An interface for Apple's LocalTalk networking protocol.

An interface for the DCD protocol used by Apple's Hard Disk 20.

Improved FW for the DL4YHF frequency counter (higher frequency resolution down to 0.001 Hz due to period measuring mode; extended frequency range up to 100 MHz; event counter) as well as DL4YHF's original source code adapted for Linux "gpasm".

Firmware for PIC16F88/87 as a drop-in replacement for the Macintosh SE's stock ADB controller.

Firmware that emulates a trio of devices for Apple's ADB bus: a keyboard, a mouse, and a modem.

MPLAB X v.6.0 - XC8 PIC ASSEMBLER (pic-as) porting of DL4YHF Frequency Counter project based on PIC16F628A (0 - 50Mhz)

An adapter to make a Super Famicom/NES controller appear to an ADB Macintosh as a Gravis GamePad.

Clone of the Farallon MacRecorder and Apple MIDI Interface.

A protocol analyzer for the Apple Desktop Bus (ADB).

An adapter to connect a PS/2 keyboard to a Macintosh Plus/512k/128k.

A host for testing Apple Desktop Bus (ADB) devices.

An adapter to connect a PS/2 mouse to a Macintosh Plus/512k/128k.

A home plant watering device based on a simple 6-pin PIC microcontroller and 74HC chips.

Clone of BeeHive Technologies's ADB I/O.

A tiny AppleTalk (ATP) stack for 8-bit PICs.

A test device for the Apple Desktop Bus (ADB).

Macintosh and Apple IIgs video sync signal converters/generators for PIC10F320.

An ADB power relay controller and PS/2 keyboard interface for Macintosh computers without soft power.

A protocol analyzer for Macintosh Plus/512k/128k keyboards.

PIC16F1704 firmware to interpret and analyze the output of the Macintosh's IWM/SWIM chip.