ILI9341 + davega-v0.4 on Arduino nano

Projects Libraries
1

Hi,

I want to integrate the Adafruit_ILI9341 driver instead of ILI9225
in a davega-v0.4 program to use a 2.8" 240x320 TFT screen with arduino nano.

This is a programmable speedometer for VESC. (electric scooter controller and

others)
My project: Free Transfert - Service d'envoi de fichiers

Where

Source code davega:

Driver Adafruit_ILI9341 source code:

I would like to know what code to modify in the "davega" program.

Thanks

2

Since you have the original code try modifying it yourself. Start by having one work and then go through the code so you understand it. Check your pinouts etc. Draw a schematic,not a frizzy picture. At that point you should be in a great spot to make the exchange.

3

Okay, frankly I really don't know where to start but let's go there ..

Files program

627×828 35.4 KB

Screen pin

ILI9341 TFT	Nano RP2040 Connect
-------------------------------
VCC		3V3
GND		GND
CS		D10
RESET		RESET
DC		D9
SDI(MOSI)	D11 (SPI0 TX)
SCK		D13 (SPI0 SCK)
LED		3V3
SDA(MISO)	D12 (SPI0 RX)

The first file I found interesting :
davega_ili9225_screen.cpp

#include "davega_ili9225_screen.h"

#define TFT_RST 12
#define TFT_RS 9
#define TFT_CS 10 // SS
#define TFT_SDI 11 // MOSI
#define TFT_CLK 13 // SCK
#define TFT_LED 0

TFT_22_ILI9225 tft = TFT_22_ILI9225(TFT_RST, TFT_RS, TFT_CS, TFT_LED, 200);
TFT_22_ILI9225* p_tft = nullptr;

void DavegaILI9225Screen::init(t_davega_screen_config *config) {
DavegaScreen::init(config);
if (!p_tft) {
p_tft = &tft;
p_tft->begin();
p_tft->setOrientation(config->orientation);
p_tft->setBackgroundColor(COLOR_BLACK);
}
_tft = p_tft;
}

TFT_22_ILI9225* get_tft_22_ili9225()
{
return p_tft;
}

and :
davega_ili9225_screen.h

#ifndef DAVEGA_ILI9225_SCREEN_H
#define DAVEGA_ILI9225_SCREEN_H

#include "davega_screen.h"
#include <TFT_22_ILI9225.h>

class DavegaILI9225Screen: public DavegaScreen {
public:
void init(t_davega_screen_config* config) override;

protected:
TFT_22_ILI9225* _tft;
};

TFT_22_ILI9225* get_tft_22_ili9225();

#endif //DAVEGA_ILI9225_H

I think I can replace these 2 files

davega_ili9225_screen.cpp
davega_ili9225_screen.h
TFT_22_ILI9225.h

by

Adafruit_ILI9341.cpp
Adafruit_ILI9341.h
Adafruit_ILI9341.h (not sure)

Then rename in each line of program code
the name of the new driver

4

Sorry I cannot follow the frizzy picture.

5

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.