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Hi Gordon et al, Just an FYI, Robert Read, Ben Coombs and I are attempting to write up "the great ventilator rush of 2020".

There's actually quite a diverse collection of groups that spawned around the same time. Many are still very active, coming together and getting increasingly organised. Many have now established a

OK...done! Jack, W8TEE

YES that would be useful. I've got a talk to give Tuesday night and famly coming for which I have to havve a boat going for Friday.....and the list goes on and on. But I gave two online lectures to

I'll remind you again in about a month...would that be useful? I just fine Rich to be a nice guy and I try to help him when I can. Enjoy the weekend!! Jack, W8TEE

Aargh....darn. I didn't do an article. I was asked (at least for now) to help with an ARRL item and gee I haven't thought about it. Thanks for reminding me. Sign me 'rueful' Gordon

Thanks, Gordon. Jack, W8TEE P.S.? Did you do the article for Rich at CQ??

Hi Bob -- I check back with the UF group from time to time and the matter is still in review at the FDA. Crucial LEARNING POINTS: 1. Earlier and more frequent communications with the FDA would have

Topic says it all.

Yes, I've been looking at O2 concentrators. An interesting challenge to design a ventilator that can work from a gas supply of only a couple pounds of pressure.

Agree Tom. Oxygen supply will be critical. There are channels on Helpful that are looking at concentrators etc too.

I'll check that out. I learned a terrific amount about ventilators from this group, Gordon's work along with the rest. And reading the many resources pointed out, including yours. Just to check what I

Hey folk, for those still with energy I think you'll all find lots of kindred spirits in the very active Slack run by volunteers at https://www.helpfulengineering.org/ There are a variety of channels

Where I started to run into problems was with the various GUI libraries, the Adafruit GFX libraries and individual TFT drivers. (One was the Adafruit GFX library upgrading to allow non-square pixels,

All: I'm working on a new beginning C book to replace Beginning C for Arduino. The new book is Beginning C for Microcontrollers and features the Arduino family, but also the STM32F103, the ESP32, and

Hi Ashhar, Read your bluepill info, very helpful information collected into one place. A while back Roger Clark transferred his Arduino STM32 BBS to STM, that might have signaled the end of updates to

I have sorted out the toolchain for the bluepill. here it is: https://www.vu2ese.com/index.php/2020/06/30/bluepill-setup-on-arduino-with-ubuntu-linux/

I was surprised recently when I was designing a little remote monitor and thought it would be nice for it to have a local display on the device. Originally I thought a 7 segment display like what

Sorry...Steve and others.... I was discussing lack of LCD displays over on the QRP-Labs group and absent mindedly posted a comment on LCD availability to the Ventilator Discussion group. Answer is

There are lots of 1602 style LCD displays available via Ebay. If I understand correctly, the problem is that QRP-Labs supplier did not or could not supply the correct ones in adequate numbers for