Examples - Firmngin AIoT Platform

The Firmngin Arduino repository includes example sketches for common device patterns. Start with the smallest example that matches your device, then add features only when needed. [image:Arduino examples folder with basic, MQTT, OTA, GPS, camera, and monetization examples]

Setup pattern

Most examples follow this setup:

Include firmngin.h from the installed library.
Put keys.h next to the sketch.
Configure Wi-Fi or another supported network client.
Upload the sketch with Arduino IDE or PlatformIO.
Watch Serial output during first connection.

Example list

Example	Use it for
`BasicExample`	First Firmngin connection and basic device state handling.
`PushStateExample`	Sending entity values from firmware.
`ReceiveStateExample`	Receiving entity commands from Firmngin.
`BatchStateExample`	Sending multiple entity values in one update.
`SensorExample`	Sensor-style telemetry.
`BasicMonetizeExample`	Basic paid device flow.
`VendingMachineExample`	Serial-debug vending flow: detect business mode and dispense SKUs. No entities.
`DisplayPINExample`	Showing a verification PIN on device display or Serial.
`ActiveSessionEndExample`	Ending an active paid session from firmware logic.
`OTAUpdateExample`	Firmware update checks and OTA install flow.
`GPSTrackerExample`	GPS tracking with location updates.
`CameraUploadExample`	Uploading camera images to Firmngin.
`GenericCameraExample`	Generic camera integration pattern.
`MqttOnlyExample`	Using bundled PubSubClient without Firmngin device credentials.
`MqttClientExample`	Firmngin platform MQTT plus a second broker client.
`EthernetExample`	Using an external network client instead of Wi-Fi.
`PersistentQueueExample`	Queueing state when the device cannot send immediately.

MQTT-only mode

Use MqttOnlyExample only when the firmware needs MQTT to another broker without Firmngin device credentials, entities, payments, or Firmngin.begin().

For Firmngin-connected devices, use the Firmngin client lifecycle with begin() and loop().

Repository

Open the source examples in firmngin/Firmngin-Arduino.