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Hardware fft - with Kendryte K210 / Sipeed M1 dock
Log from VU-meter Esp8266 - WS2812B
This is a test of hardware fft with Kendryte K210 / Sipeed M1 dock.Using built in MEMS microphonecodehttps://github.com/MrJBSwe/fft_lcd

Programming Toolchain
Log from MIKBUG on Multicomp
There are some options for assembling 6800 code today. Ideally, a cross assembler would be good from Windows. Herb Johnson has adapted William C Colley III's A68 6800 cross-assembler. The A68 assembler runs in DOSBOX under Microsoft Windows. Output Format...

20230216b -- "Files"
Log from ROM Disassembly - AlphaSmart Pro
The gist of this unit is that you type text into a discrete 'file' and then you can edit and later transfer to a separate computer via the keyboard emulation. While whizzing through the code doing other things, various strings caught my eye, such...

Starting with the ESP8266
Log from Wireless remote LCD
This is a big question, where to start with the ESP8266. There is the official SDK path, for the brave. There is the Arduino, Espruino... Well, I tried NodeMCU. Starting with this page https://nodemcu.readthedocs.io/en/master/, there is a lot explained...

Keep up to date with Stack-chan on Twitter
Log from Stack-chan - JavaScript driven super-kawaii robot
This project has official twitter tags, #stackchan and #ｽﾀｯｸﾁｬﾝ（JP）.You can follow these tags for getting latest update including:Release announcementsMy daily development progressWorks...

More SD Card Write Details
Log from 3-Chip Z80 Design
Had to dig into the FPGA code for the SD card. Using Neal Crook's documentation of Grant Searle's version (longer pedigree on the page). The status register values are: // SD_Status bit values from Neal Crook's documentation of Grant's SD card // b7...

The Story So Far-- Explodophone 1.0 Part 2
Log from The Explodophone
Now for the other half. For maximum starting flexibility without taking the cost too high, I opted to go two octaves, using notes found on the white piano keys only, i.e., notes with only letter designations and no sharp or flat symbols. This means I...

SD Card Assembly Language Code
Log from OSI SD Card Operating System (OSISDOS)
Minimal SD card code in C: /* OSISDOS.c - Minimal Operating System for OSI C1P/SuperBoard ][ */ /* SDHC card based disk operating system */ /* 8KB Microsoft BASIC-In-ROM has I/O support routines */ /* CEGMON has various hooks to the I/O in BASIC */ /*...

20230219a -- File Sending Speed
Log from ROM Disassembly - AlphaSmart Pro
While whizzing through the keyboard stuff, there is some special handling of some keystrokes. This is by scan code, so it's difficult for me to puzzle out what they are. One exception, though, is for setting the 'send speed'. There...

Debugging
Log from 8 Bit TTA Interpreter
Debugging Need to get this project working. One problem is that the Nano does not have enough pins. So I have used a Meduino (a Mega2560 Pro Mini). Here is the schematic: Here is the PCB: The ports (P1 & P2) match the TTA8 bus. A problem with the Meduino...

Updates to Boot Menu on PSoC
Log from 3-Chip Z80 Design
It's been a while. I plugged in the board USB and forgot how to run it. I even forgot which button I needed to press on the front panel to get Multiboot to run. This Hackaday page helped me remember. Glad I made it. Decided to add hints to the PSoC...

The First Prototype - Body
Log from Hexapod esp32-cam robot
The first part was remove the Head and arms of the toy cause they weren't match to the aesthetics that i wish for the project: Fully Assemble toy The head removedAfter that i gave it a primer painting, the first ideia was give it a black painting after...

Draft Bus Layout
Log from Retro rack and backplane computer
Here is a draft bus layout - 1 +5V +5V 2 +12V +3.3V 3 4 5 6 } 18 pins for other signals 7 8 9 10 11 12 REFSH RESET 13 M1 CLK 14 INT NMI 15 BUSRQ BUSAK 16 HALT WAIT 17 MREQ IORQ 18 RD WR 19 A14 A15 20 A12 A13 21 A10 A11 22 A8 A9 23 A6 A7 24 A4 A5 25 A2...

Asteroids #4 - Ship control, lasers and collisions
Log from Merlin
So we have a ship rotation using keyboard controls. I just rotated the vectors in excel and added them to an array, the same with the thruster vectors which are drawn twice with additive blending to increase brightness. The bullet is a simple point in...

Board NEDONAND-6
Log from NEDONAND homebrew computer
NEDONAND-6 is 8 multiplexers 2:1 with common control (straight select and inverted select):Board already ordered through OSHPark:Pins description:1.1) GND - ground 1.2) O0 - output of multiplexer 0 1.3) O1 - output of multiplexer 1 1.4) O2 - output of...

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