Shelly Pro 4PM display colors swapped

[phiten]

@gemu2015 the config file for the Shelly Pro 4PM is here: https://github.com/arendst/Tasmota/blob/development/tasmota/displaydesc/ST7735S_Pro4PM_display.ini

But the colors blue and red are swapped. Which values do I need to have a look at? Couldn't find docs for that.

[gemu2015]

try this: cmd 36 is RGB,BGR order
36,1,C8 -> 36,1,C0

[phiten]

That sadly didn't change anything.

[gemu2015]

yes i see, cmd 36 is overwritten in rotation code, clr bit 3 on all 4 rotations:

like this
R,36
:0,60,00,00,00
:1,C4,1A,01,01
:2,A0,01,1A,02
:3,00,1A,01,03

[phiten]

Awesome thanks that worked. Will push the changes in a moment.

[phiten]

Hey @gemu2015,

I realized that I may have made a mistake by enabling the dark mode by default here: da81d25

Because the LVGL switches are then purple instead of green e.g.

So in my local config I now reverted the change and trying to figure out the colors again. Maybe you could have a look again:
#000000 is white
#0000FF is yellow
#FFFFFF is black
#FF0000 is turquoises
#00FF00 is purple

[gemu2015]

internally we work with RGB565
i don't use LVGL don't know how LVGL translates to RGB565
20/21 is display color invert
and bit 3 of code 36 ist flip BR
so you have 4 permutations.
i would try all and compare with existing LVGL pictures

[ggrote]

How did you flash the Shelly Pro 4PM with tasmota? Couldn't find any information on this.

[Noschvie]

@ggrote Have you got it flashed ? Which template are you using? Thanks!

[ggrote]

No haven't tried it yet.

[Noschvie]

MGOS32 to Tasmota shall do it, will try it...

[ramponis]

Can someone give me some details how to flash Shelly pro 4PM to tasmota?

Thank you

[Noschvie]

mgos32-to-tasmota32 v13.4.1, don't remember the Shelly firmware version, but didn't connect the Shelly to the internet.

[ramponis]

Tested but my pro 4pm seems to be blocked.
After flashing with mgos32, it reboots and reload shelly firmware.
Is there any information about the serial interface?
I want to try to flash it with serial

[sfromis]

The teardown images here shows a 6-pin socket adjacent to the Ethernet RJ45 connector
https://karlquinsland.com/shelly-pro-4pm-teardown/

That is very probably the "usual" Shelly flashing connector, with pins

TXD, RXD, 3V3, RST, IO0, GND

Images does not show the orientation, but it should be easy to verify which is GND.

[ramponis]

I will try and let you know...
Can someone that have already flashed it with MGOS32 post the template?

Thank you

[sfromis]

The Auto-config setup for the device includes the template along with further things also needed.
https://github.com/tasmota/autoconf/tree/main/raw/esp32/Shelly_Pro_4PM