10/2026
Palm OS 6 Cobalt on a Tungsten T3, Part 2
Palm OS Cobalt 6.1 runs on a real Palm Tungsten T3, loaded from an SD card into RAM with Cocoboot and a small shim. Ten...
Palm OS & Retro Computing
Ein digitales Archiv für PDA-Projekte, Linux-Experimente und Hardware-Hacks – seit 2019 mit Leidenschaft dokumentiert.
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10/2026
Palm OS 6 Cobalt on a Tungsten T3, Part 1
Palm OS 6 Cobalt never shipped on a device. Then a native Cobalt 6.1 ROM for the Tungsten T3 turned up in the image pack...
10/2026
“f*ck you palm :P” - The story behind Lemmings for Palm OS
How Aaron Ardiri squeezed Lemmings onto a 16 MHz Palm in 2001: bitmaps in write-protected memory, a MIDI engine in ARM c...
10/2026
Lemmings in HiRes+ on the Tungsten T3
Aaron Ardiri's Lemmings already runs at 320x320 on Palm OS 5, but on the HiRes+ devices the input area takes the rest of...
10/2026
The first scenes of The Secret of Monkey Island on the Arduboy FX
A tiny point-and-click engine on an 8-bit console with 2.5 KB of RAM: the first scenes of The Secret of Monkey Island, b...
09/2026
DateFix: Keeping a Palm Alive After December 31st, 2031
Palm OS stops counting on 31 December 2031. DateFix moves the start of the calendar from 1904 to a year you choose, on P...
09/2026
The Secret of Monkey Island on a STM32F429I-Discovery
ScummVM ported to a Cortex-M4: Monkey Island runs completely on the STM32F429I-Discovery, with touch control, AdLib musi...
09/2026
Decoding the Veo Camera for Palm OS
The Veo camera for Palm OS stores its pictures in an undocumented format. Seven months of reverse engineering later, a s...
03/2026
Building Palm OS Applications on macOS (Apple Silicon)
Complete Palm OS development environment for macOS ARM - build native 68K and ARM apps with a single command. Includes p...
03/2026
A Native HotSync App for macOS
Installing Palm OS applications from a current Mac: pilot-link built for Apple Silicon and a small menu bar app that bri...
01/2026
HP Vectra 386/33N graphics memory upgrade to 1MB
The onboard S3 86C801 of the HP Vectra 386/33N only has 512KB of video memory. Four Fujitsu ZIP DRAMs in the empty socke...
01/2026
Siemens Nixdorf PCD-4NL Display swap
A Siemens Nixdorf PCD-4NL with a scratched Hitachi display: a fern-like pattern inside the old panel, a Sharp LM64P83 as...
03/2025
Installing a Tseng Labs ET4000 for 70Hz at 640x480 or 800x600 in Windows 3.11
Stuck at 60Hz in Windows 3.11? Get your Tseng Labs ET4000 running at a crisp 70Hz with these steps.
03/2025
Setting up a Samba-Server for Windows 3.11 and macOS 15.2
Windows for Workgroups 3.11 only speaks SMB1, macOS 15 only SMB2/3. A Samba server on a Fujitsu Futro S900 with Debian 1...
02/2025
Fixing a humming subwoofer
My Altec Lansing subwoofer hummed because of its transformer. Since the amplifier runs on DC anyway, an old 16V IBM note...
01/2025
Unlocking the BIOS on a Colani HighScreen BlueNote II After Battery Replacement
Replaced the BIOS battery in a Colani BlueNote II and got locked out? The secret AMI backdoor password might save you.
12/2024
Replacing leaking Ni-Cd backup batteries
Old Ni-Cd backup batteries leak and destroy boards - like on my Amiga 500 memory expansion. How to replace them with a C...
12/2024
Fixing a broken flex cable
I slipped and tore the flat flex cable to the trackball of my Siemens Nixdorf PCD 4ND. Sandpaper, a file and eight piece...
12/2024
Fixing a red stripe in an old Display
Red vertical stripes on the TFT of a Siemens Nixdorf PCD 4ND: a few seconds of hot air on the chip-on-film connections m...
12/2024
Fixing a broken Toshiba 440CDT
A leaked BIOS battery, a blinking Caps Lock LED and POST code 05H: how a 20-year-old LPT board, a multimeter and one pat...
05/2024
Setting up an old 386 computer
Building a 386 DOS gaming rig in 2024: AMD 386DX-40, Tseng Labs ET4000AX at 70Hz, an MT-32 on an MPU-401 card, and a Jaz...
03/2023
Roland RA-50 to MT-32 mod with an MPU-401 card for MS-DOS
How my Roland RA-50, which I modified to an MT-32 myself, plays the music for DOS games on my 386 via an MDR-401x MPU-40...
02/2023
Upgrading a Sound Blaster AWE64 Value from 512KB to 2MB
Upgrading the sample RAM of a Sound Blaster AWE64 Value (CT4500) from 512KB to 2MB with a 1Mx16 EDO chip from a 72-pin S...
