For use with Johnny-Five.
-
SparkFun Weather Shield
DEV-13956,13956(Current)- Humidity/Temperature Sensor - Si7021
- Barometric Pressure - MPL3115A2
- Light Sensor - ALS-PT19
-
SparkFun Weather Shield
DEV-12081,12081(Retired)- Humidity/Temperature Sensor - HTU21D
- Barometric Pressure - MPL3115A2
- Light Sensor - ALS-PT19
-
SparkFun Photon Weather Shield
DEV-13674,13674(Current)- Humidity/Temperature Sensor - Si7021
- Barometric Pressure - MPL3115A2
-
SparkFun Photon Weather Shield
DEV-13630,13630(Retired)- Humidity/Temperature Sensor - HTU21D
- Barometric Pressure - MPL3115A2
For use with Particle Photon:
npm install johnny-five particle-io j5-sparkfun-weather-shield
For use with Arduino:
npm install johnny-five j5-sparkfun-weather-shield
The Weather class constructs objects that represent the built-in components of the shield.
-
Explicit Initialization, defaults "data" to 25ms intervals
const weather = new Weather({ variant: "DEV-13956", }); ...or... const weather = new Weather({ variant: "DEV-13674", });
-
Explicit Initialization, specify "data" to 200ms intervals
const weather = new Weather({ variant: "DEV-13956", period: 200 }); ...or... const weather = new Weather({ variant: "DEV-13674", period: 200 });
| Property | Type | Value(s)/Description | Default | Required | Version |
|---|---|---|---|---|---|
variant |
string | "ARDUINO", "PHOTON" |
no | yes | v0.1.0-v1.0.0 |
variant |
string or number | See Variants | no | yes | v2.0.0+ |
elevation |
number | Base elevation in meters (You can use whatismyelevation.com to find out the base elevation for your location) | yes * | yes | |
freq |
number | Use period |
25 (ms) |
no | v0.1.0-v1.0.0 |
period |
number | Milliseconds. The rate in milliseconds to emit the data event | 25 (ms) |
no | v2.0.0+ |
* If elevation is omitted, the value of the feet and meters properties will be null. When elevation is included, there is a 3 second calibration window before all values are reported.
| Shield | Product Name | Variant Values | Retired ? |
|---|---|---|---|
 |
SparkFun Weather Shield | "DEV-13956", "DEV13956", 13956 |
No |
 |
SparkFun Weather Shield | "DEV-12081", "DEV12081", 12081 |
Yes |
 |
SparkFun Photon Weather Shield | "DEV-13674", "DEV13674", 13674 |
No |
 |
SparkFun Photon Weather Shield | "DEV-13630", "DEV13630", 13630 |
Yes |
(Without a specified elevation)
const five = require("johnny-five");
const Weather = require("j5-sparkfun-weather-shield")(five);
const board = new five.Board();
board.on("ready", () => {
const weather = new Weather({
variant: "DEV-13956",
period: 200
});
weather.on("data", () => {
const {
celsius,
fahrenheit,
kelvin,
pressure,
relativeHumidity,
lightLevel
} = weather;
console.log("celsius: %d°C", celsius);
console.log("fahrenheit: %d°F", fahrenheit);
console.log("kelvin: %d°K", kelvin);
console.log("pressure: %d kPa", pressure);
console.log("relativeHumidity: %d RH", relativeHumidity);
console.log("lightLevel: %d%", lightLevel);
console.log("----------------------------------------");
});
});(With a specified elevation)
const five = require("johnny-five");
const Weather = require("j5-sparkfun-weather-shield")(five);
const board = new five.Board();
board.on("ready", () => {
const weather = new Weather({
variant: "DEV-13956",
period: 200,
// Set your base elevation with a value in meters,
// as reported by http://www.whatismyelevation.com/.
// `5` is the elevation (meters) of the
// Bocoup office in downtown Boston
elevation: 5,
});
// Including elevation for altitude readings will
// incure an additional 3 second calibration time.
weather.on("data", () => {
const {
celsius,
fahrenheit,
kelvin,
pressure,
feet,
meters,
relativeHumidity,
lightLevel
} = weather;
console.log("celsius: %d°C", celsius);
console.log("fahrenheit: %d°F", fahrenheit);
console.log("kelvin: %d°K", kelvin);
console.log("pressure: %d kPa", pressure);
console.log("feet: %d'", feet);
console.log("meters: %d", meters);
console.log("relativeHumidity: %d RH", relativeHumidity);
console.log("lightLevel: %d%", lightLevel);
console.log("----------------------------------------");
});
});(Without a specified elevation)
const Particle = require("particle-io");
const five = require("johnny-five");
const Weather = require("j5-sparkfun-weather-shield")(five);
const board = new five.Board({
io: new Particle({
token: process.env.PARTICLE_TOKEN,
deviceId: process.env.PARTICLE_PHOTON_DEVICE_ID
})
});
board.on("ready", function() {
var weather = new Weather({
variant: "DEV-13674",
period: 200
});
weather.on("data", () => {
const {
celsius,
fahrenheit,
kelvin,
pressure,
relativeHumidity,
lightLevel
} = weather;
console.log("celsius: %d°C", celsius);
console.log("fahrenheit: %d°F", fahrenheit);
console.log("kelvin: %d°K", kelvin);
console.log("pressure: %d kPa", pressure);
console.log("relativeHumidity: %d RH", relativeHumidity);
console.log("lightLevel: %d%", lightLevel);
console.log("----------------------------------------");
});
});(With a specified elevation)
const Particle = require("particle-io");
const five = require("johnny-five");
const Weather = require("j5-sparkfun-weather-shield")(five);
const board = new five.Board({
io: new Particle({
token: process.env.PARTICLE_TOKEN,
deviceId: process.env.PARTICLE_PHOTON_DEVICE_ID
})
});
board.on("ready", () => {
const weather = new Weather({
variant: "DEV-13674",
period: 200,
// Set your base elevation with a value in meters,
// as reported by http://www.whatismyelevation.com/.
// `5` is the elevation (meters) of the
// Bocoup office in downtown Boston
elevation: 5,
});
// Including elevation for altitude readings will
// incure an additional 3 second calibration time.
weather.on("data", () => {
const {
celsius,
fahrenheit,
kelvin,
pressure,
feet,
meters,
relativeHumidity,
lightLevel
} = weather;
console.log("celsius: %d°C", celsius);
console.log("fahrenheit: %d°F", fahrenheit);
console.log("kelvin: %d°K", kelvin);
console.log("pressure: %d kPa", pressure);
console.log("feet: %d'", feet);
console.log("meters: %d", meters);
console.log("relativeHumidity: %d RH", relativeHumidity);
console.log("lightLevel: %d%", lightLevel);
console.log("----------------------------------------");
});
});const weather = new Weather({
variant: ...
});
weather.on("data", () => {
console.log(JSON.stringify(weather, null, 2));
});Produces:
{
"celsius": 24,
"fahrenheit": 75.2,
"kelvin": 297.15,
"pressure": 125.5,
"feet": 3.28,
"meters": 1,
"relativeHumidity": 48,
"lightLevel": 50
}
Since the Photon shield does not include the
ALS-PT19light sensor, thelightLevelproperty will always benullfor that variant.
The examples shown here are provided for illustration and do no specifically indicate variant support. This component class is expected to work with any variant that has I2C support.
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