ESP32 Forum

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#define USER_SETUP_INFO "User_Setup"
#define ST7789_DRIVER
#define TFT_RGB_ORDER TFT_BGR
#define TFT_WIDTH  240 // ST7789 240 x 240 and 240 x 320
#define TFT_HEIGHT 240 // ST7789 240 x 240
#define LOAD_GLCD   // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
#define LOAD_FONT2  // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
#define LOAD_FONT4  // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
#define LOAD_FONT6  // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
#define LOAD_FONT7  // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:-.
#define LOAD_FONT8  // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
#define LOAD_GFXFF  // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
#define SPI_FREQUENCY  27000000

Code: Select all

#include <TFT_eSPI.h>
#include <WiFi.h>

// ESP32C3 super mini setup
#define TFT_MISO 5
#define TFT_MOSI 8
#define TFT_SCLK 9
#define TFT_CS    -1 // Not connected
#define TFT_DC    2
#define TFT_RST   4  // Connect reset to ensure display initialises
#define TFT_BL   10            // LED back-light control pi
#define TFT_BACKLIGHT_ON HIGH  // Level to turn ON back-light (HIGH or LOW)

TFT_eSPI tft = TFT_eSPI();

void toggleBacklight() {
  digitalWrite(TFT_BL, !digitalRead(TFT_BL));
}

void setup(void) {
  pinMode(TFT_BL, OUTPUT);
  Serial.begin(9600);
  Serial.println("ST7789 TFT WiFi Scan Test");

  tft.begin();                                 // initialize a ST7789 chip
  tft.setSwapBytes(true);                      // swap the byte order for pushImage() - corrects endianness
  tft.setRotation(3);
  tft.fillScreen(TFT_BLACK);

  toggleBacklight();  // Schakel backlight in
}

void displayWiFiScanResults() {
  int n = WiFi.scanNetworks();

  tft.fillScreen(TFT_BLACK);
  tft.setTextSize(1);
  tft.setTextColor(TFT_WHITE);
  
  if (n == 0) {
    tft.setCursor(10, 10);
    tft.println("No networks found");
  } else {
    tft.setCursor(10, 10);
    tft.print(n);
    tft.println(" networks found");

    for (int i = 0; i < n; ++i) {
      tft.print(i + 1);
      tft.print(": ");
      tft.print(WiFi.SSID(i));
      tft.print(" (");
      tft.print(WiFi.RSSI(i));
      tft.print(")");
      tft.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN) ? " " : "*");
    }
  }
}

void loop() {
//  delay(1000);
//  toggleBacklight();  // Schakel backlight in
//  delay(1000);
//  toggleBacklight();  // Schakel backlight uit

  displayWiFiScanResults();  // Toon WiFi-scanresultaten op het LCD-scherm

  // Wacht een tijdje voordat je opnieuw scant
  delay(5000);
}