DinMeter Wi‑Fi Information Retrieval

#include <M5Unified.h>
#include <WiFi.h>
 
void setup() {
  // Initialize M5Unified
  auto cfg = M5.config();
  M5.begin(cfg);
 
  M5.Display.fillScreen(TFT_BLACK);
 
  // Set text properties
  M5.Display.setTextSize(1);
  M5.Display.setTextColor(TFT_WHITE, TFT_BLACK);
 
  // Scan Wi‑Fi
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(100);
  int n = WiFi.scanNetworks();
 
  // Print results on the DinMeter screen
  M5.Display.setCursor(0, 0);
  M5.Display.printf("Found %d networks\n\n", n);
  for (int i = 0; i < n; i++) {
    M5.Display.printf("%2d: %s\n    (%d dBm)\n\n",
                      i + 1,
                      WiFi.SSID(i).c_str(),
                      WiFi.RSSI(i));
    delay(50);
  }
}
 
void loop() {
  M5.update();
  // Place periodic refresh here if needed
}