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authoruser@node5.net <user@node5.net>2025-08-03 01:00:06 +0200
committeruser@node5.net <user@node5.net>2025-08-03 01:00:06 +0200
commit93c10851318eebf547f4a77f31a3029331520b14 (patch)
tree69b8be790bef1152c58750d7ad16ce742420135f /Miscellaneous
parentf5bbe606770a4327535e459f106bd4a7158eb6e0 (diff)
Flat structure, delete various half completed
Diffstat (limited to 'Miscellaneous')
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-rw-r--r--Miscellaneous/64x64 HUB 75 LED Matrix/index.md136
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-rw-r--r--Miscellaneous/LCD writing tablet functional principal/index.md44
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-rw-r--r--Miscellaneous/Sharp memory display/index.md43
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diff --git a/Miscellaneous/64x64 HUB 75 LED Matrix/Chip 1.webp b/Miscellaneous/64x64 HUB 75 LED Matrix/Chip 1.webp
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+++ /dev/null
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----
-description: "Me documenting my 64x64 LED matrix display"
-created: 2025-03-11
----
-
-![Main](Main.webp)
-
-## Display documentation
-
-### From Aliexpress seller
-
-[64x64 Indoor RGB HD P3 Led Module Video Wall High Quality P2.5 P4 P5 P6 P7.62 P8 P10 Panel Full Color Display - Aliexpress.com](https://www.aliexpress.com/item/32757647402.html)
-
-Key                       | Value
-------------------------- | -----------------------------------
-Item                      | P3
-Chip                      | Epstar
-Chip size                 | Red 9 mil, Green 12. Blue 12mil
-Light type                | SMD2121
-Pixel Pitch               | 3mm
-Module Size               | 192mmX192mm
-Module Resolution         | 64 X 64 (dots)
-Density of pixel          | 111111dots/m2
-Pixel configuration       | 1R1G1B
-Red wavelength            | 625±2nm
-Green wavelength          | 525±2nm
-Blue wavelength           | 470±2nm
-Colors                    | 16777216
-Best viewing distance     | ≥2m
-viewing angle             | 120°/90°
-Maximum power consumption | 20W
-Brightness                | 1500cd/m2
-Gray scale                | 14bits per color
-Color temperature         | 6500k
-Control method            | Synchronization or Asynchronization
-Driving method            | 1/32 scanning
-Frame frequency           | 60Hz
-Refresh frequency         | ≥600Hz
-Working Voltage           | DC5V
-IP grade                  | IP54
-MTBF                      | More than 8000hours
-Life Span                 | 80,000hours
-
-
-### Chips
-
-1. CHIPONE `ICN74HC245TS` `A14276CA`
-2. `MBI5124GP` `A3YN72CTHB`
-3. `RUC7258` `8W913170`
-
-![Chip 1](Chip&#32;1.webp)
-![Chip 2](Chip&#32;2.webp)
-![Chip 3](Chip&#32;3.webp)
-
-### Display IN connector
-
-![In left](In&#32;left.webp)
-![In right](In&#32;right.webp)
-
----
-
-## Micro controller wiring
-
-I use an [ESP32 WEMOS LOLIN S2 Mini](https://docs.platformio.org/en/latest/boards/espressif32/lolin_s2_mini.html)
-which has an ESP32-S2F chip on it
-
-![ESP32-S2F_chip](ESP32-S2F_chip.webp)
-
-Display in wiring
-
-```
-    ┌────────┐
-R1  ┤  1  40 ├ G1
-B1  ┤  2  38 ├ N
-R2  ┤  4  36 ├ G2
-B2  ┤  6  34 ├ LE
-LA  ┤  8  21 ├ LB
-LC  ┤ 10  17 ├ LD
-CLK ┤ 13  15 ├ LAT
-OE  ┤ 14   ⏚ ├ GND
-    └────────┘
-```
-
-![ESP32 S2 Mini](ESP32&#32;S2&#32;Mini.webp)
-
----
-
-## PCB Connector board
-
-The screen glitches unless you have a solid connection.
-
-This PCB is a straight connection, except the gnd which is flipped with the adjacent pin.
