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build/fs/api_dht.js

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+// Mongoose OS DHT library API. Source C API is defined at:
+// [mgos_dht.h](https://github.com/mongoose-os-libs/dht/tree/master/src/mgos_dht.h)
+
+let DHT = {
+  _crt: ffi('void *mgos_dht_create(int, int)'),
+  _cls: ffi('void mgos_dht_close(void *)'),
+  _gt: ffi('float mgos_dht_get_temp(void *)'),
+  _gh: ffi('float mgos_dht_get_humidity(void *)'),
+
+  // Define type of sensors.
+  DHT11: 11,
+  DHT21: 21,
+  AM2301: 21,
+  DHT22: 22,
+  AM2302: 22,
+
+  // **`DHT.create(pin, type)`**
+  // Create a DHT object. `type` could be `DHT.DHT11`, `DHT.DHT21`,
+  // `DHT.DHT22`. Return value: an object with the methods described below, or
+  // 'null' in case of a failure.
+  // Example:
+  // ```javascript
+  // let mydht = DHT.create(5, DHT.DHT11);
+  // print('Temperature:', mydht.getTemp());
+  // ```
+  create: function(pin, type) {
+    let obj = Object.create(DHT._proto);
+    obj.dht = DHT._crt(pin, type);
+    return obj;
+  },
+
+  _proto: {
+    // **`mydht.close()`**
+    // Close DHT handle. Return value: none.
+    close: function() {
+      return DHT._cls(this.dht);
+    },
+
+    // **`mydht.getTemp()`**
+    // Return temperature in degrees C or 'NaN' in case of a failure.
+    getTemp: function() {
+      return DHT._gt(this.dht);
+    },
+
+    // **`mydht.getHumidity()`**
+    // Return humidity in RH% or 'NaN' in case of a failure.
+    getHumidity: function() {
+      return DHT._gh(this.dht);
+    },
+  },
+};