@m5stack said in Change I2C pin in M5GFX Library (to use With ATOM LITE):
if you wanna change the I2C pin. you could use this code.
#include <M5UnitOLED.h> //M5UnitOLED display; // default setting M5UnitOLED display ( 21, 22, 400000 ); // SDA, SCL, FREQ
tnks a lot !!!
Hi all,
I saw a seven segment font in the M5GFX library but I dont understand How to call it in
canvas.setFont() function....
I need to display 4 digit in 7 seg style with a dot in the middle (es: 25.10) as big as possible...
tnks in advance...
tnks a lot !!!!
this sketch is working for me
#include <M5UnitOLED.h>
M5UnitOLED display ( 26, 32, 400000 ); // SDA, SCL, FREQ
M5Canvas canvas(&display);
static constexpr char text[] = "Hello world ! こんにちは世界！ this is long long string sample. 寿限無、寿限無、五劫の擦り切れ、海砂利水魚の、水行末・雲来末・風来末、喰う寝る処に住む処、藪ら柑子の藪柑子、パイポ・パイポ・パイポのシューリンガン、シューリンガンのグーリンダイ、グーリンダイのポンポコピーのポンポコナの、長久命の長助";
static constexpr size_t textlen = sizeof(text) / sizeof(text[0]);
int textpos = 0;
int scrollstep = 2;
void setup(void)
{
display.begin();
if (display.width() < display.height())
{
display.setRotation(display.getRotation() ^ 1);
}
canvas.setColorDepth(1); // mono color
canvas.setFont(&fonts::lgfxJapanMinchoP_32);
canvas.setTextWrap(false);
canvas.setTextSize(2);
canvas.createSprite(display.width() + 64, 72);
}
void loop(void)
{
int32_t cursor_x = canvas.getCursorX() - scrollstep;
if (cursor_x <= 0)
{
textpos = 0;
cursor_x = display.width();
}
canvas.setCursor(cursor_x, 0);
canvas.scroll(-scrollstep, 0);
while (textpos < textlen && cursor_x <= display.width())
{
canvas.print(text[textpos++]);
cursor_x = canvas.getCursorX();
}
display.waitDisplay();
canvas.pushSprite(&display, 0, (display.height() - canvas.height()) >> 1);
}
tnks for the reply
I tried to add wire.h library and call Wire.begin(26, 32) but no joy....
//The Game of Life, also known simply as Life, is a cellular automaton
//devised by the British mathematician John Horton Conway in 1970.
// https://en.wikipedia.org/wiki/Conway's_Game_of_Life
#include <Wire.h>
#include "M5Atom.h"
//#include <Wire.h>
#include <Arduino.h>
//#include <Wire.h>
#include <M5GFX.h>
#include <M5UnitOLED.h>
//#include <M5UnitLCD.h>
//M5GFX display;
M5UnitOLED display;
//M5UnitLCD display;
M5Canvas canvas[2];
void setup(void)
{
M5.begin(); // Wire.begin() must be after M5.begin()
Wire.begin(26, 32); // Atom Matrix I2C GPIO Pin is 26 and 32 <- Important
display.begin();
display.setEpdMode(epd_mode_t::epd_fastest);
if (display.width() < display.height())
{
display.setRotation(display.getRotation() ^ 1);
display.setPivot(display.width() /2 -0.5, display.height() /2 - 0.5);
}
for (int i = 0; i < 2; i++)
{
canvas[i].setColorDepth(8);
canvas[i].createSprite(std::min(192, display.width()>>1), std::min(160, display.height()>>1));
canvas[i].createPalette();
canvas[i].setPaletteColor(1, TFT_WHITE);
canvas[i].setPivot(canvas[i].width() /2 -0.5, canvas[i].height() /2 - 0.5);
}
canvas[0].setTextColor(1);
canvas[0].setTextDatum(textdatum_t::bottom_center);
canvas[0].drawString("Conway's", canvas[0].width() >> 1, canvas[0].height() >> 1);
canvas[0].setTextDatum(textdatum_t::top_center);
canvas[0].drawString("Game of Life", canvas[0].width() >> 1, canvas[0].height() >> 1);
canvas[0].pushRotateZoom(&display, 0, (float)display.width() / canvas[0].width(), (float)display.height() / canvas[0].height());
delay(1000);
}
void loop(void)
{
bool flip = false;
int width = canvas[flip].width();
int height = canvas[flip].height();
int y = 1;
do
{
int x = 1;
do
{
if (random(6) == 0) { canvas[flip].drawPixel(x, y, 1); }
} while (++x < width - 1);
} while (++y < height - 1);
int diff;
do
{
flip = !flip;
diff = 0;
auto old_buf = (uint8_t*)canvas[!flip].getBuffer();
auto new_buf = (uint8_t*)canvas[ flip].getBuffer();
int width = canvas[flip].width();
int height = canvas[flip].height();
int py;
int y = height - 1;
int ny = 0;
do