-
-![esp32_display_pcb_top_plugged_in](esp32_display_pcb_top_plugged_in.webp)
-![esp32_display_pcb_bottom](esp32_display_pcb_bottom.webp)
-
-Half the display glitched out, untill i added a 100pf capacitor between `lat pin` and `gnd`
-as per:
-<https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA/issues/130#issuecomment-867116753>
-
----
-
-## Software
-
-<https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA>
-
-```c++
-#define R1_PIN   1
-#define G1_PIN  40
-#define B1_PIN   2
-#define R2_PIN   4
-#define G2_PIN  36
-#define B2_PIN   6
-#define A_PIN    8
-#define B_PIN   21
-#define C_PIN   10
-#define D_PIN   17
-#define E_PIN   34 // required for 1/32 scan panels, like 64x64px. Any available pin would do, i.e. IO32
-#define LAT_PIN 15
-#define OE_PIN  14
-#define CLK_PIN 13
-
-HUB75_I2S_CFG::i2s_pins _pins={R1_PIN, G1_PIN, B1_PIN, R2_PIN, G2_PIN, B2_PIN, A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, LAT_PIN, OE_PIN, CLK_PIN};
-HUB75_I2S_CFG mxconfig(
-	64, // Module width
-	64, // Module height
-	1, // chain length
-	_pins, // pin mapping
-);
-dma_display = new MatrixPanel_I2S_DMA(mxconfig);
-```
-
----
-
-I'm still experiencing some glitching, especially on the lower half of the display,
-albeit a better PSU made the problem go away for static sketches, plasma still struggles.
diff --git a/Miscellaneous/Casio watch NFC rainbow film mod/Casio rainbowfilm nfc mod.jpg b/Miscellaneous/Casio watch NFC rainbow film mod/Casio rainbowfilm nfc mod.jpg
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----
-description: Modded casio wrist watch with NFC and colorful watch face
-created: 2023-12-18
----
-
-![Casio rainbowfilm nfc mod](Casio&#32;rainbowfilm&#32;nfc&#32;mod.jpg)
-
-I modded a Casio W59 with Dichroic film rainbow film and a 2x1 cm NFC sticker, and some crunched up aluminum foil
-
-Parts:
-
-- Dichroic film
-    - [aliexpress.com - Holographic Clear Window Film](https://www.aliexpress.com/item/1005005620190266.html)
-    - [velken.shop -  Rainbow color effect film, cold, transparent](https://www.velken.shop/p/rainbow-color-effect-film-cold-transparent/)
-- [aliexpress.com - NFC Chip Ntag 213 Sticker 13.56MHz RFID Size 2*1cm](https://www.aliexpress.com/item/1005006220591444.html)
-- [aliexpress.com - Adhesive polarizer](https://www.aliexpress.com/item/1005004269567641.html) note, it's important to get the sticky kind
-
-NFC sticker tutorial video tutorial: 
-
-[youtube.com -  CASIO F-91 NFC MOD - DIY F91W NFC Tag Implant ( Easy Modification )](https://www.youtube.com/watch?v=aGn2_zP8GI8)
-
-Inverted display video:
-
-[youtube.com -  More Casio Watch Mods (Inverted and Translucent LCD) ](https://www.youtube.com/watch?v=EsO-i5nS1z0)
-
-![Inside](Inside.jpg)
-![W59 modded front](W59&#32;modded&#32;front.png)
diff --git a/Miscellaneous/Cyberdeck/Thumbnail.jpg b/Miscellaneous/Cyberdeck/Thumbnail.jpg
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----
-description: "Computer"
-created: 2023-03-08
----
-
-I want to build a cyberdeck, but isn't that just a weird cumbersome laptop... yes, that's not the point, think of it more as a weird retro inspired electronic simi functional experimental piece of art.
-
-![Main](main.jpg)
-![Back](back.jpg)
-
-Back will house all the electronics and when the screen is lifted it's shown, i'll add an acrylic plate, which will help guide airflow from the fan through the device.
-Will start with a Raspberry Pi, since that's what i have on hand, might change it out to a different SBC with proper NVME support instead of booting of an SD card, or USB adapter.
-
-## Ideas:
-- Screen: Ultra wide screen IPS, smaller e paper display.
-- Keyboard: Custom split ergonomic mechanical keyboard with trackball in the middle.
-- Pointing device: Rollerball mouse + thinkpad like 3 buttons.
-- Modular, expandable, with standard mounting interfaces, and electrically with ports ex. i2c expansion.
-- Internal temperature on i2c.
-- Modern retro vibe with vent slits.
-- All PCB's in the back mounted to an insert plate, to avoid having to re-print the case.
