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  • Author Author: ralphjy
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MAX78000FTHR with 2.4" TFT FeatherWing

ralphjy

The nice thing about using a Feather compatible footprint is that all of the FeatherWing accessories are available for use.  It would be great to integrate a small display with the MAX78000FTHR to create a portable smart camera.  A stacking display can't be used because it would block the camera and stacking displays don't have very high resolution or appropriate aspect ratio.

 

Adafruit makes a couple of nice TFT FeatherWings that would mount the MAX78000FTHR on the back which is the perfect setup.  There is a 2.4" 320x240 Touchscreen and a 3.5" 480x320 Touchscreen.  I opted to get the smaller one https://www.adafruit.com/product/3315 .

 

Here's a couple of pictures from the Adafruit product page that shows the display with an ESP8266 Feather mounted on the back.

imageimage

 

And here's my setup.  The MAX78000FTHR board is longer than a standard Feather in order to accommodate the stereo audio in/out jacks.

imageimage

 

I printed a cover to facilitate using this setup as a portable smart camera.  For this purpose, the audio jacks just get in the way.  It would have been nice to have a version of this board in the shorter Feather form factor.

 

I was surprised at how tiny the VGA (640x480) camera is. It's about 3x3mm - you can see it at the left center of the board.  Here's a link to the sensor https://www.ovt.com/download/sensorpdf/46/OmniVision_OVM7692.pdf .

 

I need to try a program that utilizes the camera and display on the MAX78000FTHR.  Most of the AI examples are for the MAX78000EVKIT  that uses a larger 3.5" TFT that is included on the board.  I've been having some issues with the MAX78000 SDK and the OCD debugger, but I compiled and ran the TFT_Demo shown in the video.

 

 

Hopefully, will get an AI example running with the camera and display soon - it looks like there is one available for MNIST.  Then I should be able to figure out how to program the camera.

Parents

  • Hello Ralph Yamamoto's Blog I am following MAX78000 feather board tutorials to upload example code using Eclipse Maxim SDK. But I receive launch failed error. I had disabled the firewall and relaunched the IDE and tried just to see if the ports are blocked by firewall. But that did not work. Kindly help how to solve this problem.

     

    Error in final launch sequence
    Failed to execute MI command:
    -target-select remote localhost:3333
    Error message from debugger back end:
    localhost:3333: No connection could be made because the target machine actively refused it.
    Failed to execute MI command:
    -target-select remote localhost:3333
    Error message from debugger back end:
    localhost:3333: No connection could be made because the target machine actively refused it.
    localhost:3333: No connection could be made because the target machine actively refused it.

Comment

  • Hello Ralph Yamamoto's Blog I am following MAX78000 feather board tutorials to upload example code using Eclipse Maxim SDK. But I receive launch failed error. I had disabled the firewall and relaunched the IDE and tried just to see if the ports are blocked by firewall. But that did not work. Kindly help how to solve this problem.

     

    Error in final launch sequence
    Failed to execute MI command:
    -target-select remote localhost:3333
    Error message from debugger back end:
    localhost:3333: No connection could be made because the target machine actively refused it.
    Failed to execute MI command:
    -target-select remote localhost:3333
    Error message from debugger back end:
    localhost:3333: No connection could be made because the target machine actively refused it.
    localhost:3333: No connection could be made because the target machine actively refused it.

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