DEVELOPERS

Production‑ready IoT in six lines.

The KME Smart Arduino + ESP‑IDF SDKs handle reconnection, batching, OTA, and security out of the box. Speak raw MQTT, the REST API, or WebSocket — your call.

Read the docs →View on GitHub

esp32 / src / main.cpp

1// Publish a temperature reading every 2s

2#include <KMESmart.h>

4KMESmart kme("YOUR_DEVICE_TOKEN");

6void setup() {

7 kme.begin("wifi-ssid", "pass");

10void loop() {

11 float t = readDHT22();

12 kme.publish("living/temp", t);

13 delay(2000);

14}

FIRMWARE SDK

One library. Any ESP board.

The KME Smart SDK handles MQTT reconnection, batching, OTA, and security so your loop stays focused on the device. Or drop down to raw MQTT — whichever you prefer.

⚡ Quick start

Any ESP‑based board — ESP32, ESP32‑C6, ESP8266, C3, S3 — plus a USB cable and a 2.4 GHz Wi‑Fi network. No toolchain or SDK install required.

SDKs

Arduino · ESP‑IDF · Python · JS

Auth

Device tokens · x.509 · JWT

OTA

Signed updates · staged rollouts

API

REST · MQTT · WebSocket

API REFERENCE

17 first‑class resources. One REST surface.

Every dashboard widget, every automation, every device action — all reachable from one HTTPS endpoint. SDKs and Postman collections in the docs.

Devices & fleets

GET /api/v1/devices

GET /api/v1/devices/:id

POST /api/v1/devices/:id/command

GET /api/v1/registered-devices

GET /api/v1/groups

POST /api/v1/groups/:id/ota

Telemetry & events

GET /api/v1/events

GET /api/v1/events/stream SSE

GET /api/v1/alerts

POST /api/v1/alerts/rules

GET /api/v1/notifications

GET /api/v1/health

Firmware & OTA

GET /api/v1/firmware/:board/latest

POST /api/v1/firmware

GET /api/v1/static-firmware/:slug

Projects & orgs

GET /api/v1/projects

POST /api/v1/projects

GET /api/v1/license

GET /api/v1/factory

Specials

GET /api/v1/gps-devices

GET /api/v1/low-power

GET /api/v1/simulators

GET /api/v1/reports/:kind

Auth

POST /api/v1/auth/login

POST /api/v1/auth/refresh

GET /api/v1/auth/me

MQTT

Topic conventions that scale to thousands.

Predictable topics make the rest easy: wildcards work, automations key off them, dashboards subscribe to whole sites in one line.

TopicPurpose

{project}/{room}/{device}/stateRetained device state — read on connect

{project}/{room}/{device}/telemetryLive readings (temp, W, position, etc.)

{project}/{room}/{device}/commandInbound commands — set state, fire action

{project}/{room}/{device}/eventDiscrete events — button press, alert, fault

{project}/{room}/{device}/healthRSSI · free heap · uptime · crash counter

{project}/+/+/stateSubscribe — every device in a project