Sense.Connect.Deploy.
An IoT device is a sensor with a radio and a purpose — measuring the world, pushing data over the network, and acting on commands from anywhere. Connectivity is what turns a gadget into a fleet.
/ what is iot
A sensor, a radio, and the whole internet on the other side.
Add Wi-Fi or BLE to a microcontroller and it stops being a standalone gadget — it becomes a node you can read, command, and update from across the room or across the planet. A temperature reading published over MQTT is where it starts.
/ the data path
Measure → Transmit → Act.
Measure
Read the sensor on the edge, timestamp it, and buffer it for the next uplink.
Transmit
Publish over Wi-Fi, BLE, or LoRa — through MQTT, HTTP, or a gateway to the cloud.
Act
React to commands and thresholds: toggle a relay, raise an alert, or push a firmware update back down.
/ the building blocks
The anatomy of a connected device.
Edge Node
The microcontroller and sensors that live where the data is born, sipping power to last for months.
Radio
Wi-Fi, BLE, LoRa, or Zigbee — the link that carries readings out and commands back in.
Gateway
The bridge that aggregates nodes and speaks to the wider network, often over MQTT or HTTP.
Cloud
Where data lands, dashboards live, and rules decide when a device needs to act.
/ get hands-on
Ready to put your device online?
Start with the IoT & Connectivity track — Wi-Fi, BLE, MQTT, and LoRa for devices you can deploy.