{
py = y;
y = ny;
if (++ny == height) ny = 0;
int px;
int x = width - 1;
int nx = 0;
do
{
px = x;
x = nx;
if (++nx == width) nx = 0;
int neighbors = old_buf[px + py * width]
+ old_buf[ x + py * width]
+ old_buf[nx + py * width]
+ old_buf[px + y * width]
+ old_buf[nx + y * width]
+ old_buf[px + ny * width]
+ old_buf[ x + ny * width]
+ old_buf[nx + ny * width];
int idx = x + y * width;
bool flg = (neighbors == 3) || (neighbors == 2 && old_buf[idx]);
if (flg != new_buf[idx])
{
new_buf[idx] = flg;
++diff;
}
} while (nx);
} while (ny);
canvas[flip].pushRotateZoom(&display, 0, (float)display.width() / width, (float)display.height() / height);
} while (diff);
}
with a I2C scanner and the screen connected I found the oled address
#include <Wire.h>
void setup()
{
Wire.begin(26, 32);
Serial.begin(115200);
while (!Serial); // Leonardo: wait for serial monitor
Serial.println("\nI2C Scanner");
}
void loop()
{
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknown error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}
serial moniror output:
I2C Scanner
Scanning...
I2C device found at address 0x3C !
done
@otosan-maker said in ATOM LITE + OLED Unit 1.3" 128 × 64 Display:
...and give a try in the loop with a static string ...
sorry but I don't understand ...
I deleted :
static constexpr const char* text[] = { text0, text1, text2, text3, text4, text5, text6, text7 };
this is the compiling error message
Arduino:1.8.13 (Windows 10), Scheda:"M5Stick-C, Default, 1500000, None
C:\Users\Documents\Arduino\OLEDDAJE\OLEDDAJE.ino: In function 'void loop()':
OLEDDAJE:41:39: error: 'text' was not declared in this scope
canvas.printf("%04d:%s\r\n", count, text[count & 7]);
^
Più di una libreria trovata per "SPI.h"
Usata: C:\Users\AppData\Local\Arduino15\packages\m5stack\hardware\esp32\1.0.7\libraries\SPI
Non usata: C:\Users\Documents\Arduino\libraries\SPI
exit status 1
'text' was not declared in this scope
Questo report potrebbe essere più ricco di informazioni abilitando l'opzione
"Mostra un output dettagliato durante la compilazione"
in "File -> ImpostazioniI tryed to change this lines in the M5UnitOLED.h file from
static constexpr std::uint8_t M5_UNIT_OLED_SDA = 21;
static constexpr std::uint8_t M5_UNIT_OLED_SCL = 22;
to
static constexpr std::uint8_t M5_UNIT_OLED_SDA = 26;
static constexpr std::uint8_t M5_UNIT_OLED_SCL = 32;
to match the ATOM GROVE I2C pin ....
but no joy........
@m5stack said in ATOM LITE + OLED Unit 1.3" 128 × 64 Display:
you need to
#include <M5UnitOLED.h>#include <M5UnitOLED.h> M5UnitOLED display; M5Canvas canvas(&display); static constexpr char text[] = "Hello world ! こんにちは世界！ this is long long string sample. 寿限無、寿限無、五劫の擦り切れ、海砂利水魚の、水行末・雲来末・風来末、喰う寝る処に住む処、藪ら柑子の藪柑子、パイポ・パイポ・パイポのシューリンガン、シューリンガンのグーリンダイ、グーリンダイのポンポコピーのポンポコナの、長久命の長助"; static constexpr size_t textlen = sizeof(text) / sizeof(text[0]); int textpos = 0; int scrollstep = 2; void setup(void) { display.init(); display.setRotation(2); canvas.setColorDepth(1); // mono color canvas.setFont(&fonts::lgfxJapanMinchoP_32); canvas.setTextWrap(false); canvas.setTextSize(2); canvas.createSprite(display.width() + 64, 72); } void loop(void) { int32_t cursor_x = canvas.getCursorX() - scrollstep; if (cursor_x <= 0) { textpos = 0; cursor_x = display.width(); } canvas.setCursor(cursor_x, 0); canvas.scroll(-scrollstep, 0); while (textpos < textlen && cursor_x <= display.width()) { canvas.print(text[textpos++]); cursor_x = canvas.getCursorX(); } display.waitDisplay(); canvas.pushSprite(&display, 0, (display.height() - canvas.height()) >> 1); }
this sketch compile but doesn't display nothing
no error message
this is the atom lite boot on serial monitor after uploaded sketch
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 188777542, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5816
entry 0x400806ac
where are the pins assignements for I2C???
