cbm80amiga / n5110_gui_encoder_demo

Simple GUI with Encoder and Nokia LCD

N5110_GUI_encoder_demo

Simple GUI with Arduino, Encoder and Nokia LCD

YouTube video:

https://youtu.be/GHULqZpVpz4

Connections:

Encoder

Signal	Pin
PinA	2
PinB	4
Button	3

Nokia 5110 LCD

No	Signal	Pin
1	RST	9
2	CS/CE	10
3	DC	8
4	MOSI/DIN	11
5	SCK/CLK	13
6	VCC	Vcc
7	LIGHT	6
8	GND	GND

DHT11 (for demo)

No	Signal	Pin
1	VCC	7
2	DATA	2
3	NC
4	GND	GND

n5110_gui_encoder_demo's Issues

How to adjust the contrast and backlight of the display - code

Can you tell me the logic of the contrast and backlight control code?
Let's start with the contrast, for some reason I got a revision of the display, where a contrast of 10-15 units is normal, and more than the entire display turns black.
When I load your code, I immediately get a black screen, and of course I don't see the menu bars.
In the SETUP code section, I added a line after clearing the display:

   lcd.init();
   lcd.clrScr();
   lcd setContrast(10);

But when I fail in the CONTRAST menu, the display is black again - where is the DEFAULT contrast parameter set?
...
Backlight for some reason works the other way around!
255 - no backlight, moving the slider from 000 increases the backlight.
...
Why did you choose decimal values from 000 to 255 for the highlight scale, and hexadecimal values for the contrast scale?

Code not work on esp8266.

Help with code adaptation with esp8266 under the library Adafruit_PCD8544