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8130b1cf43
E-ink panel is DEPG0213BNS800. Otherwise, identical to v1.1 (?) Partial refresh supported, but not implemented in this commit. Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
#pragma once
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#include <OLEDDisplay.h>
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#if defined(HELTEC_WIRELESS_PAPER_V1_0)
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// Re-enable SPI after deep sleep: rtc_gpio_hold_dis()
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#include "driver/rtc_io.h"
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#endif
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/**
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* An adapter class that allows using the GxEPD2 library as if it was an OLEDDisplay implementation.
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*
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* Remaining TODO:
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* optimize display() to only draw changed pixels (see other OLED subclasses for examples)
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* implement displayOn/displayOff to turn off the TFT device (and backlight)
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* Use the fast NRF52 SPI API rather than the slow standard arduino version
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*
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* turn radio back on - currently with both on spi bus is fucked? or are we leaving chip select asserted?
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*/
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class EInkDisplay : public OLEDDisplay
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{
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/// How often should we update the display
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/// thereafter we do once per 5 minutes
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uint32_t slowUpdateMsec = 5 * 60 * 1000;
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public:
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/* constructor
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FIXME - the parameters are not used, just a temporary hack to keep working like the old displays
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*/
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EInkDisplay(uint8_t, int, int, OLEDDISPLAY_GEOMETRY, HW_I2C);
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// Write the buffer to the display memory (for eink we only do this occasionally)
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virtual void display(void) override;
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/**
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* Force a display update if we haven't drawn within the specified msecLimit
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*
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* @return true if we did draw the screen
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*/
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bool forceDisplay(uint32_t msecLimit = 1000);
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/**
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* shim to make the abstraction happy
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*
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*/
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void setDetected(uint8_t detected);
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protected:
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// the header size of the buffer used, e.g. for the SPI command header
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virtual int getBufferOffset(void) override { return 0; }
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// Send a command to the display (low level function)
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virtual void sendCommand(uint8_t com) override;
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// Connect to the display
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virtual bool connect() override;
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};
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