I think I have to modify the library ...
I think I have to change the i2c pin in the library..... but where??
this is a test sketch:
#include <M5GFX.h>
M5GFX display;
M5Canvas canvas(&display);
static constexpr char text0[] = "hello world";
static constexpr char text1[] = "this";
static constexpr char text2[] = "is";
static constexpr char text3[] = "text";
static constexpr char text4[] = "log";
static constexpr char text5[] = "vertical";
static constexpr char text6[] = "scroll";
static constexpr char text7[] = "sample";
static constexpr const char* text[] = { text0, text1, text2, text3, text4, text5, text6, text7 };
void setup(void)
{
display.begin();
if (display.isEPD())
{
display.setEpdMode(epd_mode_t::epd_fastest);
display.invertDisplay(true);
display.clear(TFT_BLACK);
}
if (display.width() < display.height())
{
display.setRotation(display.getRotation() ^ 1);
}
canvas.setColorDepth(1); // mono color
canvas.createSprite(display.width(), display.height());
canvas.setTextSize((float)canvas.width() / 160);
canvas.setTextScroll(true);
}
void loop(void)
{
static int count = 0;
canvas.printf("%04d:%s\r\n", count, text[count & 7]);
canvas.pushSprite(0, 0);
++count;
}
this is the arduino ide output:
Lo sketch usa 301153 byte (22%) dello spazio disponibile per i programmi. Il massimo è 1310720 byte.
Le variabili globali usano 17052 byte (5%) di memoria dinamica, lasciando altri 310628 byte liberi per le variabili locali. Il massimo è 327680 byte.
esptool.py v3.0-dev
Serial port COM8
Connecting.....
Chip is ESP32-PICO-D4 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, Embedded Flash, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: d8:a0:1d:5c:95:0c
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 1500000
Changed.
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 8192 bytes to 47...
Writing at 0x0000e000... (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds (effective 4096.1 kbit/s)...
Hash of data verified.
Compressed 15856 bytes to 10276...
Writing at 0x00001000... (100 %)
Wrote 15856 bytes (10276 compressed) at 0x00001000 in 0.1 seconds (effective 991.0 kbit/s)...
Hash of data verified.
Compressed 301264 bytes to 153424...
Writing at 0x00010000... (10 %)
Writing at 0x00014000... (20 %)
Writing at 0x00018000... (30 %)
Writing at 0x0001c000... (40 %)
Writing at 0x00020000... (50 %)
Writing at 0x00024000... (60 %)
Writing at 0x00028000... (70 %)
Writing at 0x0002c000... (80 %)
Writing at 0x00030000... (90 %)
Writing at 0x00034000... (100 %)
Wrote 301264 bytes (153424 compressed) at 0x00010000 in 2.8 seconds (effective 870.7 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 128...
Writing at 0x00008000... (100 %)
Wrote 3072 bytes (128 compressed) at 0x00008000 in 0.0 seconds (effective 1365.3 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting via RTS pin...
Trovata libreria non valida in C:\Users\Documents\Arduino\libraries\M5Stack_LovyanLauncher-master: Nessun header file (.h) trovato in C:\Users\Documents\Arduino\libraries\M5Stack_LovyanLauncher-master
Trovata libreria non valida in C:\Users\Documents\Arduino\libraries\URM-master: Nessun header file (.h) trovato in C:\Users\Documents\Arduino\libraries\URM-master
this is the serial monitor booting the atom lite
ets Jun 8 2016 00:22:57
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 188777542, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5816
entry 0x400806ac