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The last program gives the same error:

Hello seokgi

I tried to run your program but I've got a different warning:

Hello billduck

Did you try to use search?

I had the same problem on 2nd April 2020.
Finally I understood that the problem is in the corrupted registry.
After I renamed the registry the FC8 has created a new one
and I have never had any problems.

Hi Question to Matrix team. After I did the update, the Uno and Mega, during the 'Compile to HEX' process do return the errors. It only happened with added Timer (storage). No problems without the Timer. I am not sure what has happened. I used the Timer (storage) yesterday with the Uno project. All ...

Need some help with tidal volume calculations.
In what situation the sensitivity changes from 5 to 7 and up?

Good on you Ruben.
The most important thing that you have done everything by yourself.
All the best.

I am glad you solved the problem. PS By writing that you have used the SPI component from the 'Tools' menu did you want to say that you have chosen the SPI CAL component? What is CS/SS line port you have used in SPI CAL component? Is it B2? A good short info about CAL: https://www.matrixtsl.com/wiki...

Hi Ruben Questions 1. If you deactivate the UART and CAN-bus, do you have any problems between the arduino and digital pot communication? 2. If you activate the CANbus - will you have any problems?" 3. If you activate the SPI Master, UART and Canbus - will the problem appear? -----------------------...

ruben_1989 wrote:HI

I use B2 to control the cs line for the SPI connection between the Arduino and mcp2515 can controller.

Please have a look Ruben.
Flowcode does the CS/SS line setting for you as B2.
However in the code the B2 is not controlled.

Thank you Ferla. I think the biggest problem with this design is the gears. Another problem is (I found it on internet): Windshield wiper motors are NOT back-drivable, due to the worm drive, they lack integrated position sensing. I couldn't see on video how did those guys solved the timing and posit...

Using the interrupt Can somebody please help me. I have to control three states of the machine: - Inhale - Exhale - Pause As well as I have to check on human inter-action with some settings, (say: motor speed, motor distance travel and the pause time). What is the best possible way to run the progr...

Hello Ruben You wrote: Everything works fine on the SPI of the CAN part. I am not sure that I understand. I checked the SPI Master setting: it is B2 for CS/SS in your program. However before you send the command and data on SPI you set the D7 to 0 and D7 to 1 after the data is sent. I think I am mis...

Would be great if FC8 community will help me with this project. The main components of this system (please correct): 1. The BMV or bag-mask-valve 2. Arduino MC with other components/sensors (Airway pressure must be monitored) 3. Mechanical two arms /claws/gripper system. 4. Filtration system. COVID-...

Hi Ruben

Can you please attach the last version of your program?

Looks like the main parameters are:

Respiratory Rate (RR) - (breaths per minute): between 8 – 40
Adjusted by changing the speed of motor

Tidal Volume (TV) (air volume pushed into lung): between 200 – 800 mL based on patient weight
Adjusted by changing the 'arms' travel distance

Commands

Hi Ruben

Have you seen this post?
http://www.matrixtsl.com/mmforums/viewt ... pot#p99622

Hi again Ruben Probably I misunderstood you as you used some kind of a different English (without capital letters, without writing I as I and not as i and so on...) Looks like you have problems with SPI communication but not with the digital potentiometer control. About initialisation When you don't...

The main goal of this 'question' is to ask people to share their knowledge.
Do you plan to do it or not?
And yes, thank you for not deleting this topic.

MIT Emergency Ventilator (E-Vent) Project

A very simplified diagram of device.

Thank you Abhi I have watched both videos. The first one is not technical, but more like advertising the product video. The second one (the non-English one) is better as it has showed the components of the system. Looks like the resuscitator modification is the way to go (with or without the oxy sup...

Interesting video
New innovation could help solve ventilator shortage.
https://www.youtube.com/watch?v=xdZtMgpxnPI

Re: hospitals. Let us imagine that we have no more hospitals or the hospitals are so full and the waiting list goes in weeks. Re: Positive pressure (oxygen) support. Can I ask you the possible parameters for that system? Continuous Positive Airway Pressure (CPAP) based on Arduino can be looked into...

The world in a very hard situation right now. People try to protect, fight the coronavirus, organise some groups to help, etc. As I understood there are a lot of cases with people in need of ventilators. Some technical minded persons do try to create some projects and even managed to build the savin...