Wish M5Stack - ESP32 Support

[Chris160179]

Hello every Body,

is there someone how likes to write a Library or Wrapper for the M5Stack Board?

Official Site:
https://m5stack.com/

GitHub Project with Arduino Library and some cool examples:
https://github.com/m5stack/M5Stack

There are 3 Boards called "Cores":
- ESP32 Basic Core IoT Development Kit
- ESP32 GREY Development Kit with 9Axis Sensor
- M5Stack FIRE IoT Development Kit (PSRAM 2.0)​

There are many "Modules" and "Units" available.


The general use in B4r is possible.
It works to compile and run basic code but the Board has a SPI ILI9341 TFT and Hardware Buttons.
They didn´t work.

I changed the SPI Pins in the "Adafruit_ILI9341.cpp" library like this:

// Constructor when using hardware SPI.  Faster, but must use SPI pins
// specific to each board type (e.g. 11,13 for Uno, 51,52 for Mega, etc.)
Adafruit_ILI9341::Adafruit_ILI9341(int8_t cs, int8_t dc, int8_t rst) : Adafruit_GFX(ILI9341_TFTWIDTH, ILI9341_TFTHEIGHT) {
 // _cs   = cs;
 // _dc   = dc;
 // _rst  = rst;
 // hwSPI = true;
 // _mosi  = _sclk = 0;
  _cs   = 15;
  _dc   = 2;
  _mosi  = 13;
  _miso = 12;
  _sclk = 14;
  _rst  = -1;
  hwSPI = false;
}

Look here in Post #7: https://www.b4x.com/android/forum/t...dafruit_ili9341-touch-sensitive-screen.75276/
But have no succsess.




I have purchased the Grey Board with Keyboard Faces:

The Arduino examples are running very good but i failed to use the Arduion Librarys in B4r to use the TFT.

Please Help

THX @all

PS. sorry for my bad English

 

[Chris160179]

Hello every Body

Sorry that`s embarrassing, after i make an B4r update from v2.51 to 3.00 now i´m able to use the TFT without problems.

Here the Code:

#Region Project Attributes
    #AutoFlushLogs: True
    #CheckArrayBounds: True
    #StackBufferSize: 300
#End Region

Sub Process_Globals
    Public const APP_Version As String = "v1.0"                                    'Version
    Public Serial1 As Serial                                                    'Debug
    Private WiFiConnect As ESP8266WiFi                                            'WiFi
    Public Debug As Boolean = True                                                'Show Debug Messages
End Sub

Private Sub AppStart
    Serial1.Initialize(115200)
    Delay(1500)                                                                    'short delay to show debug Messages
    If Debug Then Log("( Info  ) AppStart")
    If Debug Then Log("( Info  ) APP_Version: ", APP_Version)
    If Debug Then Log("( Info  ) Show Debug Messages: ", getBoolean(Debug))
    'WLAN
    WiFiConnect.Connect2("[YOUR ACCESS POINT]", "[AP PASSWORD]")
    'C Code
    RunNative("setup", Null)
    RunNative("fill", Null)
    RunNative("text", Null)
    RunNative("number", Null)
    RunNative("hex", Null)
    RunNative("bigtxt", Null)
    RunNative("font2", Null)
    RunNative("formatting", Null)
End Sub



#Region "Helpers"
    Private Sub getBoolean (bol As Boolean) As String                            'Convert Boolen to String
        If bol = True Then
            Return "True"
        Else
            Return "False"
        End If
    End Sub
#End Region



#if C
#include <M5Stack.h>

#define TFT_GREY 0x5AEB // New colour


void setup(B4R::Object* unused) {
  M5.begin();
  // M5.Lcd.setRotation(2);
}
  
void fill(B4R::Object* unused) {
  // Fill screen with grey so we can see the effect of printing with and without
  // a background colour defined
  M5.Lcd.fillScreen(TFT_GREY);
}
 
void text(B4R::Object* unused) {
  // Set "cursor" at top left corner of display (0,0) and select font 2
  // (cursor will move to next line automatically during printing with 'M5.Lcd.println'
  //  or stay on the line is there is room for the text with M5.Lcd.print)
  M5.Lcd.setCursor(0, 0, 2);
  // Set the font colour to be white with a black background, set text size multiplier to 1
  M5.Lcd.setTextColor(TFT_WHITE,TFT_BLACK); 
  M5.Lcd.setTextSize(1);
  // We can now plot text on screen using the "print" class
  M5.Lcd.println("Hello World!");
}
 
void number(B4R::Object* unused) {
  // Set the font colour to be yellow with no background, set to font 7
  M5.Lcd.setTextColor(TFT_YELLOW); M5.Lcd.setTextFont(7);
  M5.Lcd.println(1234.56);
}
 
void hex(B4R::Object* unused) {
  // Set the font colour to be red with black background, set to font 4
  M5.Lcd.setTextColor(TFT_RED,TFT_BLACK);    M5.Lcd.setTextFont(4);
  //M5.Lcd.println(3735928559L, HEX); // Should print DEADBEEF
}

void bigtxt(B4R::Object* unused) {
  // Set the font colour to be green with black background, set to font 4
  M5.Lcd.setTextColor(TFT_GREEN,TFT_BLACK);
  M5.Lcd.setTextFont(4);
  M5.Lcd.println("Groop");
  M5.Lcd.println("I implore thee,");
}

void font2(B4R::Object* unused) {
  // Change to font 2
  M5.Lcd.setTextFont(2);
  M5.Lcd.println("my foonting turlingdromes.");
  M5.Lcd.println("And hooptiously drangle me");
  M5.Lcd.println("with crinkly bindlewurdles,");
  // This next line is deliberately made too long for the display width to test
  // automatic text wrapping onto the next line
  M5.Lcd.println("Or I will rend thee in the gobberwarts with my blurglecruncheon, see if I don't!");
}
 
void formatting(B4R::Object* unused) {
  // Test some print formatting functions
  float fnumber = 123.45;
   // Set the font colour to be blue with no background, set to font 4
  M5.Lcd.setTextColor(TFT_BLUE);    M5.Lcd.setTextFont(4);
  M5.Lcd.print("Float = "); M5.Lcd.println(fnumber);           // Print floating point number
  M5.Lcd.print("Binary = "); M5.Lcd.println((int)fnumber, BIN); // Print as integer value in binary
  M5.Lcd.print("Hexadecimal = "); M5.Lcd.println((int)fnumber, HEX); // Print as integer number in Hexadecimal
//  delay(10000);
}
#End If

Before I did the update, I had a lot of library errors, so I relinked the dependent libraries in the include statements.
That was the problem.
Now after the update, it compiles without Errors.

I hope it helps.

THX @all


PS. If anyone is interested I would be happy about a library or a wrapper anyway.

 

[Mickster]

This is a very intriguing product range and I have just placed an order. I hope it's something that B4R can handle.

 

[Chris160179]

You can use the code above to program the M5 to test the Display and you can use inline c but there is no B4r library at this time.

 

[gma]

Hi, just found this M5Stack lineup, I'm interested in libs too!