fxKeyboard

Use fx-9860 series calculator as a keyboard for computer.

WARNING: THIS TOOL MAY DAMAGE YOUR CALCULATOR OR COMPUTER. ALWAYS FOLLOW THE DOC AND I WILL NOT BE RESPONSIBLE FOR ANY DAMAGE.

Usage

Use FA-124 software to copy the Add-in to your calculator.
Use the LINK app in calcutor menu to connect the calculator to your computer.
READ NOTICE BEFORE THIS STEP! Download Zadig from here. Open Zadig, click Options - List All Device, select CESG502, and replace the original driver with WinUSB.
Open the Add-in in your calculator. It will automatically connect to your computer. If you didn't plug the USB cable, it will exit after a short time.
Open the fxKeyboardLink software in your computer. Now you can use your calculator as a keyboard for your computer.

Some special keyboard mapping:

Calculator Key	Computer
OPTN	Switch between arrow mode and cursor mode
Arrow keys	Arrow keys in arrow mode and cursor controller in cursor mode
θ	Text: theta
EXIT	ESC
QUIT	ESC
∠	<
sin-1	Text: arcsin
ab/c	/
CAPTURE	PrintScreen
CLIP	Ctrl + C
PASTE	Ctrl + V
DEL	Backspace
INS	Insert
÷	/
π	Text: pi
EXE	Enter in arrow mode and click in cursor mode
EXE with SHIFT	Enter with Shift pressed. This is convenient for using Mathmetica

This tool will automatically open the NumLock in your computer.
Once your use Zadig to replace the original driver, you can't use FA-124 to link your calculater. If you want to get back to the original driver, follow Zadig's FAQ here carefully. You need to know that the USB device is CESG502.
If you can't connect your calculator to your computer in any way, try to restart your calculator by the button behind.

Press the calculator key down continously will not work like that in your computer. The reason is that I only used GetKey function in this Add-in.
In cursor mode, the cursor moved slowly in a constant speed.
I would be glad if someone can fix the issues above.

Thanks Simon Lothar for his great work in syscall.

Software	Tool
Add-in: fxKeyboardAddin	fx-9860G Software Development Kit
Win32: fxKeyboardLink	Visual Studio 2019 with libusb-1.0