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Add support for Arduino Nesso-N1 (ST7789P3) #220

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083f383
Add support for Arduino Nesso-N1 (ST7789P3)
tyeth Nov 19, 2025
ec36715
cleanup
tyeth Dec 4, 2025
00e978f
clang-format
tyeth Dec 4, 2025
aba823e
Update .clang-format rules: mention v18.1.3
tyeth Dec 4, 2025
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4 changes: 4 additions & 0 deletions .gitignore
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Expand Up @@ -6,3 +6,7 @@ doxygen_sqlite3.db
html
/.vs
*.DS_Store
.vscode/
build/
.vs/
.pio/
33 changes: 33 additions & 0 deletions Adafruit_ST7789.cpp
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Expand Up @@ -37,6 +37,30 @@ Adafruit_ST7789::Adafruit_ST7789(SPIClass *spiClass, int8_t cs, int8_t dc,
: Adafruit_ST77xx(240, 320, spiClass, cs, dc, rst) {}
#endif // end !ESP8266

#if defined(ARDUINO_ARDUINO_NESSO_N1)
Adafruit_ST7789::Adafruit_ST7789(int8_t cs, ExpanderPin *dc, ExpanderPin *rst)
: Adafruit_ST77xx(240, 320, cs, dc, rst) {}

Adafruit_ST7789::Adafruit_ST7789(int8_t cs, int8_t dc, ExpanderPin *rst)
: Adafruit_ST77xx(240, 320, cs, dc, rst) {}

Adafruit_ST7789::Adafruit_ST7789(ExpanderPin *cs, ExpanderPin *dc,
ExpanderPin *rst)
: Adafruit_ST77xx(240, 320, cs, dc, rst) {}

Adafruit_ST7789::Adafruit_ST7789(SPIClass *spiClass, int8_t cs, int8_t dc,
ExpanderPin *rst)
: Adafruit_ST77xx(240, 320, spiClass, cs, dc, rst) {}

Adafruit_ST7789::Adafruit_ST7789(SPIClass *spiClass, int8_t cs, ExpanderPin *dc,
ExpanderPin *rst)
: Adafruit_ST77xx(240, 320, spiClass, cs, dc, rst) {}

Adafruit_ST7789::Adafruit_ST7789(SPIClass *spiClass, ExpanderPin *cs,
ExpanderPin *dc, ExpanderPin *rst)
: Adafruit_ST77xx(240, 320, spiClass, cs, dc, rst) {}
#endif

// SCREEN INITIALIZATION ***************************************************

// Rather than a bazillion writecommand() and writedata() calls, screen
Expand Down Expand Up @@ -102,6 +126,15 @@ void Adafruit_ST7789::init(uint16_t width, uint16_t height, uint8_t mode) {
// case-by-case basis.)

commonInit(NULL);

#if defined(ARDUINO_ARDUINO_NESSO_N1)
if (width == 135 && height == 240 && _rstExp != nullptr) {
_rowstart = 40;
_rowstart2 = 40;
_colstart = 53;
_colstart2 = 52;
} else
#endif
if (width == 240 && height == 240) {
// 1.3", 1.54" displays (right justified)
_rowstart = (320 - height);
Expand Down
34 changes: 24 additions & 10 deletions Adafruit_ST7789.h
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Expand Up @@ -2,23 +2,37 @@
#define _ADAFRUIT_ST7789H_

#include "Adafruit_ST77xx.h"
// extern class ExpanderPin;

