https://github.com/lennarthennigs/casio2ftdi

Schematics for a Casio FX-880P port to FDI Adapter (for data transfer).
https://github.com/lennarthennigs/casio2ftdi

casio casio-calculator casio-computers electronics fx-850p fx-880p pcb serial-communication

Last synced: 8 months ago
JSON representation

Schematics for a Casio FX-880P port to FDI Adapter (for data transfer).

• Host: GitHub
• URL: https://github.com/lennarthennigs/casio2ftdi
• Owner: LennartHennigs
• License: mit
• Created: 2022-02-07T20:19:41.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-08-04T11:51:38.000Z (about 3 years ago)
• Last Synced: 2024-12-30T04:41:23.933Z (10 months ago)
• Topics: casio, casio-calculator, casio-computers, electronics, fx-850p, fx-880p, pcb, serial-communication
• Homepage:
• Size: 14.2 MB
• Stars: 6
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

README

          
Casio2FDTI Connector

====================

This is a small PCB that allows you to connect a CASIO FX-850P/FX-850P via an FTDI USB cable to your computer (Win or Mac).

* Author: Lennart Hennigs (https://www.lennarthennigs.de)

* Copyright (C) 2021-2022 Lennart Hennigs.

* Released under the MIT license.

Description

-----------

This GIT contains the Fritzing source file and the Gerber files that allow you to get your own PCB. You'll also find the bill of material for the PCB and some more details.

Below is a picture of the completed PCB:

![casio with pcb](result.png)

As you can see, I used SMD components (805) on the PCB. They are large enough to be soldered by hand. They are a few resistors and LEDs to show activity on the RX/TX lines.

Bill of Materials

----------------

- 1 x SMD805 green LED (RX)

- 1 x SMD805 blue LED (TX)

- 1 x SMD805 50 Ohm Resistor (R1)

- 1 x SMD805 0 Ohm Resistor (R2)

- 2 x SMD805 1K Ohm Resistor (R3)

- 1 x 2-row right-angle 1.27mm pitch header (2x15 pins)

- 1 x the PCB (e.g. ordered via [JLCPCB](https://jlcpcb.com/))

- 1 x FTDI FT232RL USB to TTL cable (e.g. [this one](https://www.ebay.de/itm/273461345989))

**Note**: The PCB needs to be **1.2mm thick**. Otherwise it will not fit into the connctor slot.

Details

-------

*TBD*

![fritzing pcb view](fritzing.png)