06/2022
Installing Ubuntu 22.04 on a Lenovo Thinkpad T61p
Ubuntu 22.04 on a ThinkPad T61p with Nvidia Quadro FX 570M? The nouveau driver fails, but there's a fix with legacy driv...
05/2022
How to run POSE in a Docker-Container on Mac OS X
POSE won't run on modern Macs? A Docker container solution makes it possible - even on Apple Silicon M1 chips.
05/2022
How to rescue a LifeDrive by replacing a dead MicroDrive
Your LifeDrive MicroDrive crashed? Replace it with a CF card and bring your Palm back to life - faster and more reliable...
02/2022
5V 500mA Switching Circuit
How to switch 5V at 500mA with a microcontroller - no relay required. A simple circuit with a transistor and MOSFET.
02/2022
Installing Ubuntu Desktop 21.10 on Software-Raid 0
No NVMe slot? No problem. Three SATA SSDs in RAID 0 on a Lenovo T440p - here's how to set it up with Ubuntu.
02/2022
Wireless Internet Connectivity for the Palm m100
A Palm m100 goes online in 2024 - first via cable, then wirelessly. PPP, ESP8266, and a lot of patience made it happen.
07/2021
A microcontroller for Palm m100
A D1 mini microcontroller meets a Palm m100. But 12V serial signals and wrong wiring made this project surprisingly tric...
07/2021
Powering a Palm m100 with a LiPo battery
Convert your Palm m100 from AAA batteries to a rechargeable LiPo with USB charging - detailed hardware mod guide.
05/2021
Charge and Sync with a USB-only-Dockingstation
Ditch the charger! Modify your Palm docking station to charge via USB 3.0 - works with all Universal Connector Palms.
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02/2021
Automatically Turn On the Backlight
Tired of manually enabling backlight on your Sony Clie S3x0? This tiny app turns it on automatically at startup.
06/2020
Compiling and building Palm-OS-Applications on Ubuntu 20.04 LTS (64 Bit)
Compile Palm OS apps on Ubuntu 20.04 with modern GCC 9.1 - includes ready-to-use dev packages and POSE emulator.
06/2020
Bluetooth Communication with Palm OS (Part 2/2)
Display sensor data on a Palm via Bluetooth! Complete ESP32 setup and Palm OS app development guide - Part 2.
06/2020
Bluetooth Communication with Palm OS (Part 1/2)
Build a temperature and humidity monitoring system with ESP8266, DHT22, and a PHP server - Part 1 of 2.
04/2020
Using more than 2 GB in a Sony Clié with Palm OS 5.x
Break the 2GB limit on Sony Clies! Use Memory Sticks up to 64GB with the FAT32 driver and MicroSD adapters.
03/2020
Upgrading a Palm LifeDrive with a 128GB CF-Card
Replace your slow Palm LifeDrive microdrive with a fast 128GB CompactFlash card using PowerDrive - step by step.
01/2020
Fixing the backlight of a Palm Vx
Fix your Palm Vx backlight issue by replacing the faulty HV826MG IC - complete guide with voltage values and tips.
01/2020
A Mp3-Player for old Palm OS devices - Part 2/2
Learn how to build a custom connector and control an MP3 module with a Palm m100 via serial communication.
12/2019
A Mp3-Player for old Palm OS devices - Part 1/2
Turn your vintage Palm into an MP3 controller! This guide covers the DFPlayer Mini basics and Arduino integration.
11/2019
Serial Communication with Palm OS - Part 4/4
Running Windows XP for retro development? Learn how to use jSerialComm with Eclipse to receive serial data from your Pal...
11/2019
Serial Communication with Palm OS - Part 3/4
Connect your Palm to a Java application! Set up RXTX on Ubuntu and build a serial reader to receive data from Palm OS de...
11/2019
Serial Communication with Palm OS - Part 2/4
Use jpnevulator to sniff serial data from your Palm on Linux. A simple command-line approach to capture and display tran...
11/2019
Serial Communication with Palm OS - Part 1/4
Send data from your Palm via serial port! Complete source code for a working Palm OS serial communication application.
10/2019
3D-Rendering of a Palm Pilot
From basic shape to photorealistic render: Follow the journey of creating a 3D Palm Pilot 5000 in Blender 2.8.
06/2019
Compiling and building Palm-OS-Applications on Ubuntu 18.04 LTS (64 Bit)
Build your own Palm OS apps in 2024? Yes! Learn how to set up prc-tools-remix and compile a Hello World application on U...
06/2019
Installing POSE (Palm OS Emulator) on Ubuntu 18.04 LTS (64-Bit)
The POSE deb package is broken, but there is a clever workaround. Get the Palm OS Emulator running on Ubuntu with this f...
06/2019
Sony Clié NX73V Display-Change
Got a broken Sony NX73V display? Learn how to swap it with a working one from a spare unit in this detailed teardown gui...
05/2019
rePalm auf einem STM32F429I installieren
Palm OS auf moderner Hardware? Diese Schritt-für-Schritt-Anleitung zeigt, wie sich rePalm auf ein STM32F429I-Board flash...