OLED 1.3” screensaver on ZUMSpot does not work.

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K1UH
Posts: 6
Joined: Fri Apr 03, 2020 5:59 pm

OLED 1.3” screensaver on ZUMSpot does not work.

Post by K1UH »

My ZUMspot functions perfectly as a DMR hotspot.
(purchased from HRO USA)
The OLED shows MMVDM logo when idle.
The OLED displays DMR activity info during calls.
But the screensaver never activates.

I am running on RasPi Zero/W with ZumSpot:
Pi-Star:3.4.17 / Dashboard: 20200221
Detected MMDVM_HS (GPIO): /dev/ttyAMA0 (ZUMspot-v1.4.16 20190211 14.7456MHz ADF7021 FW by CA6JAU GitID #8cf46ca)

my /etc/mmdvmhost has section

[OLED]
Type=6
Brightness=0
Invert=0
Scroll=0
Rotate=0
Cast=0
LogoScreensaver=1

These OLED functions DO work when configured:
Invert= 0 / 1 (wt/blk, blk/wt)
Rotate= 0 / 1 (0, 180 flip)

These functions do NOT work:
Scroll=
LogoScreensaver=

I tried updating..
I get ‘no updates found’ when update or upgrade.
I am not sure where to look. Driver? Firmware? Hardware?
Appreciate the help.

Thanks,
Greg
K1UH
Posts: 6
Joined: Fri Apr 03, 2020 5:59 pm

Re: OLED 1.3” screensaver on ZUMSpot does not work.

Post by K1UH »

Right. I am definitely unfamiliar with the meaning of those parameters and I do appreciate your explanation.

What puzzles me is: if the point of screensaver / scroll is to prevent OLED pixel wear, why leave the MMDVM logo burning practically forever when the hotspot is idle. In my case DMR mode is active sporadically maybe a few minutes during calls so acting to minimize display burn then doesn’t seem worth it.

I will try to take a look at MMDVM source code but I suspect it’s above my ability to modify or improve.

Thanks again for your help.
K1UH
Posts: 6
Joined: Fri Apr 03, 2020 5:59 pm

Re: OLED 1.3” screensaver on ZUMSpot does not work.

Post by K1UH »

I upgraded my hotspot to the latest image Raspbian "Buster" Pi-Star:4.1.0 / Dashboard: 20200406. (Pi-Star_RPi_V4.1.0_26-Mar-2020.zip) Now OLED is working as I wish. OLED is Full dark when idle, displays DMR info during calls / listening.

[OLED]
Type=6
Brightness=0
Invert=0
Scroll=1
Rotate=0
Cast=0
LogoScreensaver=0
w1bic
Posts: 2
Joined: Thu Apr 09, 2020 3:53 pm

Re: OLED 1.3” screensaver on ZUMSpot does not work.

Post by w1bic »

Mine stopped showing the MMDVM when idle this morning, any ideas???

Scott W1BIC
M1DNS
Pi-Star Team
Posts: 1388
Joined: Thu Apr 05, 2018 5:30 am

Re: OLED 1.3” screensaver on ZUMSpot does not work.

Post by M1DNS »

w1bic wrote:Mine stopped showing the MMDVM when idle this morning, any ideas???

Scott W1BIC
Logoscreensaver=1

Sent from my SM-G935F using Tapatalk

Andrew M1DNS.
Pi-star Admin Team.
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