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How does a pre-amplified pH sensor work? Consider a "pre-amplified" pH sensor such as https://www.omega.com/pptst/PHE9... There is only a single BNC connection. Does the RTD temperature compensation as well... |
Tue. Sep 4, 2018 - 02:52 PM |
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Looking for some 'Freak to rebuild IAR application Also posted in Off-Topic to get more eyes... A customer of our board house needs a legacy app rebuilt. About 10-year-old app, and obsolete components and similar... |
Tue. Jul 24, 2018 - 02:56 PM |
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MicrochipDirect pre-programmed AVRs -- how to We are assisting our board house with specifying the build for another of their customers. Mega64 app that had pre-programmed from factory/distributor in the past. As... |
Fri. Jun 29, 2018 - 03:57 PM |
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Xmega -- How to detect USB A design is going onto paper, with an Xmega384-C3. It will not be USB powered as the Xplained is, so we didn't get any hints there. The question is what is the usual/... |
Fri. Jun 1, 2018 - 01:43 PM |
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C question -- init string without trailing null possible? I seem to recall a discussion on this in the past, but cannot find it. I want to put an array of structs into flash. (but flash or EEPROM or SRAM shouldn't matter, I... |
Wed. Sep 27, 2017 - 07:21 PM |
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How many "powerful" instructions? My pdp8/e reference card, circa 1970 [attachments too big for wysiwyg apparently...] |
Sun. Mar 5, 2017 - 08:14 PM |
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Mega324PB tough to find - Split from Mega328PB thread gchapman wrote:Mouser Electronics ordered some. That was in October. Still not there: Mouser Part #: 556-ATMEGA328PB-AU Mfr.'s Part #: ATMEGA328PB-AU... |
Wed. Mar 1, 2017 - 04:46 PM |
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Math help--Hydrophone voltage output scale A prototype app is using a hydrophone http://www.aquarianaudio.com/h1c... The datasheet says under Specifications which is confusing to us...a uPa is less than a butterfly... |
Thu. Feb 23, 2017 - 04:53 PM |
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Adding GPS tracking A customer has requested that we add GPS tracking to the device, which is a commercial/consumer rental device. Think "lojack" -- when not returned, or stolen, they want to... |
Wed. Nov 30, 2016 - 02:09 PM |
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Replace venerable TI-36X Solar Calculator After 30 years or so, I gave my TI-36X solar calculator a [too] hard drop and now I'm missing a few segments. :( From http://www.datamath.org/Sci/Mode... Texas... |
Tue. Aug 16, 2016 - 02:59 PM |
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(1<<bitnumber) expression considered harmful Apologies to Edgar Dijkstra: Go To Statement Considered Harmful The below has been at least mentioned a few times on 'Freaks over the years... (1<<bitnumber)... |
Thu. Aug 11, 2016 - 07:55 PM |
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AA alkaline discharge curve @5mA Can anyone point me to a typical discharge curve for a AA alkaline battery with a 5mA discharge rate? A quick Google search only uncovered curves down to 50mA; all others... |
Tue. Jul 5, 2016 - 02:56 PM |