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31 lines
1.7 KiB
Markdown
31 lines
1.7 KiB
Markdown
# Graphite: Custom Graphing calculator
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## What is this?
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This is a custom-made graphing calculator built off of the [Rasberry Pi Picos](https://www.raspberrypi.com/products/raspberry-pi-pico/).
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There are a couple of reasons I chose this board:
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1. they're cheap, and easy to get a hold of.
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2. if a new one (with the same form factor and compatible pinout) comes out, you can swap it out, giving you a more powerful cpu, more storage, etc.
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## But _Why_ did you make this?
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I made this because this is my first ever PCB and thing like this. _Also_, I really wanted to fix some things that I found wrong with the TI-84s and such.
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## Bill of Materials:
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PCB components:
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| Name | Buy Website | Price | Notes |
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| --- | --- | --- | --- |
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| 2.2" TFT LCD | https://www.adafruit.com/product/1480 | $24.95 | Just have to use a generic 10 pin thingy 🤷 |
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| Rasberry Pi Pico | https://www.adafruit.com/product/4864 | $6.00 | |
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| Buttons | https://www.mouser.com/ProductDetail/Omron-Electronics/B3F-1000?qs=lK7M36XCk6JQHckSc1xIsg%3D%3D | $0.25 | (that's for one, gets cheaper the more you buy yay) |
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| male headers | https://www.adafruit.com/product/392 | $4.95 | |
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| 10 pin female headers | https://www.sparkfun.com/header-10-pin-female-pth-0-1.html | $0.80 | |
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| 20 pin female headers | https://www.adafruit.com/product/4155 | $2.50 | |
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| | Total | $39.45 | |
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---
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> project images
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