This is the description of the JavaScript API bindings for the Outdoor Weather Bricklet. General information and technical specifications for the Outdoor Weather Bricklet are summarized in its hardware description.
An installation guide for the JavaScript API bindings is part of their general description.
The example code below is Public Domain (CC0 1.0).
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | var Tinkerforge = require('tinkerforge');
var HOST = 'localhost';
var PORT = 4223;
var UID = 'XYZ'; // Change XYZ to the UID of your Outdoor Weather Bricklet
var ipcon = new Tinkerforge.IPConnection(); // Create IP connection
var ow = new Tinkerforge.BrickletOutdoorWeather(UID, ipcon); // Create device object
ipcon.connect(HOST, PORT,
function (error) {
console.log('Error: ' + error);
}
); // Connect to brickd
// Don't use device before ipcon is connected
ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
function (connectReason) {
// Enable station data callbacks
ow.setStationCallbackConfiguration(true);
// Enable sensor data callbacks
ow.setSensorCallbackConfiguration(true);
}
);
// Register station data callback
ow.on(Tinkerforge.BrickletOutdoorWeather.CALLBACK_STATION_DATA,
// Callback function for station data callback
function (identifier, temperature, humidity, windSpeed, gustSpeed, rain,
windDirection, batteryLow) {
console.log('Identifier (Station): ' + identifier);
console.log('Temperature (Station): ' + temperature/10.0 + ' °C');
console.log('Humidity (Station): ' + humidity + ' %RH');
console.log('Wind Speed (Station): ' + windSpeed/10.0 + ' m/s');
console.log('Gust Speed (Station): ' + gustSpeed/10.0 + ' m/s');
console.log('Rain (Station): ' + rain/10.0 + ' mm');
if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_N) {
console.log('Wind Direction (Station): N');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NNE) {
console.log('Wind Direction (Station): NNE');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NE) {
console.log('Wind Direction (Station): NE');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_ENE) {
console.log('Wind Direction (Station): ENE');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_E) {
console.log('Wind Direction (Station): E');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_ESE) {
console.log('Wind Direction (Station): ESE');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SE) {
console.log('Wind Direction (Station): SE');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SSE) {
console.log('Wind Direction (Station): SSE');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_S) {
console.log('Wind Direction (Station): S');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SSW) {
console.log('Wind Direction (Station): SSW');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SW) {
console.log('Wind Direction (Station): SW');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_WSW) {
console.log('Wind Direction (Station): WSW');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_W) {
console.log('Wind Direction (Station): W');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_WNW) {
console.log('Wind Direction (Station): WNW');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NW) {
console.log('Wind Direction (Station): NW');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NNW) {
console.log('Wind Direction (Station): NNW');
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_ERROR) {
console.log('Wind Direction (Station): Error');
}
console.log('Battery Low (Station): ' + batteryLow);
console.log();
}
);
// Register sensor data callback
ow.on(Tinkerforge.BrickletOutdoorWeather.CALLBACK_SENSOR_DATA,
// Callback function for sensor data callback
function (identifier, temperature, humidity) {
console.log('Identifier (Sensor): ' + identifier);
console.log('Temperature (Sensor): ' + temperature/10.0 + ' °C');
console.log('Humidity (Sensor): ' + humidity + ' %RH');
console.log();
}
);
console.log('Press key to exit');
process.stdin.on('data',
function (data) {
ipcon.disconnect();
process.exit(0);
}
);
|
Download (ExampleCallback.html), Test (ExampleCallback.html)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | <!DOCTYPE html>
<html>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<head>
<title>Tinkerforge | JavaScript Example</title>
</head>
<body>
<div style="text-align:center;">
<h1>Outdoor Weather Bricklet Callback Example</h1>
<p>
<input value="localhost" id="host" type="text" size="20">:
<input value="4280" id="port" type="text" size="5">,
<input value="uid" id="uid" type="text" size="5">
<input value="Start Example" id="start" type="button" onclick="startExample();">
</p>
<p>
<textarea readonly id="text" cols="80" rows="24" style="resize:none;"
>Press "Start Example" to begin ...</textarea>
</p>
</div>
