I just received the 3.5 TFT display I ordered item # 2050. I got the graphics test and touch paint examples to work. I can't seem to be able to load an image, adabot.bmp, from my SD card. The directions are more for a featherwing, not sure if that matters I am using a Ardunio mega 2560. I've tried a couple of the examples and I went to the image loading section and downloaded the libraries and still can't get it. I'm sure I'm not doing something right but not sure what that is.
How do I load an image from the SD card to the TFT?
Thanks
John
Image loading from SD to a 3.5 TFT
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- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Image loading from SD to a 3.5 TFT
Hi Stumpy_L,
Have you tried loading the example sketch "Adafruit_ImageReader→FeatherWingHX8357" as described here:
https://learn.adafruit.com/adafruit-3-5 ... s-spi-mode
more details here:
https://learn.adafruit.com/adafruit-gfx ... ing-images
Have you tried loading the example sketch "Adafruit_ImageReader→FeatherWingHX8357" as described here:
https://learn.adafruit.com/adafruit-3-5 ... s-spi-mode
more details here:
https://learn.adafruit.com/adafruit-gfx ... ing-images
- Stumpy_L
- Posts: 86
- Joined: Sun Jan 14, 2018 12:31 pm
Re: Image loading from SD to a 3.5 TFT
I had tried that example last night. I got the message that my SD card was OK but couldn't find the image file. I check it again tonight and it work fine, of course. A couple of questions. In order to display the image I had to swap D/C and CS. The answer may be in the other link you gave me but can I show an image then a graphic with out swapping those?
I see a lot on the Adafruit site about the Featherwings, what is that? Is it your version of a Arduino or I assume there's more to it.
You guys have great stuff and lots of helpful tutorials
Thanks so much for the help
John
I see a lot on the Adafruit site about the Featherwings, what is that? Is it your version of a Arduino or I assume there's more to it.
You guys have great stuff and lots of helpful tutorials
Thanks so much for the help
John
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Image loading from SD to a 3.5 TFT
Hi John,
The bitmap example here is for SPI mode so you can avoid pin swapping if you use the touchscreen paint examples that are also for SPI mode.
https://learn.adafruit.com/adafruit-3-5 ... ouchscreen
Adafruit has full line of development boards under the Feather Wing title. They are small, powerful and pleasure to use.
https://www.adafruit.com/feather
The bitmap example here is for SPI mode so you can avoid pin swapping if you use the touchscreen paint examples that are also for SPI mode.
https://learn.adafruit.com/adafruit-3-5 ... ouchscreen
Adafruit has full line of development boards under the Feather Wing title. They are small, powerful and pleasure to use.
https://www.adafruit.com/feather
- Stumpy_L
- Posts: 86
- Joined: Sun Jan 14, 2018 12:31 pm
Re: Image loading from SD to a 3.5 TFT
I figured there was, I'll check it out. So much to learn
Thanks again
John
Thanks again
John
Please be positive and constructive with your questions and comments.