-
-## Inspiration / resources:
-- [Cyberdeck cafe](https://cyberdeck.cafe/mix/what-is-a-cyberdeck)
-- [keyboard-layout-editor.com](http://www.keyboard-layout-editor.com/)
-- [A Complete Guide to Building a Hand-Wired Keyboard](https://www.crackedthecode.co/a-complete-guide-to-building-a-hand-wired-keyboard/)
-- [Power monitoring](https://www.youtube.com/watch?v=Qkx9M-AzznE)
-- [OpenSCAD Keycap generator](https://www.thingiverse.com/thing:2783650/files)
-### Cool cyberdecks:
-- [Skeletal Cyberdeck](https://cyberdeck.cafe/mix/skeletal-cyberdeck)
-- [TRL](https://cyberdeck.cafe/mix/trl-22121)
-- [GRIZ](https://cyberdeck.cafe/mix/griz)
-- [MSG](https://cyberdeck.cafe/mix/msg)
-- [TTSD-3085](https://cyberdeck.cafe/mix/ttsd)
-- [midknight8008](https://www.thingiverse.com/thing:4939019)
-
-## Parts:
-- [Waveshare 10.4inch QLED Display 1600×720](https://www.waveshare.com/10.4hp-capqled.htm?sku=24646)
-- [Waveshare 3S 5V 5A Output with i2c monitoring](https://www.waveshare.com/ups-module-3s.htm)
-- [Trackball Breakout by Pimoroni](https://shop.pimoroni.com/products/trackball-breakout)
-- [Flat HDMI cable](https://www.aliexpress.com/item/4000014554460.html)
-- [1N4148 Diodes for keyboard switches](https://www.aliexpress.com/item/1005005435418695.html)
-- [Adafruit KB2040 - RP2040 Kee Boar Driver](https://www.adafruit.com/product/5302)
-- [Adafruit SHARP Memory Display Breakout - 2.7" 400x240 Monochrome](https://www.adafruit.com/product/4694)
-- Keyboard switches
-- Big ON/OFF switch
-- External antenna
-
diff --git a/Miscellaneous/Cyberdeck/main.jpg b/Miscellaneous/Cyberdeck/main.jpg
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----
-description: "Lantern featuring facets to reflect light"
-created: 2025-03-02
----
-
-![Inspiration shell printing](Thumbnail.webp)
-
-Found this sick 3D model for a lamp shade, it would be nice to repurpose this idea in a latern for hacker camps.
-
-[Random Noise Lampshade - printables.com](https://www.printables.com/model/239379-random-noise-lampshade)
-by [mjseabright - printables.com](https://www.printables.com/@mjseabright)
-
-![Initial idea](Initial&#32;idea.webp)
-
-So I've seen these [OHM Lights](https://wiki.tkkrlab.nl/tkkrlab.nl/wiki/OHM_LEDS.html) by [TkkrLab](https://tkkrlab.nl/)
-at camps before, it would be nice to make something like this, but with a 3D printed diffuser.
-
-So full credit to these two projects!
-
diff --git a/Miscellaneous/LCD writing tablet functional principal/Tablet screen filled.png b/Miscellaneous/LCD writing tablet functional principal/Tablet screen filled.png
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----
-description: "Cholesteric liquid-crystal drawing tablet"
-created: 2024-05-19
----
-
-![Tablet screen filled](Tablet&#32;screen&#32;filled.png)
-
-## Prelude
-
-I recently stumbled across drawing tablets seemingly works by the means of magic, 
-the search term is: `LCD writing tablet`
-I have a thing for daylight viewable screens, so the allure was irresistible for me.
-
-After one quick trip to the local hardware store, and subsequently the local hacker space,
-i was able to examine the technology first hand, and for low monetary cost too, i might add.
-
-## Properties
-
-The properties are as follows:
-
-- Daylight viewable
-- Passive working principle (only requires power to clear the display)
-- Pressure amount sensitivity (light pressure = thin line, hard pressure = thick line)
-
-## Layers
-
-The tablet consists of a sandwich  of 3 layers: 
-
-- A dark background
-- A layer of cholesteric liquid-crystals
-- A piece of translucent plastic
-
-## Functional principal
-
-The means of function of this device, is merely a property of how the cholesteric liquid-crystal work:
-
-[*"crystals flow at different rates, depending on the direction of pressure being applied"*](https://new.nsf.gov/news/how-liquid-crystal-displays-work-ewriter#:~:text=crystals%20flow%20at%20different%20rates%2C%20depending%20on%20the%20direction%20of%20pressure%20being%20applied)
-
-[*"anisotropic flow causes the molecules to order themselves to reflect light in those places where a stylus touches the plastic sheet."*](https://new.nsf.gov/news/how-liquid-crystal-displays-work-ewriter#:~:text=anisotropic%20flow%20causes%20the%20molecules%20to%20order%20themselves%20to%20reflect%20light%20in%20those%20places%20where%20a%20stylus%20touches%20the%20plastic%20sheet.)
-
-## Sources:
-1. [How Liquid Crystal Displays Work in an eWriter - new.nsf.gov](https://new.nsf.gov/news/how-liquid-crystal-displays-work-ewriter#:~:text=The%20liquid%20crystals%20are%20surrounded,that%20they%20are%20less%20reflective.)
