launchpad-super-trigger

Trigger application for the Novation "Launchpad S" and "Launchpad MK2"

Get the Binary

Before you can build the binary, you have to install the rtmidi library on your machine:

apt-get install librtmidi-dev

Now you can build it on your own (you will need golang installed):

go build -a -installsuffix cgo ./cmd/lst/

Then start the application:

./launchpad-super-trigger -config config.yaml

ConfigFile

connections:
 mqtt:
  test-broker:
   broker: tcp://broker-host:1883
   clientId: launchpad
actors:
 rest:
  rest-test:
   url: "http://localhost:1312"
 mqtt:
  mqtt-test:
   connection: test-broker
   topic: my/topic
   body: Hello!
layout:
 pages:
  0:
   trigger:
    0,1:
     actor: rest-test
     color:
      ready: 0,0
      progress: 1,1
      success: 2,2
      failed: 3,3
    1,0:
     actor: mqtt-test

Config documentation

config key	default	mandatory	description
general	-	false	Contains all general settings.
general.startPage	0	false	The page which should active when the application starts.
general.startBrightness	100	false	The brightness which should be used at start the application. It is only effective when the Launchpad MK2 with RGB-Colors is used.
general.navigationMode	0	false	The page navigation mode: 0 => binary mode; 1 => toggle mode
general.sensorStore	-	false	If the sensor data should be persisted, here you can set the file path to the bolt-db. Otherwise the sensor date will only keep in memory.
general.compressSensorData	false	false	Should the received sensor data be (gzip) compressed? This will work with all store types (memory or bolt).
actors	-	false	Contains all available actors.
actors.command	-	false	Contains all available command actors. A command actor will runs a command on the local machine.
actors.command[name].name	-	true	The name/path of the command to execute.
actors.command[name].args	-	false	A list of arguments which will be send to the command.
actors.command[name].appendContext	false	false	Should the trigger context append in the command args?
actors.rest	-	false	Contains all available rest actors. An rest actor will call an rest service.
actors.rest[name].method	GET	false	The http method which should be used.
actors.rest[name].url	-	true	The target url.
actors.rest[name].header[name][]value	-	false	The http headers which should be used.
actors.rest[name].body	-	false	The body content for the http request.
actors.rest[name].bodyBase64	-	false	The body content for the http request encoded in base64.
actors.rest[name].bodyPath	-	false	The body file for the http request.
actors.rest[name].bodyTemplate	-	false	The body template for the http request.
actors.mqtt	-	false	Contains all available mqtt actors. An mqtt actor will send a message to a given topic.
actors.mqtt[name].connection	-	false	The name of to mqtt connection which should be used for this mqtt actor.
actors.mqtt[name].topic	-	true	The topic name.
actors.mqtt[name].qos	0	false	The QualityOfService for the published message.
actors.mqtt[name].retained	false	false	Should the message be retained?
actors.mqtt[name].body	-	false	The body content for the mqtt message.
actors.mqtt[name].bodyBase64	-	false	The body content for the mqtt message encoded in base64.
actors.mqtt[name].bodyPath	-	false	The body file for the mqtt message.
actors.mqtt[name].bodyTemplate	-	false	The body template for the mqtt message.
actors.combined	-	false	Contains all available combined actors. An combined actor will call other actors (sequential or in parallel).
actors.combined[name].actors	-	true	The list of underlying actor names. Must be greater or equal than 2!
actors.combined[name].parallel	false	false	How should the underlying actors be called. If true they will be called parallel. Otherwise the will be called sequential.
actors.conditional	-	false	Contains all available conditional actors. An conditional actor will call other actors depends on the given conditions.
actors.conditional[name].conditions	-	true	Contains the conditions.
actors.conditional[name].conditions[].actor	-	true	The actor which should be called if the condition is met.
actors.conditional[name].conditions[].datapoint	-	true	The reference for the underlying data point.
actors.conditional[name].conditions[].expression	-	true	The reference for the underlying data point.
actors.conditional[name].conditions[].expression.eq	-	false	This expression matches if the data point is equal than the given value.
actors.conditional[name].conditions[].expression.ne	-	false	This expression matches if the data point is not equal than the given value.
actors.conditional[name].conditions[].expression.lt	-	false	This expression matches if the data point is less than the given value.
actors.conditional[name].conditions[].expression.lte	-	false	This expression matches if the data point is less or equal than the given value.
actors.conditional[name].conditions[].expression.gt	-	false	This expression matches if the data point is greater than the given value.
actors.conditional[name].conditions[].expression.gte	-	false	This expression matches if the data point is greater or equal than the given value.
actors.conditional[name].conditions[].expression.match	-	false	This expression matches if the data point matches the given regular expression the given value.
actors.conditional[name].conditions[].expression.nmatch	-	false	This expression matches if the data point not matches the given regular expression the given value.
actors.conditional[name].conditions[].expression.contains	-	false	This expression matches if the data point contains the given value.
actors.conditional[name].conditions[].expression.ncontains	-	false	This expression matches if the data point contains not the given value.
actors.gfxBlink	-	false	Contains all available gfx blink actors. A blink actor will draw blinking pads.
