Thanks as always Martin. Got 3/5 - came short on the language one and no 5. Should have known better on this one as I have come across it before. Silly idea though, if they have a unique letter, what's the point of putting the number?
I used up my one and only set of questions that were already done. I will tyr to run them one in awhile and perhaps you can help. Please send questions to me at firstname.lastname@example.org. I'll compile them and post.
Got them all- I guess I must be an instrument guy. LOL.
I'm not convinced you can't use type B below 0°C but it has a nasty hook around there where it reverses slope, so a given mV can map to more than one temperature, and nobody that I've seen has bothered to measure the mV below 0°C (the only reason to use such a nasty Pt-Rh thermocouple is if you have to go up to very high temperatures (>1500°C)).
I am not sure if we are talking about the same (or my bad English is tricking me), but... let it go:
If the matter is DB x DE connector designations, the first letter (D) is for 'D' type (or trapezoidal), second - A,B...E is for shell size and the number, for the number of pins, of course. For example, we can have DB25 and DB31 - same shell size but different number of pins. The same for the - once ubiquitous - DE9 (PC serial port) and DE15 (aka VGA) .
@Andrewier....Thanks for that, very well put, I'd forgotten about VGAs. I guess there is some sense to it. Are you sure about DB-31 - I remember seeing a high denisty plug the sdame size as a DB-25 but (like a VGA) with 3 rows of pins, but there would have been a lot more than 31 there....
@David Ashton... I am glad to be of help, despite my limited English abilities. From what I remember ITT Cannon and Amphenol used to have all sorts of D-Subs, 2 and 3 rows kinds with odd countings like 25, 31, 36, 37, 51 and so on. Also interesting to note that shell size grows in order A, B, C, D and suddenly shrinks to E, the smaller of all shells. I remember that was a heavy nightmare to understand the Cannon catalog in order to build a proper P/N for ordering. I used to buy it for geomagnetic sensors, requiring shells and everything else to be made of non magnetic alloys, as brass or aluminum. It was a real challenge requiring double checking (usually more than one person) to make shure we wouldn't buy very expensive wrong parts!
@Andrewier...."despite my limited English abilities." Please don't apologise, if my command of other languages (French and Afrikaans in my case) was as good as your English, I would be a happy man!
I've also seen D-subs with coax connectors in them as well as pins. Pretty rare though. And they are also confusing in what is male and what is female the shells have a different sense to the pins. I stick with Pins = male which seems right most of the time. Don't you hate it when you misinterpret the catalog and you end up with wrong parts????
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.