<script src="./Tinkerforge.js" type='text/javascript'></script>
<script type='text/javascript'>
var ipcon;
var textArea = document.getElementById("text");
function startExample() {
textArea.value = "";
var HOST = document.getElementById("host").value;
var PORT = parseInt(document.getElementById("port").value);
var UID = document.getElementById("uid").value;
if(ipcon !== undefined) {
ipcon.disconnect();
}
ipcon = new Tinkerforge.IPConnection(); // Create IP connection
var ow = new Tinkerforge.BrickletOutdoorWeather(UID, ipcon); // Create device object
ipcon.connect(HOST, PORT,
function(error) {
textArea.value += 'Error: ' + error + '\n';
}
); // Connect to brickd
// Don't use device before ipcon is connected
ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
function (connectReason) {
// Enable station data callbacks
ow.setStationCallbackConfiguration(true);
// Enable sensor data callbacks
ow.setSensorCallbackConfiguration(true);
}
);
// Register station data callback
ow.on(Tinkerforge.BrickletOutdoorWeather.CALLBACK_STATION_DATA,
// Callback function for station data callback
function (identifier, temperature, humidity, windSpeed, gustSpeed, rain,
windDirection, batteryLow) {
textArea.value += 'Identifier (Station): ' + identifier + '\n';
textArea.value += 'Temperature (Station): ' + temperature/10.0 + ' °C\n';
textArea.value += 'Humidity (Station): ' + humidity + ' %RH\n';
textArea.value += 'Wind Speed (Station): ' + windSpeed/10.0 + ' m/s\n';
textArea.value += 'Gust Speed (Station): ' + gustSpeed/10.0 + ' m/s\n';
textArea.value += 'Rain (Station): ' + rain/10.0 + ' mm\n';
if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_N) {
textArea.value += 'Wind Direction (Station): N\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NNE) {
textArea.value += 'Wind Direction (Station): NNE\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NE) {
textArea.value += 'Wind Direction (Station): NE\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_ENE) {
textArea.value += 'Wind Direction (Station): ENE\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_E) {
textArea.value += 'Wind Direction (Station): E\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_ESE) {
textArea.value += 'Wind Direction (Station): ESE\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SE) {
textArea.value += 'Wind Direction (Station): SE\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SSE) {
textArea.value += 'Wind Direction (Station): SSE\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_S) {
textArea.value += 'Wind Direction (Station): S\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SSW) {
textArea.value += 'Wind Direction (Station): SSW\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_SW) {
textArea.value += 'Wind Direction (Station): SW\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_WSW) {
textArea.value += 'Wind Direction (Station): WSW\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_W) {
textArea.value += 'Wind Direction (Station): W\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_WNW) {
textArea.value += 'Wind Direction (Station): WNW\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NW) {
textArea.value += 'Wind Direction (Station): NW\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_NNW) {
textArea.value += 'Wind Direction (Station): NNW\n';
}
else if(windDirection === Tinkerforge.BrickletOutdoorWeather.WIND_DIRECTION_ERROR) {
textArea.value += 'Wind Direction (Station): Error\n';
}
textArea.value += 'Battery Low (Station): ' + batteryLow + '\n';
textArea.value += '\n';
textArea.scrollTop = textArea.scrollHeight;
}
);
// Register sensor data callback
ow.on(Tinkerforge.BrickletOutdoorWeather.CALLBACK_SENSOR_DATA,
// Callback function for sensor data callback
function (identifier, temperature, humidity) {
textArea.value += 'Identifier (Sensor): ' + identifier + '\n';
textArea.value += 'Temperature (Sensor): ' + temperature/10.0 + ' °C\n';
textArea.value += 'Humidity (Sensor): ' + humidity + ' %RH\n';
textArea.value += '\n';
textArea.scrollTop = textArea.scrollHeight;
}
);
}
</script>
</body>
</html>
|
Generally, every function of the JavaScript bindings can take two optional
parameters, returnCallback
and errorCallback
. These are two user
defined callback functions. The returnCallback
function is called with the
results as arguments, if the function returns its results asynchronously. The
errorCallback
is called with an error code in case of an error. The error
code can be one of the following values:
The namespace for the JavaScript bindings is Tinkerforge.*
.
BrickletOutdoorWeather
(uid, ipcon)¶Parameters: |
|
---|---|
Returns: |
|
Creates an object with the unique device ID uid
:
var outdoorWeather = new BrickletOutdoorWeather("YOUR_DEVICE_UID", ipcon);
This object can then be used after the IP Connection is connected.
