Electronics Design

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A method for easily accessing inner layers

I needed to access .001" thick copper on an inner layer of a board. DRILLING I constructed a continuity indicator. I co...
6 comments posted 6yrs
posted by dagmargoodboat
6 comments posted 6yrs posted by dagmargoodboat

carpet cleaning

The carpet cleaners are coming at 3PM. I've totally stripped my office except for a few giant pieces of furniture. Work...
5 comments posted 6yrs
posted by jlarkin
5 comments posted 6yrs posted by jlarkin

3D vector calculation

My Android smartphone yields two triplet x;y;z combinations which describe its orientation relative to gravity and the...
10 comments posted 6yrs
posted by gravity
10 comments posted 6yrs posted by gravity

Temperature Measurement

I recall looking at using an NTC thermistor for temperature measurement and finding it was a bit of a PITA because of t...
96 comments posted 6yrs
posted by gnuarm.deletethisbit
96 comments posted 6yrs posted by gnuarm.deletethisbit

Your Social Security Number..

..has been terminated. WASHINGTON FEDE (360) 763-0674
20 comments posted 6yrs
posted by robertbaer
20 comments posted 6yrs posted by robertbaer

i2c pull up resistor situation

These little "Digistump" Velleman boards with an ATTiny85 on them are handy, but because they're intended to be program...
16 comments posted 6yrs
posted by user
16 comments posted 6yrs posted by user

Even/Odd R factor

So any integer times an even is even. Even times even gives and even. Odd times and even gives an even. Only an odd tim...
20 comments posted 6yrs
posted by gnuarm.deletethisbit
20 comments posted 6yrs posted by gnuarm.deletethisbit

Ping Win Hill: AoC xChapters 3x.15.4 output monitor

Hi Win, I just picked up a copy of the x-Chapters, and it has already proved itself quite useful! I need to make a nega...
8 comments posted 6yrs
posted by matt.blessinger
8 comments posted 6yrs posted by matt.blessinger

POSIX.13 Definition of Embedded

Here is the definition and rationale for the term "embedded" as in device or operation system or application code, as u...
6 comments posted 6yrs
posted by joegwinn
6 comments posted 6yrs posted by joegwinn

Helmut Sennewald RIP

Sebastian Wolf informed us in the German NG that Helmut passed away: https://groups.io/g/LTspice/topic/74768321#121677 I...
5 comments posted 6yrs
posted by news
5 comments posted 6yrs posted by news

US Corona States

There are a few states that have done fairly well after a rocky start. New Orleans had a big sendoff from the infection...
6 comments posted 6yrs
posted by gnuarm.deletethisbit
6 comments posted 6yrs posted by gnuarm.deletethisbit

photodiode voltage

https://optodiode.com/pdf/SXUV5DS.pdf That's a common trick in the exotic photodiode biz. The part has guaranteed 5 vol...
30 comments posted 6yrs
posted by jlarkin
30 comments posted 6yrs posted by jlarkin

OT: It's not about Justice, it's about Anarchy

The only possible reason anyone would wish to abolish the police force rather than reform it is because they want chaos...
17 comments posted 6yrs
posted by curd
17 comments posted 6yrs posted by curd

POTS Phone Line Power Capability

I know phones are capable of operating off hook without separate power sour ces, but I was wondering if it might be pos...
96 comments posted 6yrs
posted by gnuarm.deletethisbit
96 comments posted 6yrs posted by gnuarm.deletethisbit