997 Results for "《〈 문의 OIO↗5793↗7458 》〉 셔츠룸후기た《〈 문의 OIO↗5793↗7458 》〉 ⑷plenty㎋셔츠룸후기셔츠룸후기んteeth 셔츠룸후기선릉셔츠룸 강남셔츠룸￦셔츠룸ⓤsilverⓞ"

Calcy's great uncle, and project updates
Log from Vintage Z80 palmtop compy hackery (TI-86)
look at that wonderful VFD! Well, shoot, I took the batteries out, and they've since fallen well out of reach. You'll just have to take my word for it, that's a nice little Vacuum Fluorescent Display. $2.99, how could I pass it up?! Half of me wants...

TI-CBL
Log from Vintage Z80 palmtop compy hackery (TI-86)
Back in college physics I'da never thought owning a CBL would be in my future! Working on #Z80 Reverse-Engineering And Hacking Adventures, I had a weird epiphany... Ordering some chip sockets to solder in to the empty ROM and RAM slots, I came across...

Interfacing Dial Indicator to Computer (using PIC Chip)
Log from Digital Dial Indicator CNC Surface Probe
To convert the low voltage (~1.3V) custom protocol output by the dial indicator to something that will be readable by the computer I have chosen to use a PIC microcontroller. Specifically, I will be using a PIC12F1822 because it's cheap, small, well...

Nixie drive voltage supply
Log from State-Based Nixie Digital Voltmeter
Tail-end of last year we were working on a nixie tube clock project. It ended up getting stalled by some other stuff, but while Novak was working on the microcontroller code I was grinding out a power supply and drive circuits. For drive circuitry we...

Ethernet Success
Log from Cat-644
I was considering using an ethernet to serial converter, and using an AT command protocol to connect to the ethernet. Realizing this would tie up the only serial port, I didn't want to do that: Bridging ethernet and serial may be one area where such...

Final bits
Log from Reflecting the sun into your home
Ok we need some way to detect how many rotations the shaft makes, a CPU board, and a Real Time Clock (RTC). We should have some Flash memory as well to store our data points.Photo-Interruptor CircuitAn easy way of detecting shaft rotation is by using...

On DIY
Log from Weird CPU
On DIYHaving successfully designed and built a reasonable complex project (a TTL computer) I would like to make some suggestions to those who are considering doing the same.If your a genius then you make your own rules and don't need to consider my learnings.The...

Random syncing thoughts
Log from Floppy-bird
Part of me has gained quite a bit of interest in trying to implement this thing (at least read-back) with discrete logic, like TTL/7400-series. Sync: There's no reason it has to be the same duration as a PWM-nibble. 4us seems better to me. The key concept...

Power Supply Design
Log from Novasaur CP/M TTL Retrocomputer
The remaining instability in the Rev. 1 board is down to power issues. The power distribution was deliberately underspecified to highlight problem areas and test different designs. There are two main areas of concern: inductance and current consumption....

Initial steps
Log from Raspberry Pi I2C Interfacing
2020-10-27 Ordered modules to play with: AZDelivery ADS1115 ADC Analog to Digital Converter 16bit 4-Channel Module (pack of 3)AZDelivery I2C 0.96-inch OLED Display SSD1306 128x64 Pixels IIC 3.3V 5V White Character DisplayAZDelivery MCP23017 16-bit Bidirectional...

Initial thoughts...
Log from Project: MillRACE
Overall In this project, I am not going for full Jupiter ACE compatibility. I'd like to work toward it, but there is no way I'l be able to complete it by the end of October. My challenge is to run the official ROM, not every single demo! :)...

Interfacing a GPS
Log from Repurposed wifi controller as GPS-based NTP server
Of course, Debian cannot get GPS messages from the sky without a GPS module. Since we want to discipline the NTP/kernel accurately, we need a GPS module with a PPS (pulse per second) output. USB modules should be avoided because of delays that can...

Casing + TTL-fail.
Log from Improbable AVR -> 8088 substitution for PC/XT
It's time to case-up the 8088 system so I can reclaim my coffee/dinner-table. (I found this motherboard in a "scrap PCB's" box. Amazing it survived all those years of storage, nevermind the countless diggings-through-those-boxes!).I've settled on an...

DDL Demo Board and Simple Examples
Log from The Diode Clock
Since the Diode Clock is fairly large and complicated, I wanted a smaller example to demonstrate how simple diode logic gates really are. The result was the DDL demo board (shared here on OSH Park). The design files (Eagle schematic and board files...

VFD success ("good enough for now" milestone)
Log from Repurposing an Accom Axial Control Panel
# VFD daughter board I probably don't need to investigate this too much as it is a stock component; a NEC FC40X2EA-AB with 2 lines of 40 characters and a serial interface. I just wanted to include the pics for you. VFD daughter board, back I have not...

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