Your first device online today, for free

An ESP32 sketch using the Thinger.io client library.

#include <ThingerESP32.h>
#include <DHT.h>

ThingerESP32 thing(USERNAME, DEVICE_ID, DEVICE_CREDENTIAL);
DHT dht(4, DHT22);

void setup() {
  thing.add_wifi(SSID, SSID_PASSWORD);
  dht.begin();
  pinMode(LED_BUILTIN, OUTPUT);
  thing["led"] << digitalPin(LED_BUILTIN);
  thing["environment"] >> [](pson& out) {
    out["temperature"] = dht.readTemperature();
    out["humidity"] = dht.readHumidity();
  };
}

void loop() {
  thing.handle();
}

greenhouse connected ESP32

The device view in the console: online, a temperature reading and an LED switched on.

A data bucket charting a day of temperature, with its latest rows and an export button.

A dashboard with a temperature gauge, a humidity value, an LED button and a line chart.

A curl request with a bearer token reading the bucket, and its JSON reply.

$ curl -H "Authorization: Bearer $TOKEN" \
https://backend.thinger.io/v2/users/maker/buckets/greenhouse/data?items=1&sort=desc
200 OK
[
  {
    "humidity": 58,
    "temperature": 24.9,
    "ts": 1759327200000
  }
]

Access token · read greenhouse