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Edzelf / ESP32-Radio

Internet radio based on ESP32, VS1053 and a TFT screen.
GNU General Public License v3.0
964 stars 227 forks source link

SSD1306 improvements #311

Open h1aji opened 4 years ago

h1aji commented 4 years ago

I was wondering if there is any plan improving code for LCD SSD1306 I tried to use it but the fonts are looking very ugly. Is there any way to make use of: https://github.com/adafruit/Adafruit_SSD1306 and https://github.com/olikraus/U8g2_for_Adafruit_GFX Which should also simplify code. Also rotation for this LCD doesnt work. Tried #define dsp_setRotation() tft->setRotation ( 3 ) // Use landscape format (3 for upside down) Thanks

h1aji commented 4 years ago

I managed to fix fonts appearance by adding these changes in SSD1306.h

const uint8_t SSD1306FONTWIDTH = 6 ;
const uint8_t SSD1306font[] = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //   0 
  0x00, 0x00, 0x00, 0x2f, 0x00, 0x00, // ! 1 
  0x00, 0x00, 0x07, 0x00, 0x07, 0x00, // " 2 
  0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14, // # 3 
  0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12, // $ 4 
  0x00, 0x62, 0x64, 0x08, 0x13, 0x23, // % 5 
  0x00, 0x36, 0x49, 0x55, 0x22, 0x50, // & 6 
  0x00, 0x00, 0x05, 0x03, 0x00, 0x00, // ' 7 
  0x00, 0x00, 0x1c, 0x22, 0x41, 0x00, // ( 8 
  0x00, 0x00, 0x41, 0x22, 0x1c, 0x00, // ) 9 
  0x00, 0x14, 0x08, 0x3E, 0x08, 0x14, // * 10
  0x00, 0x08, 0x08, 0x3E, 0x08, 0x08, // + 11
  0x00, 0x00, 0x00, 0xA0, 0x60, 0x00, // , 12
  0x00, 0x08, 0x08, 0x08, 0x08, 0x08, // - 13
  0x00, 0x00, 0x60, 0x60, 0x00, 0x00, // . 14
  0x00, 0x20, 0x10, 0x08, 0x04, 0x02, // / 15
  0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E, // 0 16
  0x00, 0x00, 0x42, 0x7F, 0x40, 0x00, // 1 17
  0x00, 0x42, 0x61, 0x51, 0x49, 0x46, // 2 18
  0x00, 0x21, 0x41, 0x45, 0x4B, 0x31, // 3 19
  0x00, 0x18, 0x14, 0x12, 0x7F, 0x10, // 4 20
  0x00, 0x27, 0x45, 0x45, 0x45, 0x39, // 5 21
  0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30, // 6 22
  0x00, 0x01, 0x71, 0x09, 0x05, 0x03, // 7 23
  0x00, 0x36, 0x49, 0x49, 0x49, 0x36, // 8 24
  0x00, 0x06, 0x49, 0x49, 0x29, 0x1E, // 9 25
  0x00, 0x00, 0x36, 0x36, 0x00, 0x00, // : 26
  0x00, 0x00, 0x56, 0x36, 0x00, 0x00, // ; 27
  0x00, 0x08, 0x14, 0x22, 0x41, 0x00, // < 28
  0x00, 0x14, 0x14, 0x14, 0x14, 0x14, // = 29
  0x00, 0x00, 0x41, 0x22, 0x14, 0x08, // > 30
  0x00, 0x02, 0x01, 0x51, 0x09, 0x06, // ? 31
  0x00, 0x32, 0x49, 0x59, 0x51, 0x3E, // @ 32
  0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C, // A 33
  0x00, 0x7F, 0x49, 0x49, 0x49, 0x36, // B 34
  0x00, 0x3E, 0x41, 0x41, 0x41, 0x22, // C 35
  0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C, // D 36
  0x00, 0x7F, 0x49, 0x49, 0x49, 0x41, // E 37
  0x00, 0x7F, 0x09, 0x09, 0x09, 0x01, // F 38
  0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A, // G 39
  0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F, // H 40
  0x00, 0x00, 0x41, 0x7F, 0x41, 0x00, // I 41
  0x00, 0x20, 0x40, 0x41, 0x3F, 0x01, // J 42
  0x00, 0x7F, 0x08, 0x14, 0x22, 0x41, // K 43
  0x00, 0x7F, 0x40, 0x40, 0x40, 0x40, // L 44
  0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F, // M 45
  0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F, // N 46
  0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E, // O 47
  0x00, 0x7F, 0x09, 0x09, 0x09, 0x06, // P 48
  0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E, // Q 49
  0x00, 0x7F, 0x09, 0x19, 0x29, 0x46, // R 50
  0x00, 0x46, 0x49, 0x49, 0x49, 0x31, // S 51
  0x00, 0x01, 0x01, 0x7F, 0x01, 0x01, // T 52
  0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F, // U 53
  0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F, // V 54
  0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F, // W 55
  0x00, 0x63, 0x14, 0x08, 0x14, 0x63, // X 56
  0x00, 0x07, 0x08, 0x70, 0x08, 0x07, // Y 57
  0x00, 0x61, 0x51, 0x49, 0x45, 0x43, // Z 58
  0x00, 0x00, 0x7F, 0x41, 0x41, 0x00, // [ 59
  0x00, 0x02, 0x04, 0x08, 0x10, 0x20, // \ 60
  0x00, 0x00, 0x41, 0x41, 0x7F, 0x00, // ] 61
  0x00, 0x04, 0x02, 0x01, 0x02, 0x04, // ^ 62
  0x00, 0x40, 0x40, 0x40, 0x40, 0x40, // _ 63
  0x00, 0x00, 0x01, 0x02, 0x04, 0x00, // ' 64
  0x00, 0x20, 0x54, 0x54, 0x54, 0x78, // a 65
  0x00, 0x7F, 0x48, 0x44, 0x44, 0x38, // b 66
  0x00, 0x38, 0x44, 0x44, 0x44, 0x20, // c 67
  0x00, 0x38, 0x44, 0x44, 0x48, 0x7F, // d 68
  0x00, 0x38, 0x54, 0x54, 0x54, 0x18, // e 69
  0x00, 0x08, 0x7E, 0x09, 0x01, 0x02, // f 70
  0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C, // g 71
  0x00, 0x7F, 0x08, 0x04, 0x04, 0x78, // h 72
  0x00, 0x00, 0x44, 0x7D, 0x40, 0x00, // i 73
  0x00, 0x40, 0x80, 0x84, 0x7D, 0x00, // j 74
  0x00, 0x7F, 0x10, 0x28, 0x44, 0x00, // k 75
  0x00, 0x00, 0x41, 0x7F, 0x40, 0x00, // l 76
  0x00, 0x7C, 0x04, 0x18, 0x04, 0x78, // m 77
  0x00, 0x7C, 0x08, 0x04, 0x04, 0x78, // n 78
  0x00, 0x38, 0x44, 0x44, 0x44, 0x38, // o 79
  0x00, 0xFC, 0x24, 0x24, 0x24, 0x18, // p 80
  0x00, 0x18, 0x24, 0x24, 0x18, 0xFC, // q 81
  0x00, 0x7C, 0x08, 0x04, 0x04, 0x08, // r 82
  0x00, 0x48, 0x54, 0x54, 0x54, 0x20, // s 83
  0x00, 0x04, 0x3F, 0x44, 0x40, 0x20, // t 84
  0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C, // u 85
  0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C, // v 86
  0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C, // w 87
  0x00, 0x44, 0x28, 0x10, 0x28, 0x44, // x 88
  0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C, // y 89
  0x00, 0x44, 0x64, 0x54, 0x4C, 0x44, // z 90
  0x00, 0x08, 0x36, 0x41, 0x41, 0x00, // { 91
  0x00, 0x00, 0x00, 0x7F, 0x00, 0x00, // | 92
  0x00, 0x00, 0x41, 0x41, 0x36, 0x08, // } 93
  0x00, 0x08, 0x04, 0x08, 0x10, 0x08, // ~ 94
};
h1aji commented 4 years ago

