New Option PCB

[Arie001]

Here is a new option for a PCB

https://github.com/Arie001/ambovent_pcb_Rev_Arie/tree/master/respirator-control_rev2

Please review Kicad I have checked it in Fusion 360 .
I did not Find good cheap switches that fit the small holes.
Only one three extra Parts for 12v .

DRC was run at 0.5mm . Fails RGB Led the footprint and Sw1 is near the corner screw
Note The Arduino and the Module I2C was not put on the PCB as I want to keep it simple no smd soldering.

I think it is a Major step up.
I can have a board ready in a few hours I am in Modiin .

The Board is supported 3 corners the bottom right is not supported No hole Below the the Hole
for the sensor.

I have exported the Step Not the Height of the Lcd may not be correct .

I use dry Film Etch
054-6597555

[salam17]

Not sure where this rant belongs, but here goes: Almost none of the DIY ventilator projects I see have alarms or battery back up, despite the fact that if you need a DIY ventilator you are also short staffed by definition; at a bare minimum, should power be lost when there are no eyes on the patient a battery powered alarm is needed; it could save a life. Unless there is a UPS, one that has an alarm of its own, I see this as a critical requirement. There is plenty of room on this PC for a coin cell and a beeper.

[nimrod46]

ition; at a bare minimum, should power be lost when there are no eyes on the patient a battery powered alarm is needed; it could save a life. Unless there is a UPS, one that has an alarm of its own, I see this as a critical requirement. There is plenty of room on this PC for a coin cell and a beeper.

That's correct we are using UPS and a battery as a backup to keep the system running (not just for alarm).

Someone did design for as a new board that will contain all of these things and much more but it will be ready only in a weak, @Arie001 I am contacting you NOW is will be a huge help for as.

[Arie001]

See the PCB I made see the PCB in the production directory .
See the gerber f copper in the github .I have spent time doing a high quality work .
No a 5 min pcb one that a person can be proud of.

Ok it was not me that claimed 2 hour battery life and never measured the battery voltage.If you claim 2 hours how do you know the battery was charged . Or was it Just that most of the Team wanted to get the positive press.

I added 2 resistors and one Cap to a unused pin A7 .
Find Fault with the PCB it is High Volume ready done by a skilled Pcb Expert. Not somebody that does not Know the Difference between Front and Back Gerber Files.

I have no Issue to not have the PCB in the main.

Lets say you can run this on a 12v 7ah alarm led acid battery for two hours . It is sort of Important
to Know the battery is at 12v and not 10v.

Please download the original pcb a 1 layer board now explain how to solder the cap on the input if the board if the pads are covered. Fcu

[Arie001]

Nimrod see the Board

[Arie001]

it is about to be updated to esp32 in the next 2 days so memory issues will be history

[Arie001]

Call Me 0546597555

[Arie001]

I have Done Some extra Editing . To stop the Cables Falling out the Headers face up just the Lcd cable needs securing Hot glue or silicon . I added a Tie down point

[Arie001]

Here Is picture of my Current pcb My Fork has changed al lot But the Two parts that I can update the Board Is the Pots and the Push Button switches> I am Moving away from the Idea of physical
Pots.

I will Not we working on This on the 16 of April I an attending .
https://www.thethingsnetwork.org/conference/
Online
I am still TTN Modiin
https://www.thethingsnetwork.org/community/modiin/

Arie

https://grabcad.com/library/ambovent-with-metalwork-face-1
Note Test and Alarm on My Fork
https://grabcad.com/library/my-fork-of-ambovent-1

[Arie001]

Do not use until 3v level shift is added 2 * 2n7002 and 2 resistors

[Arie001]

3v level shift done on pcb