Reset issue is now confirmed. seems that the I2C lines leaks enough supply voltage to the oled controller chip.
I have simple RC circuit on reset pin connected to the 1.8V regulated supply, but seems that it does not go low enough to fully reset the chip. When writing bad register values, those are not going back to reset values unless the toh is completely removed from phone for about 30 sec.
Might need to add there active reset driver or something... have to check for a good and lowcost solution. maybe MCP120 or similar.
(note to self: RT9818C-29GV)
Great stuff, I want one so please count me in if it's not too late (seems that I missed the poll, but would have voted: YES).
I just have one question abt the information displayed in the OLED; is it possible to have current date shown there (with time, battery %, and SMS info)? Does it fit and/or does it require some tweaks in SW-side?
is it possible to have current date shown there ... require some tweaks in SW-side?
It is just software, have to see what solution i come up with. too small is no good, maybe date could be shown only if there is no active notifications.