BrickletOutdoorWeather.
getStationIdentifiers
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the identifiers (number between 0 and 255) of all stations that have been seen since the startup of the Bricklet.
Each station gives itself a random identifier on first startup.
Since firmware version 2.0.2 a station is removed from the list if no data was received for 12 hours.
BrickletOutdoorWeather.
getSensorIdentifiers
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the identifiers (number between 0 and 255) of all sensors that have been seen since the startup of the Bricklet.
Each sensor gives itself a random identifier on first startup.
Since firmware version 2.0.2 a sensor is removed from the list if no data was received for 12 hours.
BrickletOutdoorWeather.
getStationData
(identifier[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Returns the last received data for a station with the given identifier.
Call getStationIdentifiers()
for a list of all available identifiers.
The return values are:
The following constants are available for this function:
For wind_direction:
BrickletOutdoorWeather.
getSensorData
(identifier[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Returns the last measured data for a sensor with the given identifier.
Call getSensorIdentifiers()
for a list of all available identifiers.
The return values are:
BrickletOutdoorWeather.
getSPITFPErrorCount
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the error count for the communication between Brick and Bricklet.
The errors are divided into
The errors counts are for errors that occur on the Bricklet side. All Bricks have a similar function that returns the errors on the Brick side.
BrickletOutdoorWeather.
setStatusLEDConfig
(config[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Sets the status LED configuration. By default the LED shows communication traffic between Brick and Bricklet, it flickers once for every 10 received data packets.
You can also turn the LED permanently on/off or show a heartbeat.
If the Bricklet is in bootloader mode, the LED is will show heartbeat by default.
The following constants are available for this function:
For config:
BrickletOutdoorWeather.
getStatusLEDConfig
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the configuration as set by setStatusLEDConfig()
The following constants are available for this function:
For config:
BrickletOutdoorWeather.
getChipTemperature
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the temperature as measured inside the microcontroller. The value returned is not the ambient temperature!
The temperature is only proportional to the real temperature and it has bad accuracy. Practically it is only useful as an indicator for temperature changes.
BrickletOutdoorWeather.
reset
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Calling this function will reset the Bricklet. All configurations will be lost.
After a reset you have to create new device objects, calling functions on the existing ones will result in undefined behavior!
BrickletOutdoorWeather.
getIdentity
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the UID, the UID where the Bricklet is connected to, the position, the hardware and firmware version as well as the device identifier.
The position can be 'a', 'b', 'c', 'd', 'e', 'f', 'g' or 'h' (Bricklet Port). A Bricklet connected to an Isolator Bricklet is always at position 'z'.
The device identifier numbers can be found here. There is also a constant for the device identifier of this Bricklet.
BrickletOutdoorWeather.
on
(callback_id, function[, errorCallback])¶Parameters: |
|
---|---|
Returns: |
|
Registers the given function
with the given callback_id
.
The available callback IDs with corresponding function signatures are listed below.
BrickletOutdoorWeather.
setStationCallbackConfiguration
(enableCallback[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Turns callback for station data on or off.
BrickletOutdoorWeather.
getStationCallbackConfiguration
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the configuration as set by setStationCallbackConfiguration()
.
BrickletOutdoorWeather.
setSensorCallbackConfiguration
(enableCallback[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Turns callback for sensor data on or off.
BrickletOutdoorWeather.
getSensorCallbackConfiguration
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the configuration as set by setSensorCallbackConfiguration()
.
Callbacks can be registered to receive
time critical or recurring data from the device. The registration is done
with the on()
function of
the device object. The first parameter is the callback ID and the second
parameter the callback function:
outdoorWeather.on(BrickletOutdoorWeather.CALLBACK_EXAMPLE,
function (param) {
console.log(param);
}
);
The available constants with inherent number and type of parameters are described below.
Note
Using callbacks for recurring events is always preferred compared to using getters. It will use less USB bandwidth and the latency will be a lot better, since there is no round trip time.
BrickletOutdoorWeather.
CALLBACK_STATION_DATA
¶Callback Parameters: |
|
---|
Reports the station data every time a new data packet is received.
See getStationData()
for information about the data.
For each station the callback will be triggered about every 45 seconds.