actors.gfxBlink[name].on	-	true	The on color.
actors.gfxBlink[name].off	0,0	false	The off color.
actors.gfxBlink[name].interval	1s	false	The interval of blink animation.
actors.gfxBlink[name].duration	until page leave	false	The duration of the blink interval.
actors.gfxWave	-	false	Contains all available gfx wave actors. A wave actor will draw waves on the pads.
actors.gfxWave[name].square	false	false	Should the waveform be square?
actors.gfxWave[name].color	0,3	false	The color of the wave.
actors.gfxWave[name].delay	500ms	false	The delay between wave steps.
actors.metaSwitchPage	-	false	Contains all available page switch actors. A page switch actor can switch to a given page.
actors.metaSwitchPage[name].target	-	true	The page you want to switch to.
actors.metaSwitchNavigationMode	-	false	Contains all available navigation mode switch actors. A navigation mode switch actor can switch to a given navigation mode.
actors.metaSwitchNavigationMode[name].mode	-	true	The page navigation mode: 0 => binary mode; 1 => toggle mode
actors.metaSwitchLock	-	false	Contains all available lock switch actors. A lock switch actor can switch to a given lock state (arm and unarmed).
actors.metaSwitchLock[name].lock	-	true	Should the launchpad be armed (true) or unarmed (false)?
connections	-	false	Contains all available connections, which can be used by different actors.
connections.mqtt	-	false	Contains all available MQTT connections.
connections.mqtt[name].broker	-	true	The url of the MQTT-Broker.
connections.mqtt[name].clientId	-	false	The client id which is send to the mqtt broker.
connections.mqtt[name].username	-	false	The username.
connections.mqtt[name].password	-	false	The password.
sensors	-	false	Contains all available sensors. A sensor will listen for (incoming) data.
sensors.command	-	false	Contains all available command actors. A command actor will runs a command on the local machine.
sensors.command[name].name	-	true	The name/path of the command to execute.
sensors.command[name].args	-	false	A list of arguments which will be send to the command.
sensors.command[name].interval	-	true	The interval.
sensors.command[name].data	-	false	Contains all data points. A data point is a part of the received message.
sensors.command[name].data.complete	-	false	The name of the data point for the complete message.
sensors.command[name].data.gjson	-	false	Contains all gjson data points.
sensors.command[name].data.gjson[name]	-	false	The gjson path to use to extract data point.
sensors.command[name].data.split	-	false	Contains all split data points.
sensors.command[name].data.split[name].separator	-	true	The separator which should be used to split the whole data.
sensors.command[name].data.split[name].index	-	true	The index of the split element which should be used as data point. Must be greater or equal 0!
sensors.command[name].data.gojq	-	false	Contains all gojq data points.
sensors.command[name].data.gojq[name]	-	true	The gojq query which should be used to extract the data point.
sensors.mqtt	-	false	Contains all available mqtt sensors. A mqtt sensor will listen for mqtt topics.
sensors.mqtt[name].connection	-	true	The name of to mqtt connection which should be used for this mqtt sensor.
sensors.mqtt[name].topic	-	true	The topic name.
sensors.mqtt[name].qos	0	false	The QualityOfService for the subscription message.
sensors.mqtt[name].data	-	false	Contains all data points. A data point is a part of the received message.
sensors.mqtt[name].data.complete	-	false	The name of the data point for the complete message.
sensors.mqtt[name].data.gjson	-	false	Contains all gjson data points.
sensors.mqtt[name].data.gjson[name]	-	false	The gjson path to use to extract data point.
sensors.mqtt[name].data.split	-	false	Contains all split data points.
sensors.mqtt[name].data.split[name].separator	-	true	The separator which should be used to split the whole data.
sensors.mqtt[name].data.split[name].index	-	true	The index of the split element which should be used as data point. Must be greater or equal 0!
sensors.mqtt[name].data.gojq	-	false	Contains all gojq data points.
sensors.mqtt[name].data.gojq[name]	-	true	The gojq query which should be used to extract the data point.
sensors.rest	-	false	Contains all available rest sensors. An rest sensor will call an rest service in an given interval.
sensors.rest[name].method	GET	false	The http method which should be used.
sensors.rest[name].url	-	true	The target url.
sensors.rest[name].header[name][]value	-	false	The http headers which should be used.
sensors.rest[name].body	-	false	The body content for the http request.
sensors.rest[name].bodyBase64	-	false	The body content for the http request encoded in base64.
sensors.rest[name].bodyPath	-	false	The body file for the http request.
sensors.rest[name].interval	-	true	The interval.
sensors.rest[name].data	-	false	Contains all data points. A data point is a part of the received message.
sensors.rest[name].data.complete	-	false	The name of the data point for the complete message.
sensors.rest[name].data.gjson	-	false	Contains all gjson data points.
sensors.rest[name].data.gjson[name]	-	false	The gjson path to use to extract data point.
sensors.rest[name].data.split	-	false	Contains all split data points.
sensors.rest[name].data.split[name].separator	-	true	The separator which should be used to split the whole data.
sensors.rest[name].data.split[name].index	-	true	The index of the split element which should be used as data point. Must be greater or equal 0!
sensors.rest[name].data.gojq	-	false	Contains all gojq data points.
sensors.rest[name].data.gojq[name]	-	true	The gojq query which should be used to extract the data point.
layout	-	false	Contains all layout settings.
layout.pages	-	false	Contains all page settings.
