Hi,
My Logic Analyser connections.
Tom.... 
- What, no resistor code colours for channel wires ?
I'm not ADD, well not yet in my old age anyway....
Tom....
Guilty! 
Sharpie should make a special color pack for engineers...
Brown, Black, Red, Orange, Yellow, Green, Blue, Purple, Gray, White, Silver, Gold...
(Yes, silver, white, and Gold already exist. I think Gray is the tough one, since it can tend to look like black or purple.) (The existing 12-packs seem to have about 5 colors in the blue/green range, and a pink.)
Wire Identification, Numbering, and Labeling
Option 1 — Numeric Identification (00–99 / 000–999)
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Use two heat-shrink color bands to identify wires (00–99).
For 000–999, use three bands. -
Obtain 10 different colored heat-shrink tubes (e.g., 1/8" or 3/16", or ~3 mm I.D.).
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Cut 2–3 mm rings from each color.
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Place the rings on both ends of the wire, then shrink using hot air.
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Cover the rings with clear heat shrink to prevent movement and improve durability.
Option 2 — Functional Color Coding
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Use specific color ring combinations to indicate wire function.
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Example:
- Three black rings → Ground (GND)
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This method can supplement or replace numeric identification.
Option 3 — Written Labels
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Cut a 1 cm length of white 1/8" heat shrink.
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Insert a thin, stiff material (e.g., ~1/32" PCB) to flatten and stabilize the tubing.
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Using a fine-tip permanent marker (e.g., ultra-fine Sharpie), label the wire’s function (e.g. +12V).
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Remove the insert and pass the wire through the labeled heat shrink.
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Apply heat to shrink it onto the wire.
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Cover with a 2 cm length of clear heat shrink to protect the label from smudging and wear.
- Shrinking your writing makes it smaller and gives sharper edges.
These work well too:
You'd think that nore places would sell a color-coded assortment (full, 11-color) of heatshrink, or at least the 7 or 8 less common colors (black, red, white, and clear are pretty easy to find.)
How well does white HS, colored with a sharpie, hold up if you put clear over it?
- The Sharpie as seen in image D has proven successful over 10 years.
Turn Your Logic Analyzer into a Real-Time Firmware Debugger
Razor Saw Cutting Board
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Make yourself a Cutting Board to make sizing of headers easy work.
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One of my favourite tools is my 52 TPI 0.01” thick Razor Saw.
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When cutting headers, most of the plastic remains intact after cutting.
Only 10 thou plastic is removed.
No plastic shattering occurs. -
The following images show how to make a cutting board for your razor saw.
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The 80-grit sandpaper prevents the board from moving while cutting items.
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The FR4 Stop Plates register the work when cutting headers.
Edit
Oops, since the saw cuts on a pull stroke, the cutting board should be turned 180° 
New High Grip Tweezers
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I have been trying out a new pair of $14.00 tweezers sold by Amazon.
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What makes these tweezers stand out is their quality, tip strength and their ability to grip components.
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These are Stainless Steel Tweezers with Nano Laser Etching on the inside of the tweezer’s tips.
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It is the tip etching that really makes these tweezers work so well.
Older tweezers are smooth or have very little tip treatment. -
The following images demonstrate the new tweezer’s attributes.
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One down side is they are ferromagnetic but they can easily be demagnetized if need arises.
Possibly 403 stainless steel. -
I’ll keep the old but use the new.
I've found that if you need or want an electric motor to sound like a gasoline engine, a simple hack I came up with is to stick a stripped piece of solid core 22-gauge wire in a configuration where the very tip of the wire comes in contacts with the propeller. I've found this does a decent job at replicating an engines noise in my airplane project, but be warned, it can get noisy.