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?I don’t have my computer with me, but I’m trying to forward you the 29 page document. Scan the document for the phrase ”general standard ”and you will find a list of the standards they are

Good Morning/Afternoon Gordon and Happy Easter!! Thanks for your very nice words, I really appreciate it and very happy to help you out and your team. ?Helping you, your team and mankind means more

If anyone here has the IEC standards that the FDA is referring to, and I can get you the list, but right now my wife is driving, please speak up quickly. if somebody else is ready to file with the FDA

Hi Gordon, What standards do you need? One or more of us may have access to current copies… B Sent: Sunday, April 12, 2020 9:16 AM To: [email protected] Subject: Re:

OK folks you’re not gonna believe this: the latest screwup is it we don’t have the standards to read to finish what I wrote in three hours for regulatory submission, because people are waiting for

Report attached along with some observations and analysis. Relatively high variations in cycle to cycle delta pressure were seen with the plastic spring PEEP valves compared to a steel coil spring

Oh my, the code is so crappy. there are only a couple of buttons that I can figure out. There is a button that selects which parameter it will be adjusted and I only have two that work in my code,

Gordon your code is pretty usable. I am a bit confused about the user interface though. Can you show us a video of the way user interface works on the two line display?

The automotive canister valve purge solenoid, the only thing I could get in town, is the hottest part, dissipating under 10 W, using a room thermometer I measure its case temperature at 117°F. My

Voltage Notes: The medical grade IEC certified power supply is producing 14.95 V under load. I’m feeding that into the highest voltage input of my transducer/power supply board, and under load the

And any of you guys using my crappy code, I’m sure you can see that I have screwed up the first line displays, which probably were supposed to display the peak pressure or total volume or something,

Marcelo it will be easy to switch the code out by demonstrating that yours accomplishes the same outcome. But in some parts of the world, lives are at stake. Every hour that we delay is precious to

I can not finish the baseline code (or supposed to be) until I get BMP280 sensor. FedEx is supposed to deliver it tomorrow by 5:00PM ET. I may get the code up/running tomorrow late night. I would

Thanks jack! I’ll review. Worked perfectly when I pulled a wire. Disabled calls from then on!! Forced me to add a way to turn it back on! Ouch.

Gordon: See below: - SOFTWARE NEEDED: 1) A way to reset the I2C protections -- see my line 678 and 688 -- need to do that if, for example, all four buttons are held down, perhaps??? I don't follow

COMPLETELY WORKING SELF-CONTAINED VERSION OF VENTILATOR CONTROLLER -- Working code (crappy code) attached. -- Note lines 678 and 688 of .ino file:? protections against I2C bus failure are

Bob, thank you very much, please send it as a word type document so that Carolyn gets it also, and throw in a photo or two if you can. She needs that kind of documentation.

Hi Folk, FYI my alma mater is running a Ventilator <https://www.mechmining.uq.edu.au/uq-ventilator-design-hackathon> Design Hackathon <https://www.mechmining.uq.edu.au/uq-ventilator-design-hackathon>

Thanks Tom! I lovethe approach of layered (presumably laser cut) plexiglass for some components - being able to visually inspect the workings of a valve is very convenient to exclude faults, and check

Hi Erich, I found some cheat sheets and was able to figure out OpenSCAD well enough to produce this exploded view drawing. Basically the valve consists of five layers of plexiglass sheet sandwiched