/// Subclass of ST77XX type display for ST7789 TFT Driver
class Adafruit_ST7789 : public Adafruit_ST77xx {
public:
public:
Adafruit_ST7789(int8_t cs, int8_t dc, int8_t mosi, int8_t sclk,
int8_t rst = -1);
Adafruit_ST7789(int8_t cs, int8_t dc, int8_t rst);
#if !defined(ESP8266)
Adafruit_ST7789(SPIClass *spiClass, int8_t cs, int8_t dc, int8_t rst);
#endif // end !ESP8266
int8_t rst = -1);
Adafruit_ST7789(int8_t cs, int8_t dc, int8_t rst);
#if !defined(ESP8266)
Adafruit_ST7789(SPIClass *spiClass, int8_t cs, int8_t dc, int8_t rst);
#endif // end !ESP8266
#if defined(ARDUINO_ARDUINO_NESSO_N1)
Adafruit_ST7789(int8_t cs, ExpanderPin *dc, ExpanderPin *rst = NULL);
Adafruit_ST7789(int8_t cs, int8_t dc, ExpanderPin *rst = NULL);
Adafruit_ST7789(ExpanderPin *cs, ExpanderPin *dc, ExpanderPin *rst = NULL);
Adafruit_ST7789(SPIClass *spiClass, int8_t cs, int8_t dc, ExpanderPin *rst);
Adafruit_ST7789(SPIClass *spiClass, int8_t cs, ExpanderPin *dc, ExpanderPin *rst);
Adafruit_ST7789(SPIClass *spiClass, ExpanderPin *cs, ExpanderPin *dc, ExpanderPin *rst);
#endif

void setRotation(uint8_t m);
void init(uint16_t width, uint16_t height, uint8_t spiMode = SPI_MODE0);
void setRotation(uint8_t m);
void init(uint16_t width, uint16_t height, uint8_t spiMode = SPI_MODE0);

protected:
uint8_t _colstart2 = 0, ///< Offset from the right
_rowstart2 = 0; ///< Offset from the bottom
uint8_t _colstart2 = 0, ///< Offset from the right
_rowstart2 = 0; ///< Offset from the bottom
#if defined(ARDUINO_ARDUINO_NESSO_N1)
ExpanderPin *cs = nullptr;
ExpanderPin *dc = nullptr;
ExpanderPin *rst = nullptr;
#endif

private:
uint16_t windowWidth;
Expand Down
27 changes: 27 additions & 0 deletions Adafruit_ST77xx.cpp
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Expand Up @@ -83,6 +83,33 @@ Adafruit_ST77xx::Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass *spiClass,
: Adafruit_SPITFT(w, h, spiClass, cs, dc, rst) {}
#endif // end !ESP8266

#if defined(ARDUINO_ARDUINO_NESSO_N1)
Adafruit_ST77xx::Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass *spiClass,
int8_t cs, ExpanderPin *dc, ExpanderPin *rst)
: Adafruit_SPITFT(w, h, spiClass, cs, dc, rst) {}

Adafruit_ST77xx::Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass *spiClass,
int8_t cs, int8_t dc, ExpanderPin *rst)
: Adafruit_SPITFT(w, h, spiClass, cs, dc, rst) {}

Adafruit_ST77xx::Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass *spiClass,
ExpanderPin *cs, ExpanderPin *dc,
ExpanderPin *rst)
: Adafruit_SPITFT(w, h, spiClass, cs, dc, rst) {}

Adafruit_ST77xx::Adafruit_ST77xx(uint16_t w, uint16_t h, int8_t cs,
ExpanderPin *dc, ExpanderPin *rst)
: Adafruit_SPITFT(w, h, cs, dc, rst) {}

Adafruit_ST77xx::Adafruit_ST77xx(uint16_t w, uint16_t h, int8_t cs, int8_t dc,
ExpanderPin *rst)
: Adafruit_SPITFT(w, h, cs, dc, rst) {}

Adafruit_ST77xx::Adafruit_ST77xx(uint16_t w, uint16_t h, ExpanderPin *cs,
ExpanderPin *dc, ExpanderPin *rst)
: Adafruit_SPITFT(w, h, cs, dc, rst) {}
#endif

/**************************************************************************/
/*!
@brief Companion code to the initiliazation tables. Reads and issues
Expand Down
49 changes: 32 additions & 17 deletions Adafruit_ST77xx.h
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Expand Up @@ -25,18 +25,19 @@
#ifndef _ADAFRUIT_ST77XXH_
#define _ADAFRUIT_ST77XXH_