Turn the callback on/off with setStationCallbackConfiguration()
(by default it is turned off).
The following constants are available for this function:
For wind_direction:
BrickletOutdoorWeather.
CALLBACK_SENSOR_DATA
¶Callback Parameters: |
|
---|
Reports the sensor data every time a new data packet is received.
See getSensorData()
for information about the data.
For each sensor the callback will be called about every 45 seconds.
Turn the callback on/off with setSensorCallbackConfiguration()
(by default it is turned off).
Virtual functions don't communicate with the device itself, but operate only on the API bindings device object. They can be called without the corresponding IP Connection object being connected.
BrickletOutdoorWeather.
getAPIVersion
()¶Returns: |
|
---|
Returns the version of the API definition implemented by this API bindings. This is neither the release version of this API bindings nor does it tell you anything about the represented Brick or Bricklet.
BrickletOutdoorWeather.
getResponseExpected
(functionId[, errorCallback])¶Parameters: |
|
---|---|
Returns: |
|
Returns the response expected flag for the function specified by the function ID parameter. It is true if the function is expected to send a response, false otherwise.
For getter functions this is enabled by default and cannot be disabled,
because those functions will always send a response. For callback configuration
functions it is enabled by default too, but can be disabled by
setResponseExpected()
. For setter functions it is disabled by default
and can be enabled.
Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is sent and errors are silently ignored, because they cannot be detected.
The following constants are available for this function:
For function_id:
BrickletOutdoorWeather.
setResponseExpected
(functionId, responseExpected[, errorCallback])¶Parameters: |
|
---|---|
Returns: |
|
Changes the response expected flag of the function specified by the function ID parameter. This flag can only be changed for setter (default value: false) and callback configuration functions (default value: true). For getter functions it is always enabled.
Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is sent and errors are silently ignored, because they cannot be detected.
The following constants are available for this function:
For function_id:
BrickletOutdoorWeather.
setResponseExpectedAll
(responseExpected)¶Parameters: |
|
---|---|
Returns: |
|
Changes the response expected flag for all setter and callback configuration functions of this device at once.
Internal functions are used for maintenance tasks such as flashing a new firmware of changing the UID of a Bricklet. These task should be performed using Brick Viewer instead of using the internal functions directly.
BrickletOutdoorWeather.
setBootloaderMode
(mode[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Sets the bootloader mode and returns the status after the requested mode change was instigated.
You can change from bootloader mode to firmware mode and vice versa. A change from bootloader mode to firmware mode will only take place if the entry function, device identifier and CRC are present and correct.
This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.
The following constants are available for this function:
For mode:
For status:
BrickletOutdoorWeather.
getBootloaderMode
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the current bootloader mode, see setBootloaderMode()
.
The following constants are available for this function:
For mode:
BrickletOutdoorWeather.
setWriteFirmwarePointer
(pointer[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Sets the firmware pointer for writeFirmware()
. The pointer has
to be increased by chunks of size 64. The data is written to flash
every 4 chunks (which equals to one page of size 256).
This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.
BrickletOutdoorWeather.
writeFirmware
(data[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Writes 64 Bytes of firmware at the position as written by
setWriteFirmwarePointer()
before. The firmware is written
to flash every 4 chunks.
You can only write firmware in bootloader mode.
This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.
BrickletOutdoorWeather.
writeUID
(uid[, returnCallback][, errorCallback])¶Parameters: |
|
---|---|
Callback Parameters: |
|
Returns: |
|
Writes a new UID into flash. If you want to set a new UID you have to decode the Base58 encoded UID string into an integer first.
We recommend that you use Brick Viewer to change the UID.
BrickletOutdoorWeather.
readUID
([returnCallback][, errorCallback])¶Callback Parameters: |
|
---|---|
Returns: |
|
Returns the current UID as an integer. Encode as Base58 to get the usual string version.
BrickletOutdoorWeather.
DEVICE_IDENTIFIER
¶This constant is used to identify a Outdoor Weather Bricklet.
The getIdentity()
function and the
IPConnection.CALLBACK_ENUMERATE
callback of the IP Connection have a device_identifier
parameter to specify
the Brick's or Bricklet's type.
BrickletOutdoorWeather.
DEVICE_DISPLAY_NAME
¶This constant represents the human readable name of a Outdoor Weather Bricklet.