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Adding Airlift to Metro M4 Express
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Adding Airlift to Metro M4 Express

by Giv on Sat Jun 25, 2022 6:39 pm

Hi,
To get the above project started I went over the schematics of the Metro M4 Express AirLift and its pin out to match it for my project, But it seems there are discrepancies. In the schematic the ESP_CS pin of the ESP32 module is connected to 3.3V through a 10Kohm resistor and also the ESP_RESET is connected to the ground through a 10Kohm resistor. In the Adafruit Metro M4 Express AirLift (WiFi) document, on page eleven these and other pins are not matching with the schematic 100%, I might be mistaking.

I would like to know the correct pin connections between the Airlift Breakout WiFi and the Metro M4 Express as it is on the Metro M4 Express AirLift.
Thank you so much.
Last edited by dastels on Sat Jun 25, 2022 7:07 pm, edited 1 time in total.
Reason: Removed he large text

Giv
 
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Re: Adding Airlift to Metro M4 Express

by dastels on Sat Jun 25, 2022 7:09 pm


dastels
 
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Re: Adding Airlift to Metro M4 Express

by Giv on Sun Jun 26, 2022 10:03 am

Hi Dave,
Thank you for the information you sent, it does help with the definition of the pins connected. However, I am still looking for a documentation/Pinout/schematic that shows how an Airlift Breakout module is connected\Added to a Metro M4 Express to change it into a Adafruit Metro M4 Express AirLift (WiFi). The SPI connections are staright forward and on the ICSP. Its only these pins on the Airlift Breakout module CS, GPIO0 RST and BUSY, that need to be connected to the correct pins on the SAMD51 to initialize the Airlift correctly. So, I like to know how it is done on the Adafruit Metro M4 Express AirLift (WiFi), which helps me with all the SAMD51 boards that I have.

Thank you again.

Giv
 
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Re: Adding Airlift to Metro M4 Express

by dastels on Sun Jun 26, 2022 11:07 am

There's no set of correct pins; those can be connected to any digital io pins and initialized in the code. The MetroM4 Airlift uses pns internal to the board that aren't brought out to the headers so you will be unlikely to replicate the connections at an MCU pin level. So you can't change a MetroM4 + Airlift breakout into an exact replica of am MetroM4 Airlift.

Dave

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Re: Adding Airlift to Metro M4 Express

by Giv on Sun Jun 26, 2022 11:10 am

Thanks Dave for getting back to me quick.

Regards.

Giv
 
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Re: Adding Airlift to Metro M4 Express

by Giv on Sun Jun 26, 2022 2:05 pm

Dave,
By the way, is that a proprietary information or Open Source and can you share it with me please.

Thanks a bunch.

Giv
 
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Re: Adding Airlift to Metro M4 Express

by dastels on Sun Jun 26, 2022 2:42 pm

It's all available. Check the Airlift related product tutorials https://learn.adafruit.com/search?q=airlift. All the infor is there, including schematics.

Dave

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Re: Adding Airlift to Metro M4 Express

by Giv on Sun Jun 26, 2022 4:25 pm

Dave, no sorry the information I am asking for is not there. Thank you for your help.

Giv
 
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Re: Adding Airlift to Metro M4 Express

by DJDevon3 on Mon Jun 27, 2022 4:00 pm

https://learn.adafruit.com/adafruit-met ... /downloads
All the schematics for a board can be found within it's learn guide on the downloads page for that board. I've checked and the schematics are in the right places on the correct pages.

If you're asking someone to show you a diagram for connecting the Metro M4 express to the airlift breakout module that also exists in the learn guide that Dave correctly showed you here: https://learn.adafruit.com/adafruit-air ... ut/arduino

Nothing in the Adafruit ecosystem is proprietary. You can find source code and schematics for any Adafruit product which sometimes involves searching on github.

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Re: Adding Airlift to Metro M4 Express

by Giv on Tue Jun 28, 2022 11:17 am

DJDevon3 ,
Thanks for your reply, but I have already looked around. I may have to buy one of these Adafruit Metro M4 Express AirLift (WiFi), and hack it to get my answer.

Giv
 
Posts: 29
Joined: Sat Aug 06, 2016 1:52 pm

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