#include "Arduino.h"
#include "Print.h"
#include <Adafruit_GFX.h>
#include <Adafruit_SPITFT.h>
#include <Adafruit_SPITFT_Macros.h>

#define ST7735_TFTWIDTH_128 128 // for 1.44 and mini
#define ST7735_TFTWIDTH_80 80 // for mini
#define ST7735_TFTHEIGHT_128 128 // for 1.44" display
#define ST7735_TFTHEIGHT_160 160 // for 1.8" and mini display
#include "Arduino.h"
#include "Print.h"

#define ST7735_TFTWIDTH_128 128 // for 1.44 and mini
#define ST7735_TFTWIDTH_80 80 // for mini
#define ST7735_TFTHEIGHT_128 128 // for 1.44" display
#define ST7735_TFTHEIGHT_160 160 // for 1.8" and mini display

#define ST_CMD_DELAY 0x80 // special signifier for command lists
#define ST_CMD_DELAY 0x80 // special signifier for command lists

#define ST77XX_NOP 0x00
#define ST77XX_SWRESET 0x01
Expand Down Expand Up @@ -87,31 +88,45 @@

/// Subclass of SPITFT for ST77xx displays (lots in common!)
class Adafruit_ST77xx : public Adafruit_SPITFT {
public:
public:
Adafruit_ST77xx(uint16_t w, uint16_t h, int8_t _CS, int8_t _DC, int8_t _MOSI,
int8_t _SCLK, int8_t _RST = -1, int8_t _MISO = -1);
Adafruit_ST77xx(uint16_t w, uint16_t h, int8_t CS, int8_t RS,
int8_t RST = -1);
#if !defined(ESP8266)
Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass *spiClass, int8_t CS,
Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass* spiClass, int8_t CS,
int8_t RS, int8_t RST = -1);
#endif // end !ESP8266
#endif // end !ESP8266
#if defined(ARDUINO_ARDUINO_NESSO_N1)
Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass* spiClass, int8_t cs,
ExpanderPin* dc, ExpanderPin* rst = NULL);
Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass* spiClass, int8_t cs,
int8_t dc, ExpanderPin* rst = NULL);
Adafruit_ST77xx(uint16_t w, uint16_t h, SPIClass* spiClass, ExpanderPin* cs,
ExpanderPin* dc, ExpanderPin* rst = NULL);
Adafruit_ST77xx(uint16_t w, uint16_t h, int8_t cs, ExpanderPin* dc,
ExpanderPin* rst = NULL);
Adafruit_ST77xx(uint16_t w, uint16_t h, int8_t cs, int8_t dc,
ExpanderPin* rst = NULL);
Adafruit_ST77xx(uint16_t w, uint16_t h, ExpanderPin* cs, ExpanderPin* dc,
ExpanderPin* rst = NULL);
#endif

void setAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h);
void setRotation(uint8_t r);
void enableDisplay(boolean enable);
void enableTearing(boolean enable);
void enableSleep(boolean enable);

protected:
uint8_t _colstart = 0, ///< Some displays need this changed to offset
_rowstart = 0, ///< Some displays need this changed to offset
spiMode = SPI_MODE0; ///< Certain display needs MODE3 instead
protected:
uint8_t _colstart = 0, ///< Some displays need this changed to offset
_rowstart = 0, ///< Some displays need this changed to offset
spiMode = SPI_MODE0; ///< Certain display needs MODE3 instead

void begin(uint32_t freq = 0);
void commonInit(const uint8_t *cmdList);
void displayInit(const uint8_t *addr);
void commonInit(const uint8_t* cmdList);
void displayInit(const uint8_t* addr);
void setColRowStart(int8_t col, int8_t row);
};

#endif // _ADAFRUIT_ST77XXH_
#endif // _ADAFRUIT_ST77XXH_
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