I am not sure how to fix screen rotation

charlesglorioso commented 4 years ago

I just converted a previous Internet radio build to this very impressive code set. Very complete and well documented. My hardware is using SSD1306, so thanks for the improved font set. I too am having the issue with the display being upside down. Since it is a previous hardware build, I cannot easily flip the hardware upside down. Finally, since the OLED has burn in issues. is there a timeout to blank the display that can be enabled? Thanks again for this amazing implementtion.

charlesglorioso commented 4 years ago

I have implemented a quick and dirty timeout to blank the display using the backlight timeout. around line 1850:

time_req = true ;                             // Yes, show current time request
if ( ++bltimer == BL_TIME )                   // Time to blank the TFT screen?
{
  bltimer = 0 ;                               // Yes, reset counter
  blset ( false ) ;                           // Disable TFT (backlight)
 }

change to:

// time_req = true ; // Yes, show current time request if ( ++bltimer == BL_TIME ) // Time to blank the TFT screen? { bltimer = 0 ; // Yes, reset counter blset ( false ) ; // Disable TFT (backlight) dsp_erase(); }

The time display line needs to be commented out to prevent it from undoing the blanking.

On rotating the display 180 degrees, the SSD1306 documentation says that changing:

define OLED_CMD_SET_COM_SCAN_MODE 0xC0 // 0xC0 for norml scan direction

to

define OLED_CMD_SET_COM_SCAN_MODE 0xC8

will flip the display. It does flip the vertical, but then the display reads mirror image. (Even though the documentation appears to show full 180 rotation as a result.) The Adafruit library achieves 180 degree rotation in software, so that will likely have to be the solution here.