layout.pages[pageNumber]	-	false	Contains a page setting.
layout.pages[pageNumber].trigger	-	false	Contains settings about the trigger on this page.
layout.pages[pageNumber].trigger[coordinates]	-	false	Contains settings about the trigger which should be called if the given button at coordinate is hit.
layout.pages[pageNumber].trigger[coordinates].actor	-	true	The name of the actor (see actor config) which should be called if the trigger is hit.
layout.pages[pageNumber].trigger[coordinates].color	-	false	Contains the color settings about the trigger.
layout.pages[pageNumber].trigger[coordinates].color.disabled	false	false	Should color be used?
layout.pages[pageNumber].trigger[coordinates].color.ready	-	false	The color which should be used if the trigger is ready.
layout.pages[pageNumber].trigger[coordinates].color.progress	-	false	The color which should be used as long as the actor is in progress.
layout.pages[pageNumber].trigger[coordinates].color.success	-	false	The color which should be used if the actor work was done successfully.
layout.pages[pageNumber].trigger[coordinates].color.failed	-	false	The color which should be used if the actor work was done wrong.
layout.pages[pageNumber].plotter	-	false	Contains settings about the plotters on this page.
layout.pages[pageNumber].plotter.progressbar	-	false	Contains all progressbar plotter for this page.
layout.pages[pageNumber].plotter.progressbar[].datapoint	-	true	The reference for the underlying data point.
layout.pages[pageNumber].plotter.progressbar[].min	0	false	The minimum value of the progressbar.
layout.pages[pageNumber].plotter.progressbar[].max	100	false	The maximum value of the progressbar.
layout.pages[pageNumber].plotter.progressbar[].vertical	false	false	Is the progressbar a vertical one?
layout.pages[pageNumber].plotter.progressbar[].quadrant	whole pad	false	In which mathematical quadrant should the progressbar be plotted.
layout.pages[pageNumber].plotter.progressbar[].x	-	false	If the progressbar is vertical, where should the progressbar be plotted.
layout.pages[pageNumber].plotter.progressbar[].y	-	false	If the progressbar is horizontal, where should the progressbar be plotted.
layout.pages[pageNumber].plotter.progressbar[].rtl	false	false	Should the progressbar be filled from right to left?
layout.pages[pageNumber].plotter.progressbar[].fill	0,0	false	The filled color which should be used.
layout.pages[pageNumber].plotter.progressbar[].empty	0,3	false	The empty color which should be used.
layout.pages[pageNumber].plotter.static	-	false	Contains all static plotter for this page. A static plotter will color on button if an expression on the data point matches.
layout.pages[pageNumber].plotter.static[].datapoint	-	true	The reference for the underlying data point.
layout.pages[pageNumber].plotter.static[].pos	-	true	The coordinate where should plot.
layout.pages[pageNumber].plotter.static[].defaultColor	-	false	The color which should be used if no expression matches.
layout.pages[pageNumber].plotter.static[].expressions.eq	-	false	This expression matches if the data point is equal than the given value.
layout.pages[pageNumber].plotter.static[].expressions.eq[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.eq[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.ne	-	false	This expression matches if the data point is not equal than the given value.
layout.pages[pageNumber].plotter.static[].expressions.ne[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.ne[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.lt	-	false	This expression matches if the data point is less than the given value.
layout.pages[pageNumber].plotter.static[].expressions.lt[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.lt[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.lte	-	false	This expression matches if the data point is less or equal than the given value.
layout.pages[pageNumber].plotter.static[].expressions.lte[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.lte[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.gt	-	false	This expression matches if the data point is greater than the given value.
layout.pages[pageNumber].plotter.static[].expressions.gt[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.gt[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.gte	-	false	This expression matches if the data point is greater or equal than the given value.
layout.pages[pageNumber].plotter.static[].expressions.gte[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.gte[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.match	-	false	This expression matches if the data point matches the given regular expression the given value.
layout.pages[pageNumber].plotter.static[].expressions.match[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.match[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.nmatch	-	false	This expression matches if the data point not matches the given regular expression the given value.
layout.pages[pageNumber].plotter.static[].expressions.nmatch[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.nmatch[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.contains	-	false	This expression matches if the data point contains the given value.
layout.pages[pageNumber].plotter.static[].expressions.contains[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.contains[].color	-	false	The color which should be used if the expression matches.
layout.pages[pageNumber].plotter.static[].expressions.ncontains	-	false	This expression matches if the data point contains not the given value.
layout.pages[pageNumber].plotter.static[].expressions.ncontains[].value	-	false	This expression value.
layout.pages[pageNumber].plotter.static[].expressions.ncontains[].color	-	false	The color which should be used if the expression matches.

