Improve DASH connectivity to network

[arnoldvillasanta]

I experienced DASH not consistently connecting to network, or sometimes the connection drops unexpectedly.
What I did to make the connection more stable is to plug a rechargeable battery. This makes 100% network connectivity on startup (via USB or via pins).

But a plugged rechargeable battery will always make the board powered up even there’s no power on the USB/pins (makes this solution not workable for my end-product).

My solution is to add a capacitor (1000mf/10 volts) instead of a rechargeable battery so the charge will easily deplete when board is powered-down, but can hold-on enough for the network connection to be more stable on startup.

To test my setup, I’m using the following sketch:

boolean isRegistered;

void setup() {
  Serial.begin(115200);
}

void loop() {
  Serial.print("Signal Strength:  ");
  Serial.println(HologramCloud.getSignalStrength());
  Serial.print("Connection Status:  ");
  if (HologramCloud.getConnectionStatus() == 1) {
    HologramCloud.setRGB("GREEN");
    delay(500);
    HologramCloud.offRGB();
  } else {
    HologramCloud.setRGB("RED");
    delay(500);
    HologramCloud.offRGB();    
  }
  Serial.println(HologramCloud.getConnectionStatus());
  Serial.print("Registered to Network:  ");
  isRegistered = HologramCloud.isRegistered();
  Serial.println(isRegistered);
  if (isRegistered) {
    Serial.print("Sent Message to Cloud:  ");
    Serial.println(HologramCloud.sendMessage("Message from xxx", "test_message"));
  }
  delay(10000);
}

Just sharing this solution and hope it is a good one.