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I don't know what pdf is being discussed. 1. I think I can write a simple english explanation of how Farhan/Purdum/Gibby code works that would be sufficient for the FDA submission. 2. At the moment, I

All: I was going through the code looking for spots for a speed-up and found the following statement in the INO file, line 665: ? if ( (current_phase > cut_off) & (inspiratory_pause == 0) & (p + 1 <

Jack -- can you add that to both sets of code and either run it to test, or send working version tto me and tell me what to do in order to evaluate???? This would be important for FDA. Gordon

The flash memory use seems find, but I do worry about the SRAM. Out of that 2K of SRAM, it's the stack space, not the heap, that worries me most. Those statistics are compile time statistics, but

Load sent to Gordon with the following: Changes (commit: abd0a2d) - breather startup waits 4 seconds to grab pressure reference - Fast calibration fully implemented - valve commands using open/close

Changes (commit: abd0a2d) - breather startup waits 4 seconds to grab pressure reference - Fast calibration fully implemented - valve commands using open/close wording. - valves can independent be

Ashhar: Which PDF is that...I must have missed it. Jack, W8TEE

Asher, I have a good understanding of how your code works. the one I need help with is Marcelo’s code

Gordon, The explanation, in english, of the code is in that pdf. I can expand it if you want to.

Gordon - there is quite a stream of engineers and software people volunteering in the "helpful engineering" slack. It could be useful if one of the team posted a note. They could be especially helpful

Todo list: https://github.com/CSSALTlab/Open_Source_Ventilator/blob/master/ControllerSourceCode/TODO.md

Sketch uses 24734 bytes (80%) of program storage space. Maximum is 30720 bytes. Global variables use 1529 bytes (74%) of dynamic memory, leaving 519 bytes for local variables. Maximum is 2048 bytes.

What are you getting for flash and SRAM usage now? Jack, W8TEE

Erich: Just pointing out a new design from the PANDA group. I review Thingiverse every evening for any new posts that may be useful. James

There is a TODO list link at the very bottom of the Github code page. Let me know what you are willing to do. We need to save RAM. What I did for params array, in ui_native.cpp by moving it to

Hi Kris -- I'm not sure. We have primitive working code here in Gainesville that has sufficed to get us through the FDA initial discussion with some confidence. I believe marcelo is now coming back

Nop, thanks. The problem was making sense the values and conventions. Resolved, thanks.

Do you have a list I can jump on?

GitHub master (and dev) branch has BMP280 integrated and working fine. Need a few things but I am really tired now to continue. For two valves system it may need to open the exhalation valve for 2~3

GitHub master (and dev) branch has BMP280 integrated and working fine. Need a few things but I am really tired now to continue. For two valves system it may need to open the exhalation valve for 2~3