W. H. Heydt wrote: ↑
Wed Sep 04, 2019 2:09 pm
The instructions are linked from this http://www.neosecsolutions.com//product ... 8&cPath=20
The config.txt and cmdline.txt are steps 11 and 12. NOTE: These are for the Neosec 3.5" touchscreen. Your vendor *should* have comparable information for their product. If they don't, I would drop that vendor like a hot potato.
It appears that more than one chipset/configuration are on the market. The MHS 35 display seems to use a different chipset for the display and the GPIO pin usage is somewhat different. There is no RTC. I recently purchased such a display from Kuman/Amazon (https://www.amazon.com/gp/product/B07P7 ... UTF8&psc=1
) and I was able to follow the instructions and get a pretty display of the desktop. They have a nice set of instruction pages online in addition to the tiny "Quickstart" sheet included with the display. I initially had problems with getting readable text on the LXTerminal (cli) because it was too @#$! small for my old eyes.
Then, I went ahead and used a fresh copy of Buster and my normal HDMI display to get it set up and working properly. At that point, "raspi-config" showed a 720x480 default display which I reset to 320x480 and that helped some but a bit of further fiddling with "LXTerminal" Preferences increased the text size to 12 pts and bold. On reboot with the 3.5" display attached, all was happy.
The moral of the story is to not follow the "Quickstart" as written for the MHS 3.5. Start the setup with no 3,5"...just a normal monitor like a 21" HDMI type or a TV and get the RPi set up with that. Once setup to your satisfaction (including font size), go back to the "Quickstart" and do:
Code: Select all
sudo rm -rf LCD-show
git clone https://github.com/goodtft/LCD-show.git
chmod -R 755 LCD-show
And it all worked great!
This was done on an RPi3 with a Logitech K400 Keyboard/Mouse and the display mentioned above and the latest Raspbian Buster. (7/10).
Also, note that Etcher does not "see" the downloaded files until ".zip" is added to the end of the name...frustrating until you realize that.