Tue, 03 Oct 2023 17:24:06 +0200
Version 0.3.0. Backported network code from experimental roaming project. Will now connect after reset to the strongest AP. Id the signal level drops below -67, extra scans are done to see for a better AP. Nothing is done yet. Removed config.conf file, all info is taken from the project menu and live tests. Better log the board type and send it via json mqtt. Send bssid and current channel too.
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1 | |
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2 | U8glib V2: Name and project goals |
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3 | |
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4 | https://github.com/olikraus/u8g2 |
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5 | |
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6 | U8g2 = Universal 8bit Graphics |
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7 | |
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8 | [U]niversal: Support for many displays ans development platforms |
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9 | [8]bit: Initial focus had been 8 bit microcontroller systems |
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10 | [g]raphics": U8g2 is a graphics library with focus on monochrome graphics displays |
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11 | [2]: Second generation and successor of u8glib |
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12 | |
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13 | |
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14 | U8glib V2 Goals |
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15 | |
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16 | - Support for monochrome LCDs and OLEDs |
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17 | - Focus on "monochrome" |
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18 | - Low memory footprint |
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19 | |
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20 | |
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21 | U8glib V2: Features and Limitations |
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22 | |
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23 | - Full Memory Buffer |
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24 | - 3-wire-SPI |
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25 | - Support for Arduino Libraries SPI and TWI |
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26 | |
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27 | - Unicode Support |
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28 | Unicode plane 0 (Basic Multilingual Plane, BMP, glyphs with 0x0000-0xffff) |
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29 | is fully supported. |
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30 | Limitation: Unicode planes > 0 are not supported |
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31 | - UTF-8 Support |
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32 | 2 and 3 byte sequences are detected and handled. |
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33 | Limitation: |
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34 | Behavior for sequences with more than 3 bytes is unknown. |
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35 | |
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36 | - Large number of fonts |
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37 | |
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38 | - Compilation speed improved (font data) |
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39 | |
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40 | - "Text only" sub library: U8x8 |
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41 | |
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42 | - Hardware supported display flip |
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43 | |
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44 | - Better hardware support: Tested with avr, esp8266 and sam architectures. |
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45 | |
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46 | |
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47 | u8g vs. u8g2 |
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48 | |
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49 | Major Changes (Code rework required) |
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50 | |
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51 | - The name of the include file has changed: Use |
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52 | #include "U8g2lib.h" |
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53 | - The native type for pixel coordinates has changed to u8g2_uint_t |
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54 | Use the following line to redefine this at the beginning of your code |
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55 | typedef u8g2_uint_t u8g_uint_t; |
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56 | |
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57 | - Old Arduino IDE 00xx (before 1.00) is not supported any more. |
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58 | ARDUINO macro must be >= 100 |
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59 | - begin() must be called (this was optional in U8glib) |
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60 | - constructor contains name of communicaton interface and |
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61 | also contains the display orientation as first argument |
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62 | - u8g2.drawStr90 does not exist any more, use |
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63 | void u8g2_SetFontDirection(u8g2_t *u8g2, uint8_t dir); |
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64 | - "P" versions of the string functions are not yet implemented. |
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65 | This includes drawStrP(), getStrWidthP(), etc |
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66 | Use the print function with the F() macro instead. |
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67 | - In U8glib font transparency was defined in the .begin() statement. This is now |
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68 | handled by setFontMode(). |
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69 | - Screen rotation is handled by the constructor in u8g2 |
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70 | The functions undoRotation, setRot90, setRot180 and setRot270 are |
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71 | replaced by the first argument of the constructor |
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72 | - Screen scaling is not there in u8g2 |
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73 | It is completly removed, there are no corresponding function in u8g2 |
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74 | for undoScale() and setScale2x2(). |
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75 | - setColorEntry(), setHiColor(), setHiColorByRGB(), setRGB: Not supported any more |
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76 | (u8g2 focus are monochrome displays, use Ucglib instead) |
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77 | - getMode(): Is not available any more because there is only one monochrome mode. |
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78 | - setDefaultForegroundColor(), setDefaultBackgroundColor() and |
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79 | setDefaultMidColor() are not required any more. These functions do not |
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80 | exist in U8g2. Use setDrawColor() instead. |
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81 | - getFontLineSpacing() and setFontLineSpacingFactor() are not supported any more. |
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82 | - getStrPixelWidth() is replaced by getStrWidth() |
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83 | - setHardwareBackup() not supported any more. Might be implemented later |
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84 | - Cursor functions are not available. This includes: |
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85 | setCursorFont(), setCursorStyle(), setCursorPos(), setCursorColor(), |
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86 | enableCursor(), disableCursor(), drawCursor() |
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87 | - Virtual screen handling is not supported: |
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88 | setVirtualScreenDimension(), addToVirtualScreen() |
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89 | |
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90 | Minor Changes (Code update might be required) |
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91 | |
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92 | - U8g2 drawTriangle() expects signed arguments (u8glib expects unsigned arguments) |
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93 | - U8g2 has different font names. Some of the old font names are known to u8g2 and are |
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94 | mapped automatically. If the font name is unknown, please choose a different font from the font list. |
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95 | |
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96 | Change Notes (No code change required) |
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97 | |
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98 | - sleepOn(), sleepOff(): supported, but better user setPowerSave() |
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99 | - setColorIndex() and getColorIndex() are renamed to setDrawColor() and |
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100 | getDrawColor(). The old names are still supported. |
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101 | - getFontAscent() and getFontDescent() are renamed to getAscent() and getDescent() |
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102 | The old names are still supported. |
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103 | - Signal names are renamed in the constructor calls: |
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104 | U8glib sck == U8g2 clock |
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105 | U8glib mosi == U8g2 data |
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106 | U8glib a0 == U8g2 dc |
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107 | - getHeight() renamed to getDisplayHeight(), old name still exists |
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108 | - getWidth() renamed to getDisplayWidth(), old name still exists |
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109 | |
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110 |