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Big Dan is passionate about computers, electronics, and photography, sharing insights on his blog.

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The blog post details the restoration of several historical text-based adventure games, including Adventure, Thisala, and Ferret, onto a Data General (DG) Nova Minicomputer simh emulation. The author describes the process of insta...
The blog post recounts the author's journey to modify and run the classic text-based game Adventure on the HP 1000 computer system, detailing its historical significance and the modifications made by various programmers over the y...
The blog post discusses the author's experience running the last known version of the Adventure game on the HP 1000 computer system. It provides a historical overview of the game's development, including contributions from various...
The blog post details the process of transferring files to and from a SIMH HP 1000 emulator, focusing on methods for ASCII and binary file transfers. It discusses using QCTerm for terminal emulation, configuring connections, and h...
The blog post details the process of installing the KERMIT file transfer program on the HP 1000 using the Contributed Software Library (CSL) hosted by the University of Stuttgart. The author explains how to create a SIMH compatibl...
The blog post details the author's experience with accessing files in the HP 1000 system using Fortran 77. The author explains the limitations of the FMGR file system and the need to link specific libraries ($FNEWF and $FMP6) to a...
The author shares their experience of porting their phone number from Google Voice to Callcentric using an Obihai 202 ATA. They discuss the history of Obihai, its acquisition by Polycom and HP, and the termination of the OBITalk m...
The SparkFun RJ-45 break-out board for Teensy 4.1 simplifies Ethernet setup, but requires the QNEthernet library instead of the standard Ethernet library for proper functionality.
The post discusses a common issue with changing call forwarding settings on Android phones, specifically when Wi-Fi calling is enabled. The author shares a personal experience of encountering a 'Call Settings Error' and provides a...
The text discusses the affordability and functionality of inexpensive electronics test gear for hobbyists. It provides recommendations for multi-meters, component testers, oscilloscopes, logic analyzers, and spectrum analyzers, al...
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The text explains how to configure Linux Mint to access clone Nanos and upload code from the Arduino IDE. It also covers how to update the Nano bootloader to the latest version. The author shares the procedure to recognize the CH3...
The author describes the issues he has been having with his Honda lawn mower and the steps he took to fix it. He replaced the thermowax actuator and removed some putty from the hole, which solved the problem.
The author discusses the HP 15C Scientific Calculator, a collectors edition released in 2023, and the availability of emulators for the HP 15C and HP 16C calculators. The author expresses a desire to add the HP 15C Collectors Edit...
The text discusses the development of a driver for the Canaduino 60kHz WWVB clock receiver breakout board, focusing on the interrupt routine for the Teensy 3.x or 4.x microcontroller. The author explains the process of finding the...
The author attempts to receive the WWVB time signal to set the microcontroller's clock, but is unable to receive a readable signal. Instead, they find an android app that can emulate the signal using the phone speaker, which works...
The text discusses the process of assembling and testing a WWVB receiver from CanAduino, including the challenges faced and the steps taken to overcome them. The author also shares their experience with the device and provides an ...