105 lines
3.7 KiB
C
105 lines
3.7 KiB
C
/* Support definitions and functions for ePaper examples
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* These tailor the library and screen settings
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* Must be a header file to ensure #defines are established first
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*
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* Created by Bodmer 30/3/18 for TFT_eSPI library:
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* https://github.com/Bodmer/TFT_eSPI
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*/
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/*
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EPD_WIDTH and EPD_HEIGHT are automatically defined here based on the library selected
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For 2 colour ePaper displays create one frame pointer in sketch:
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uint8_t* framePtr;
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For 3 colour ePaper displays create two frame pointers in sketch:
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uint8_t* blackFramePtr;
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uint8_t* redFramePtr;
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Call this function to update whole display:
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updateDisplay();
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*/
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// Install the ePaper library for your own display size and type
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// from here:
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// https://github.com/Bodmer/EPD_Libraries
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//------------------------------------------------------------------------------------
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// Define which colour values are paper and ink
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//------------------------------------------------------------------------------------
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#if defined (EPD2IN7B_H)
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#define COLORED 1 // EPD2IN7B is opposite to all others!
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#define UNCOLORED 0
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#else
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#define COLORED 0
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#define UNCOLORED 1
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#endif
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//------------------------------------------------------------------------------------
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// Define the width and height of the different displays
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//------------------------------------------------------------------------------------
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#if defined (EPD1IN54_H) || defined (EPD1IN54B_H)
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#define EPD_WIDTH 200 // Frame buffer is 5000 bytes
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#define EPD_HEIGHT 200
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#elif defined (EPD1IN54C_H)
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#define EPD_WIDTH 152 // 2 frame buffers of 2888 bytes each
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#define EPD_HEIGHT 152
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#elif defined (EPD2IN7_H) || defined (EPD2IN7B_H)
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#define EPD_WIDTH 176 // Frame buffer is 5808 bytes
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#define EPD_HEIGHT 264
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#elif defined (EPD2IN9_H) || defined (EPD2IN9B_H)
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#define EPD_WIDTH 128 // Frame buffer is 4736 bytes
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#define EPD_HEIGHT 296
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#elif defined (EPD2IN13_H)
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#define EPD_WIDTH 122 // Frame buffer is 4000 bytes
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#define EPD_HEIGHT 250
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#elif defined (EPD2IN13B_H)
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#define EPD_WIDTH 104 // 2 frame buffers of 2756 bytes each
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#define EPD_HEIGHT 212
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#elif defined (EPD4IN2_H)
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#define EPD_WIDTH 400 // Frame buffer is 15000 bytes
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#define EPD_HEIGHT 300
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// ESP8266 has just enough RAM for a 2 color 7.5" display full screen buffer
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// ESP32 has just enough RAM for 2 or 3 color 7.5" display
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// (Without using partial screen updates)
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#elif defined (EPD7IN5_H) || defined (EPD7IN5B_H)
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#define EPD_WIDTH 640 // 2 colour frame buffer is 30720 bytes
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#define EPD_HEIGHT 384 // 2 colour frame buffer is 61440 bytes
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#else
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# error "Selected ePaper library is not supported"
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#endif
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//------------------------------------------------------------------------------------
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// Update display - different displays have different function names in the default
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// Waveshare libraries :-(
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//------------------------------------------------------------------------------------
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#if defined (EPD1IN54B_H) || defined(EPD1IN54C_H) || defined(EPD2IN13B_H) || defined(EPD2IN7B_H) || defined(EPD2IN9B_H) || defined(EPD4IN2_H)
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void updateDisplay(uint8_t* blackFrame = blackFramePtr, uint8_t* redFrame = redFramePtr)
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{
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ePaper.DisplayFrame(blackFrame, redFrame); // Update 3 colour display
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#else
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void updateDisplay(uint8_t* blackFrame = framePtr)
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{
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#if defined (EPD2IN7_H) || defined(EPD4IN2_H)
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ePaper.DisplayFrame(blackFrame); // Update 2 color display
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#elif defined (EPD1IN54_H) || defined(EPD2IN13_H) || defined(EPD2IN9_H)
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ePaper.SetFrameMemory(blackFrame);
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#else
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# error "Selected ePaper library is not supported"
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#endif
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#endif
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}
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