I’ve been looking at options for shipping to locations outside the United States. Wow, the choices are terrible! For comparison purposes, I’m assuming an 8 x 4 x 3 package that weighs 4.5 ounces (about 125 grams). I calculated hypothetical…
Watch this video on YouTube Here’s my long-overdue review of the Rigol DS1074Z four-channel oscilloscope, which I purchased a couple of months ago. At around $550, the DS1074Z occupies a unique place in today’s oscilloscope market between the $300 entry-level scopes,…
There’s a big difference between building one of something, and making a repeatable process to build 10 of them, or 100. Unfortunately I’m learning that the hard way while I try to get some more Floppy Emu boards ready to…
I finally got the new Floppy Emu revision 1.1 boards! Rev 1.1 has a few minor tweaks to prepare for selling assembled hardware. I built four of them with a soldering mini-marathon, and three of them work. The fourth I…
I’ve been aware of the Bus Pirate for several years, but never had a clear understanding of precisely what it is, beyond being a serial adapter of some sort. Its name suggests a black-hat hacking tool, or maybe something for…
I’m almost ready to start selling Floppy Emu hardware! My plan is to offer two options: a fully assembled and tested unit, and a “DIY kit” containing the PCB board, LCD, and DB-19 connector. These are the hardest parts to…
WOOOOO! Floppy Emu’s last big goal has been reached, and 1.4 MB disk emulation is now working! The photo shows a Mac Classic, booted into System 7.0 from a 1.4 MB high-density disk image. Combined with other recent improvements, this…
After nearly a year of inactivity, I’ve started work on Floppy Emu again! One of my first priorities was compatibility with Macs that have a 400K floppy drive – the original Mac 128K, and the Mac 512K (not the 512Ke).…
After fiddling with Nibbler’s hardware and fixing its glitches, it’s time to write some demo software. Let’s see what this little handmade 4-bit CPU can do! Sorry the quality on these videos isn’t the best – try changing the quality…
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