Shared Projects by ruthsarian

This is a PS/2 to Mac Plus mouse adapter. It uses an ATtiny806 to convert the data stream and button events between the two. The code to support this adapter can be found on my github repository.

• The microcontroller is an ATtiny806 in a VQFN package.
• The 10u and .1u capacitors are in a 0603 package.
• The PS/2 adapter is a Kycon KMDGX-6S-BS
• The RJ10 jack is an Amphenol D09P33E4PA00LF
• The code for this project is based on glitterkitty’s Arduino-PS2-Mouse-to-Amiga-Adapter project.

This adapter may also work with a Mac 128, 512, and Apple Lisa.

This is a PS/2 to Mac Plus keyboard adapter. It uses an ATtiny806 to convert the scan codes between the two. The code to support this adapter can be found on my github repository.

• The microcontroller is an ATtiny806 in a VQFN package.
• The 10u and .1u capacitors are in a 0603 package.
• The PS/2 adapter is a Kycon KMDGX-6S-BS
• The RJ10 jack is a Wurth Elektronik 615004143821
• The code for this project is based on trekawek’s mac-plus-ps2 project.

The RJ10 cable that connects the adapter and keyboard must be a pass-through cable like what was used with the original keyboard. RJ10 telephone handset cables, while they fit the RJ10 jack, are crossover cables. You would need to cut and re-crimp one end of such a cable in order to make it work with this adapter. Otherwise you risk damaging your Mac and this adapter.

You may find some sellers on eBay who produce such cables specifically for the Mac Plus. Alternatively you could make one yourself (as I did) with these items:

• Telephone Handset Cord 2-Pack
• Transparent RJ9 Telephone Cable Plug
• Multifunction Ratcheting Crimper for Web and Phone

NOTE: RJ9, RJ10, and RJ22 are all basically the same thing. They are all 4P4C (4 Position 4 Conductor) connectors and will fit the Mac Plus and this adapter.

This PCB replaces the low-frequency antenna PCB for Proxmark3 Easy devices. It includes footprints for soldering a coil to the board as well as footprints for 2.54mm pitch headers and an SMA connector. It also has footprints to include through-hole or SMD resistors and capacitors to help tune and attenuate the antenna.

A simpler version of this PCB, without the extra footprints, is available here.

NOTE: I am not an RF wizard. I do not know what the RF implications of these extra footprints, especially if populated, are. Will they cause interference? Will they degrade the signal? Will they create RF noise in surrounding electronic devices? I do not know. However I have assembled one and it seemed to work fine so…

This PCB is designed to be a custom identity chip for Tron Lightcycle Run devices that accept identity chips. A 150mil SOIC-8 SPI flash memory chip (i.e. Winbond W25Q16BV) should be mounted upside down into the center hole of the PCB.

The 0805 100nF (.1uF) capacitor and 10k resistor are located to act as the tab to pull on when removing the chip from its socket. 0603 components will also fit those pads.

This PCB has been tested only in an identity disc bluetooth speaker.

This is a blank, low frequency antenna PCB for the Proxmark3 Easy. You will need to source an appropriate antenna for it. The 0805 surface mount pad is for adding capacitance and/or resistance to help tune the antenna as needed.

The stock PM3 has about 3.2nF of capacitance across the antenna. If your coil had an inductance of about 350uH then another 1nF capacitor would help tune it to about 125kHz.