Quick start

Get your first device online and control it from a dashboard in about ten minutes. You create the device in SME AIoT, paste two lines into a sketch, flash your board and add two widgets.

What you need

Try the whole flow

Walk through the four steps here first. Each one looks like the real screen, so you will recognise it when you do it for real.

Step by step

1. Turn on Developer ModeSign in to SME AIoT. Open your account menu (top right) and switch Developer Mode on. This is where you create devices and build their dashboards.
2. Create the deviceIn the left panel, click New device. Enter a Project name you will recognise, such as Boiler-1, then pick a Device category, Connection type and Hardware. Click Get credentials & continue. The device is created and its dashboard opens.
3. Copy the credentialsOn the dashboard, open Device Info. Under Connection credentials, click Copy code. This copies the two lines with your DASHBOARD_ID and DEVICE_TOKEN.
4. Set up the board and the libraryIf the Arduino IDE isn't set up for your board yet, follow Connect NuttyFi. It covers the board package, the SMEIoT library and its two helper libraries.
5. Paste the sketchCopy the sketch below into a new sketch. Replace the two #define lines at the top with the ones you copied, and fill in your Wi-Fi name and password.
6. Upload and watch it connectClick Upload, then open Tools → Serial Monitor at 115200 baud. When you see [SME] MQTT Connected, the device shows Online on its dashboard.
7. Add two widgetsTurn on editing on the dashboard. Add a Switch linked to TP0 and a Value linked to TP1. Tap the Switch: the LED on the board turns on.

The first sketch

This sketch turns the on-board LED on and off from a Switch on TP0, and sends the analog reading on A0 to TP1 every 2 seconds.

#define DASHBOARD_ID     "PROJ-••••••••"       // from Device Info
#define DEVICE_TOKEN     "SME-••••-••••-••••"  // from Device Info
#define FIRMWARE_VERSION "1.0.0"

#define WIFI_SSID "your_wifi"
#define WIFI_PASS "your_password"

#include <SMEIoT.h>

SME_LISTEN(TP0)                      // a Switch on TP0 writes here
{
  digitalWrite(2, data.toInt());   // on-board LED
}

unsigned long lastSend = 0;

void setup()
{
  Serial.begin(115200);
  pinMode(2, OUTPUT);
  SME.begin(DASHBOARD_ID, DEVICE_TOKEN, FIRMWARE_VERSION, WIFI_SSID, WIFI_PASS);
}

void loop()
{
  SME.run();                         // keep this at the top of loop()

  if (millis() - lastSend >= 2000) {   // every 2 seconds
    lastSend = millis();
    SME.publish(TP1, analogRead(A0));    // a Value on TP1 shows it
  }
}

Next steps