com/ChromeUniverse/Math-Parser) I've written in C++.
Created solely for educational purposes.
_Fun fact: roughly 3x faster than the Texas Instruments TI-84 Plus!_
## Hardware
* Generic ESP32 development board (any dev board should work)
* 1.77" 128x160 TFT LCD - ST7735S controller
## Libraries
* [Adafruit ST77xx library](https://github.com/adafruit/Adafruit-ST7735-Library)
* [Adafruit GFX graphics libray](https://github.com/adafruit/Adafruit-GFX-Library)
## Wiring diagram
Coming soon!
## Feature list
* Renders graphs of functions on the display
## To-Do
* Add a to-do lmao
## Photos
Functions shown below:
* Sine wave: y = 6 sin(x)
* Parabola: y = (0.6 x)3 - 5 x
* Cubic funcion: y = (0.8 x)3 - 5 x
Viewing window:
```
xmin = -10;
xmax = 10;
xscl = 1;
ymin = -10;
ymax = 10;
yscl = 1;
xres = (xmax - xmin)/tft.width();
yres = (ymax - ymin)/tft.height();
```
