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tcpser
Hayes modem emulator applicationUltiMem64
Commodore 64 Internal RAM Expansion with integrated MMUxpander-3
Commodore 64/SX/128 4 port passive cartridge port expanderZoomFloppy
Commodore IEC/IEEE disk drive to USB interfaceNu6509
Emulate a 6509 with a 6502Nu6510
65(C)02 to 6510/8500 converterTurboMaster
Reverse Engineering of the Schnedler Systems 4MHz TurboMaster accelerator cartridge for the Commodore 64Nu7501
65(c)02 to 7501/8501 converterc-key
23XXAdapter
MOS 2316/32/64 to JEDEC 27XX(X) AdapterCocoFLASH
Tandy Color Computer CocoFLASHSimple64Cart
Simple EPROM-based C64 and C128 cartridge PCB designs64NIC
Commodore 64 Network Interface CardHEXTIr
TI HEX-BUS SD Drive InterfaceTurboCPU
2364Adapter
MOS 2364 to JEDEC 27XX(X) AdapterEAGLE_lbr
Various EAGLE libraries I am usingCoCoMEMJr
2MB RAM Expansion for the TANDY Color Computer 1 and 2 and the Dragon computersDRAMCarrier
An 8 4164 to 2 4464 conversion PCB for various Commodore 64 motherboardsNu8500
65(c)02 to 8502 converterFlashPak
512kB FLASH ROM Cartridge for the TANDY Color Computer and Dragon Data Dragon System2564Adapter
MOS 2564 to JEDEC 27XX(X) AdapterCoPro09
6X09 Coprocessor system for the Commodore 64/1282732Adapter
JEDEC 2732 to JEDEC 27XX(X) AdapterEasyFlash3
A fork of skoe's EF3 codebase to merge in changes through the yearsPhilharmonic12
Reproduction of the Speech Systems Symphony 12 multi-voice sound cartridge for the TANDY Color ComputerNu6550
Modern replacement for the MOS 6550 1kbx4 SRAM6540Adapter
MOS 6540 to JEDEC 27XX(X) Adapter6500Dump
MOS 6500/1 Microcontroller ROM ReaderFake6523
MOS 6523 TPI (Tri Port Interface) CPLD replacementDigiMAX
A 4 channel 8-bit external DAC for the Commodore 8-bit line23128Adapter
MOS 23128 to JEDEC 27XX(X) AdapterVIC-MIDI
Commodore VIC-20 MIDI/RS232/RAM/FLASH cartridgePLAdapter
Simple EPROM-based PLA emulatorNu2031
Enable a Commodore CBM 1541 disk drive to also function as a CBM 2031LP IEEE drivePETKey
Commodore VIC/64 KB to PET/CBM AdapterFake6500-1
Atmel ATMEGA162 to MOS 6500/1 ConverterNu6551
Atmel AVR uC 6551 implementationIEEEAdapter
Commodore .156" 12/24 IEEE to Centronics 24 connector adapterCC40_RAMCart
512kB Battery Backed RAM Cartridge for the TI CC-40CoCoSDCExt
Additional functionality for the Color Computer CoCoSDC cartridgeDual6X09
Dual 6X09 Adapter Schematic and Printed Circuit Board v1.0Masc-uerade
A simple interface that (might :-) allow 64 cartridges to be used on the Commodore VIC-20SuperPET_OS9_MMU
TPUG OS9 MMU ReproductionC2NPower
CoCoQuadLink
4 port TANDY Color Computer RS232 PakUltiMEM
8 Megabyte FLASH ROM/1 Megabyte SRAM VIC-20 Memory ExpansionMIDIMaestro
TANDY Color Computer 1/2/3/Dragon MIDI InterfaceTwoMegCoCo
TTL logic, SRAM based 2048kB (2MB) RAM expansion solution for the TANDY Color Computer 3DrivePlexer
34 pin floppy drive multiplexer (convert discrete DRV1,2,3 to binary drive address)ROM-el
ROM eliminator FLASH ReplacementuIEC-bootloader
FAT16/FAT32 bootloader for Atmel AVR MEGA based uIECHexBusAdapter
TI HexBus <-> DockBus AdapterQuadPortIEC
CoCoLink
IntUltiMEM
Internal version of the UltiMEM cartridgePowerLED
A multi-purpose power LED replacementXtender-Coco
TANDY Color Computer/Dragon cartridge port extenderPhantomRAM
HEXTIr-bootloader
Fork of uIEC-bootloader for HEXTIr Atmela MegaAVR-based HexBus storage deviceCC40_ROMCart
512kB Multi-Bank ROM Cartridge for the TI CC-40Dual6X03
HalfMegCoCo
An SRAM-based 512kB RAM Expansion for the TANDY Color Computer 3BoomerangLED
Quick interrupt driven util to drive the Color Computer 3 Boomerang 2MB memory expansion DAT board LEDMAX-6566-Adapter
Minimized layout of Christian Forstreuter's 6566->6567 Adaptertcpser4j
Java version of tcpser, the Hayes modem emulatorLove Open Source and this site? Check out how you can help us