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@LordOfDav11 LordOfDav11/main.ico Secret

Created Apr 15, 2020
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// mapping suggestion from Waveshare SPI e-Paper to generic ESP8266
// BUSY -> GPIO4, RST -> GPIO2, DC -> GPIO0, CS -> GPIO15, CLK -> GPIO14, DIN -> GPIO13, GND -> GND, 3.3V -> 3.3V
// NOTE: connect 4.7k pull-down from GPIO15 to GND if your board or shield has level converters
// NOTE for ESP8266: using SS (GPIO15) for CS may cause boot mode problems, use different pin in case, or 4k7 pull-down
// mapping of Waveshare e-Paper ESP8266 Driver Board
// BUSY -> GPIO16, RST -> GPIO5, DC -> GPIO4, CS -> GPIO15, CLK -> GPIO14, DIN -> GPIO13, GND -> GND, 3.3V -> 3.3V
// NOTE for ESP8266: using SS (GPIO15) for CS may cause boot mode problems, use different pin in case
// mapping suggestion for ESP32, e.g. LOLIN32, see .../variants/.../pins_arduino.h for your board
// NOTE: there are variants with different pins for SPI ! CHECK SPI PINS OF YOUR BOARD
// BUSY -> 4, RST -> 16, DC -> 17, CS -> SS(5), CLK -> SCK(18), DIN -> MOSI(23), GND -> GND, 3.3V -> 3.3V
// mapping of Waveshare ESP32 Driver Board
// BUSY -> 25, RST -> 26, DC -> 27, CS-> 15, CLK -> 13, DIN -> 14
// NOTE: this board uses "unusual" SPI pins and requires re-mapping of HW SPI to these pins in SPIClass
// see example GxEPD2_WS_ESP32_Driver.ino, it shows how this can be done easily
#define ENABLE_GxEPD2_GFX 0
#include <GxEPD2_BW.h>
#include <GxEPD2_3C.h>
#include <Fonts/FreeMonoBold9pt7b.h>
GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z08 800x480
void setup()
{
Serial.begin(115200);
Serial.println();
Serial.println("setup");
delay(100);
display.init(115200);
helloWorld();
delay(1000);
display.powerOff();
deepSleepTest();
Serial.println("setup done");
}
void loop()
{
}
const char HelloWorld[] = "Hello World!";
void helloWorld()
{
Serial.println("helloWorld");
display.setRotation(1);
display.setFont(&FreeMonoBold9pt7b);
display.setTextColor(GxEPD_BLACK);
int16_t tbx, tby; uint16_t tbw, tbh;
display.getTextBounds(HelloWorld, 0, 0, &tbx, &tby, &tbw, &tbh);
// center bounding box by transposition of origin:
uint16_t x = ((display.width() - tbw) / 2) - tbx;
uint16_t y = ((display.height() - tbh) / 2) - tby;
display.setFullWindow();
display.firstPage();
do
{
display.fillScreen(GxEPD_WHITE);
display.setCursor(x, y);
display.print(HelloWorld);
}
while (display.nextPage());
Serial.println("helloWorld done");
}
void deepSleepTest()
{
Serial.println("deepSleepTest");
const char hibernating[] = "hibernating ...";
const char wokeup[] = "woke up";
const char from[] = "from deep sleep";
const char again[] = "again";
display.setRotation(1);
display.setFont(&FreeMonoBold9pt7b);
display.setTextColor(GxEPD_BLACK);
int16_t tbx, tby; uint16_t tbw, tbh;
// center text
display.getTextBounds(hibernating, 0, 0, &tbx, &tby, &tbw, &tbh);
uint16_t x = ((display.width() - tbw) / 2) - tbx;
uint16_t y = ((display.height() - tbh) / 2) - tby;
display.setFullWindow();
display.firstPage();
do
{
display.fillScreen(GxEPD_WHITE);
display.setCursor(x, y);
display.print(hibernating);
}
while (display.nextPage());
display.hibernate();
delay(5000);
display.getTextBounds(wokeup, 0, 0, &tbx, &tby, &tbw, &tbh);
uint16_t wx = (display.width() - tbw) / 2;
uint16_t wy = (display.height() / 3) + tbh / 2; // y is base line!
display.getTextBounds(from, 0, 0, &tbx, &tby, &tbw, &tbh);
uint16_t fx = (display.width() - tbw) / 2;
uint16_t fy = (display.height() * 2 / 3) + tbh / 2; // y is base line!
display.firstPage();
do
{
display.fillScreen(GxEPD_WHITE);
display.setCursor(wx, wy);
display.print(wokeup);
display.setCursor(fx, fy);
display.print(from);
}
while (display.nextPage());
delay(5000);
display.getTextBounds(hibernating, 0, 0, &tbx, &tby, &tbw, &tbh);
uint16_t hx = (display.width() - tbw) / 2;
uint16_t hy = (display.height() / 3) + tbh / 2; // y is base line!
display.getTextBounds(again, 0, 0, &tbx, &tby, &tbw, &tbh);
uint16_t ax = (display.width() - tbw) / 2;
uint16_t ay = (display.height() * 2 / 3) + tbh / 2; // y is base line!
display.firstPage();
do
{
display.fillScreen(GxEPD_WHITE);
display.setCursor(hx, hy);
display.print(hibernating);
display.setCursor(ax, ay);
display.print(again);
}
while (display.nextPage());
display.hibernate();
Serial.println("deepSleepTest done");
}
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