MORE FLAGS!!! WUT?! The remaining flags were sprinkled throughout the internet, the badge, and other places throughout the year. Here's what you may have found or missed...I Found code: PCB QR Code Go ahead scan it...see what happens... Found code:...
"Shower Concerns" -- so called because they often come to you whilst in the shower. I had a few come to me today: Propeller nuts. I've got opposite-pitch propellers that are mounted 180 degrees off from each other, so the motors will be rotating in opposite...
Development Day 34-start of flat rotor selection logic-couple of bugs when returning rotor to box or returning from plugboard when flat rotor is visible-Rotor type/position goes correctly from upper or lower box to center-need to delete it from the top...
When I started extending Dr. C.H. Ting's STM8EF with board support (e.g. the venerable W1209) I wrote low level HW abstractions in assembly code, taking full advantage of the STM8 instruction set (e.g. bit set/reset operations, memory-to-memory moves)....
Two posts ago our CPU was demonstrated connected to an Arduino to provided memory-mapped I/O. This MMIO space could hold code, other board-level I/O functions or perform functions on the host PC. The 'memory' area of this MMIO space was slow - each access...
8 weeks in and the CPU is running, although it's not doing anything useful yet. The initial task was to get all the timing circuits in place and measure the performance of the system. Only 10 chips are needed to implement the clock circuit, program counter,...
Various available fluids found online that may be appropriate for hydraulics: Pentosin CHF 11S: Viscosity (40C): 18.7mm2/sViscosity index: 313SDS indicates 68649-11-6 1-decene dimer hydrotreated (also used as a skin product, grinding oil, etc.)Recommended...
Quadrature encoder interface (QEI) does exactly what is in the name - provides an interface for quadrature encoders. The used dsPIC has two such interfaces. My encoder is Faulhaber IE2-16 and is mounted to a small DC motor. This encoder has a resolution...
With just a flash in mind, being not a professional and starting from zero, after 3 weeks of search and learn, the bus architecture design for A1 finally came out. At the very first beginning, project AOZORA was targeted to implement the Ibex RISC-V...
Tiny 4-bit CPU with 4-bit input and output ports. Like the #TD4 CPU but a bit more capable.Connect the output port to a SSD1306-style OLED display. These can be driven via SPI which would be simple enough.Have it do something non-trivial - I love...
While whizzing through the code, I did notice an interesting 'set cursor position' call to set it at the end of the screen (at position 159, or 9Fh). Once set, the character 0x0f is sent. The datasheet for the LCD indicates that 0x0f is a...
It's off. It's gone. It's in the mail. Somewhere between Pennsylvania and California is the travelling box of hacker crap.A few changes: I needed to use the Large flat rate box. The Harbor Freight box was unexpectedly out of spec and didn't fit in the...
This one might get... technical. I will probably share the light version in a future video. TL;DR - I made a better PS/2 interface but got greedy while optimizing. Let's start off with a success.. I did it! I actually did it! I got rid of...
The Nixie Driver IC I am going to use is a K155ID1, which is a Russian clone of the SN74141.Using good ol' Google, I found plenty of old Datasheets that helped me figure the (hopefully!) definitive pin-outs needed to correctly connect the IC. Together...