Non-OLED/Nextion Screens

All things relating to OLED Screen(s)
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W4OG
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Joined: Mon Jul 22, 2019 7:02 pm

Non-OLED/Nextion Screens

Post by W4OG » Tue Oct 15, 2019 10:41 pm

I have a 1.8in TFT-LCD color screen. Can it work with PI-Star? Is so can anyone direct me to or thru the steps to get it to work?

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KE0FHS
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Re: Non-OLED/Nextion Screens

Post by KE0FHS » Tue Oct 15, 2019 11:01 pm

I have no experience with that type of screen, but FYI, here are the Type of Display Choices in the MMDVMHost Configuration section of Pi-Star's Configuration page:
OLED, Nextion, HD44780, TFT Serial, or LCDproc
73, Toshen, KE0FHS
Playing with Pi-Star (unofficial notes about setting up and using Pi-Star):
https://amateurradionotes.com/pi-star.htm

KE7FNS
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Re: Non-OLED/Nextion Screens

Post by KE7FNS » Tue Oct 15, 2019 11:44 pm

Yeah, like Toshen said those screens are not compatible with the current software. They could be if someone was willing to invest the time.

Do you have the model number or datasheet for it? I've got a 2.2 that I think uses SPI but its been so long since I've messed with it I can't remember.
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M0TQM
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Re: Non-OLED/Nextion Screens

Post by M0TQM » Thu Mar 12, 2020 11:36 pm

Uses the hardware SPI pins (SCK, MOSI, MISO, CE0, CE1) as well as GPIO #25 and #24. GPIO #18 can be used to PWM dim the backlight if you like. All other GPIO are unused.
Definitely SPI, I tried to connect one to my hotspot and no surprise it didn't work. Nextion is serial HMI, this one is SPI based.

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