-2. [Cholesteric liquid crystal - wikipedia.org](https://en.wikipedia.org/wiki/Cholesteric_liquid_crystal)
-3. [Anisotropy - wikipedia.org](https://en.wikipedia.org/wiki/Anisotropy)
\ No newline at end of file
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----
-description: Old analog oscilloscope displaying 2D images through music
-created: 2024-03-11
----
-
-![Full frame display on](Full&#32;frame&#32;display&#32;on.png)
-
-I bought an old oscilloscope some time ago, I love the monochrome analogue display, and the thoughtful dedicated input 
-methods. 
-
-It does X-Y plotting, allowing it to display oscilloscope music.
-
-### Video showoff
-**FULL DISCLOSURE** i did not create this music. If you think this is cool, go support the guys who made it,
-by buying their tracks or software.
-Checkout the awesome project at: 
-[oscilloscopemusic.com](https://oscilloscopemusic.com/) and
-[youtube.com - Oscilloscope Music - (Drawing with Sound) - Smarter Every Day 224](https://www.youtube.com/watch?v=4gibcRfp4zA)
-to find out more.
-
-I'm using the audio in a non-commercial use, in appliance with the 
-[Attribution-NonCommercial-ShareAlike 3.0 Unported](https://creativecommons.org/licenses/by-nc-sa/3.0/) license on their
-[bandcamp releases](https://jerobeamfenderson.bandcamp.com/)
-
-### [Blocks 3D B](https://jerobeamfenderson.bandcamp.com/track/blocks-3d-b)
-
-<video controls style="width: 100%">
-  <source src="Blocks 3D B.mp4" type="video/mp4">
-  Your browser does not support the video tag.
-</video>
-
----
-
-### [Hurder Mouse (drift face version)](https://jerobeamfenderson.bandcamp.com/track/hurder-mouse-drift-face-version-2)
-<video controls style="width: 100%">
-  <source src="Hurder Mouse (drift face version).mp4" type="video/mp4">
-  Your browser does not support the video tag.
-</video>
-
-![Warm light streams diverging.png](Warm&#32;light&#32;streams&#32;diverging.png)
-![Green light.png](Green&#32;light.png)
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----
-description: "Comparison of combos of stock, fan and heatsink"
-created: 2022-11-10
----
-
-![Main](main.jpg)
-
-3D printed raspberry pi case with an undervolted fan, and heatsinks.
-
-![Main](case.jpg)
-![Main](graph.png)
-
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----
-description: LS012B7DH02
-created: 2024-01-19
----
-
-![Holding jig](Holding&#32;jig.jpg)
-
-Collection of information regarding the sharp memory display `LS012B7DH02`
-For memorization and referring back to.
-
-## Summarization of the datasheet information
-
-### Precautions
-  - Don't excessively bend the connector.
-  - If displaying a static image for a prologed time, refresh every 2 hours to avoid burn in?
-  - It's made of glass
-  - Clean with isopropyl alcohol
-  - Don't glue it
-  - UV / Sunlight exposure bad :/ but how bad? time will test this assertion
-  - Static electricity might cause pixels to not be shown, update frequently to reconcile LCD coagulates at low temperatures, room temperature is optional
-  - Place controller driver near LCD due to impedance
-
-### Specs
-  - View port 1.20”
-  - 240x240 pixels
-  - [TFT LCD](https://en.wikipedia.org/wiki/TFT_LCD)
-  - Dot pitch 0.127mm
-  - Size: 35.78 (W) × 36.53 (H) × 1.605 (D)
-  - Hardness: 3H 
-
-### Pinout
-Terminal | Symbol   | I/O  | Configurations | Function                                           | Remark
--------- | ------   | ----  | -------------- | --------                                           | ------
-1        | SCLK     | INPUT | NoPull         | Serial clock signal                                |
-2        | SI       | INPUT | NoPull         | Serial data input signal                           |
-3        | SCS      | INPUT | NoPull         | Chip select signal ( Active of Hi )                |
-4        | EXTCOMIN | INPUT | NoPull         | External COM inversion signal input ( Square wave) | 【Note 4-2】
-5        | DISP     | INPUT | NoPull         | Display ON/OFF signal                              | 【Note 4-1】
-6        | VDDA     | POWER | -             | Power supply (Analog)                              |
-7        | VDD      | POWER | -             | Power supply (Digital)                             |
-8        | EXTMODE  | INPUT | NoPull         | Control mode of COM inversion is select terminal   | 【Note 4-2】
-9        | VSS      | GND   | -             | GND (Digital)                                      |
-10       | VSSA     | GND   | -             | GND (Analog)                                       |