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#include <Arduino.h>
#define GxEPD2_DISPLAY_CLASS GxEPD2_BW
#include <GxEPD2_BW.h>
#include <GxEPD2_3C.h>
#include <Fonts/FreeMonoBold9pt7b.h>
#include <Fonts/FreeMonoBold24pt7b.h>
#include <NimBLEDevice.h>
NimBLEServer *server;
// HINT: Update the library code, set budy timeout to 30 or 60 seconds!
// Small color
// GxEPD2_3C<GxEPD2_213_Z19c, GxEPD2_213_Z19c::HEIGHT> display(GxEPD2_213_Z19c(22, 21, 17, 16));
// latger b/w
GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(22, 21, 17, 16));
unsigned long pressedTime = 0;
unsigned long releasedTime = 0;
#define BUTTON_PIN 0
#define LONG_PRESS_TIME 3000
#define SLEEP_TIME 10000
NimBLEAdvertising *pAdvertising;
void display_helloWorld();
void setup()
{
Serial.begin(115200);
Serial.println("Yes, it works!");
NimBLEDevice::init("Espadge");
server = NimBLEDevice::createServer();
NimBLEService *service = new NimBLEService("ca260000-b4bb-46b2-bd06-b7b7a61ea990");
auto c = service->createCharacteristic("ca260001-b4bb-46b2-bd06-b7b7a61ea990");
service->start();
c->setValue("1");
server->addService(service);
pAdvertising = NimBLEDevice::getAdvertising();
pAdvertising->setName("NimBLE");
Serial.println("Init display...");
display.init(115200, true, 2, false); // USE THIS for Waveshare boards with "clever" reset circuit, 2ms reset pulse
display_helloWorld();
display.hibernate();
Serial.println("Display done.");
// doesn't work as expected?
// gpio_wakeup_enable(GPIO_NUM_0, GPIO_INTR_LOW_LEVEL);
// esp_sleep_enable_gpio_wakeup();
// esp_light_sleep_start();
}
void loop()
{
static int lastState = HIGH;
int buttonState = digitalRead(BUTTON_PIN);
if (lastState == HIGH && buttonState == LOW)
{
Serial.println("``\\__");
pressedTime = millis();
lastState = LOW;
}
else if (lastState == LOW && buttonState == HIGH)
{
lastState = HIGH;
Serial.println("__/``");
releasedTime = millis();
long pressDuration = releasedTime - pressedTime;
if (pressDuration > LONG_PRESS_TIME && !pAdvertising->isAdvertising())
{
Serial.println("Long press detected. Starting advertising...");
pAdvertising->start(10000);
}
// if (millis() - releasedTime > SLEEP_TIME && !pAdvertising->isAdvertising())
// {
// Serial.println("Go to sleep...");
// esp_light_sleep_start();
// }
};
}
void display_helloWorld()
{
// display.clearScreen();
static const char HelloWorld[] = "Hello World!";
display.setRotation(1);
display.setFont(&FreeMonoBold24pt7b);
display.setTextColor(GxEPD_BLACK);
int16_t tbx, tby;
uint16_t tbw, tbh;
display.getTextBounds(HelloWorld, 0, 0, &tbx, &tby, &tbw, &tbh);
// center the bounding box by transposition of the 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_YELLOW);
display.setCursor(x, y);
display.print(HelloWorld);
} while (display.nextPage());
}
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