---
title: "Graphite"
author: "somebody else"
description: "a custom graphing calculator"
created_at: "2025-05-24"
---

# Total Time Spent: 5 hours

# May 24: (researching parts)

all I did today was research parts that I'll need and made a BOM.
I'll do more on monday.

BOM at time of writing:

![](https://github.com/thelegendofmario/graphite/blob/main/.github/bom.png?raw=true)

**Total Time Spent: 30 minutes**

# May 26: did more researchin' lol

Today, I just did more reasearching parts and I got kicad libraries for a few things I need:

![](https://github.com/thelegendofmario/graphite/blob/main/.github/kicadlibs.png?raw=true)

**Total Time Spent: 1 hour**

# June 02: FINALLY BACK 🎉

Today I finally got around to working on this for a little bit, and I got the screen in the schematic FINALLY wired! I also decided not to have a battery on this iteration of the design.

![](https://github.com/thelegendofmario/graphite/blob/main/.github/wiringtft.png)

**Total Time Spent: 1 hour and 21 minutes**

# June 03: Finished schematic!

Today I wired the button matrix! I might do some later today, (like assign footprints) but otherwise I'm done with the schematic🎉


![](https://github.com/thelegendofmario/graphite/blob/main/.github/finishedschematic.png)

> finished schematic ^^

**Total Time Spent: 2 hours**

# June 09: Finished Routing

Today was a big day. Today I finally got around to finishing assigning footprints to things and routing the pcb!
(this took about 2 hours. I didn't realize how tedious routing was lol)

![](https://github.com/thelegendofmario/graphite/blob/main/.github/routing.png)

> ^^ finished routing ^^

![](https://github.com/thelegendofmario/graphite/blob/main/.github/pcb.png)

> ^^ finished pcb ^^

**Total Time Spent: 4 hours and 5 minutes**

# June 16: Finished case

today I made/finished the case for my pcb, I decided to go ultra-simple instead of a complicated case 🤷

![](https://github.com/thelegendofmario/graphite/blob/main/.github/casetop.png)

![](https://github.com/thelegendofmario/graphite/blob/main/.github/case%20bottom.png)

**Total Time Spent 5 hours**