• pageNumber
  • The page number must be a number from 0 until 255.
  • or it can be a string representing the top page line, where each active button is a "1" nad the others "0"
    • for example: 10000001 (the first an last page button must be active for this page)
• coordinate
  • "X,Y" -> X and Y must have a value of 0-7.
• coordinates (plural)
  • represents a list of coordiantes
    • "X,Y" -> single coordinate
    • "0-7,Y" -> all X from 0 until 7 and given Y
    • "X,0-7" -> all Y from 0 until 7 and given X
    • "0-7,0-7" -> all X from 0 until 7 and all Y from 0 until 7
• color
  • "r,g" (Launchpad S) -> r is the red value of the color and must be between 0 and 3. g is the green value of the color and must be between 0 and 3.
  • "r,g,b" (Launchpad MK2) -> r is the red value of the color and must be between 0 and 63. g is the green value of the color and must be between 0 and 63. b is the blue value of the color and must be between 0 and 63.
• datapoint reference
  • sensorName.datapointName
• body template
  • You can define a go template as body content. In this template there are helper functions available:
    • .DataPoint "<sensor.datapoint>"
    • .DataPointOr "<sensor.datapoint>" ""
  • Example - print the data point available from sensor notebook:

    {{.DataPoint "notebook.available"}}  
    

  • Example - print the data point available from sensor notebook or "offline" if no data is available:

    {{.DataPointOr "notebook.available" "offline"}}  
    

  • The most public functions from go default lib are available:
    • strings
      • prefix: strings_
      • example: strings_Count
    • math
      • prefix: math_
      • example: math_Abs
    • strconv
      • prefix: strconv_
      • example: strconv_ParseBool
    • rand
      • prefix: rand_
      • example: rand_Int63
    • time
      • prefix: time_
      • example: time_Now
    • fmt_Sprintf
  • Furthermore there exists functions for basic arithmetic:
    • add - addition
    • sub - subtraction
    • mul - multiplication
    • div - diversion
  • Complex example - *add 13 to data point ram from sensor notebook:

    {{ $sr := .DataPointOr "notebook.ram" "0" }}
    {{ $r := strconv_Atoi $sr }}
    {{ add $r 13 }}
    

Special sensors

For each connection there is a "hidden" sensor which holds the connection status. This sensor can be used such like other sensors. You can reference them and use there datapoint(s). The name of the sensor is __connection[<connectionName>]. The name of the datapoint which holds the connection information is status. And it can have two states:

• Connected -> the corresponding connection is established
• Disconnected -> the corresponding connection is lost

Example:

connections:
 mqtt:
  test-broker:
   broker: tcp://broker-host:1883
   clientId: launchpad
layout:
 pages:
  0:
    plotter:
      static:
        - datapoint: __connection[test-broker].status
          pos: 0,0
            expressions:
              eq:
                - value: Connected
                  color: 0,3
                - value: Disconnected
                  color: 3,0

You will see a green light on the left top corner if the mqtt-connection "test-broker" is established, otherwise there is a red light!

Special keys

In the following you can read a description what do the special keys. The special keys are the round keys on the right side.

vol

With this key you can change the brightness. This feature is only available if you use a Launchpad MK2 with RGB-Colors.

pan

With this key you can switch between the different page navigation modes:

mode	color	description
Binary mode (default)	off	In this mode only the pressed page key is switched on/off.
Toggle mode	green	In this mode all page keys are switched off except the pressed page key.

arm

With this key you can switch between lock modes.

mode	color	description
Unlocked (default)	off	In this mode you can touch the pad keys and their underlying action will performed.
Locked	red	In this mode you can only touch the special or page keys. If you touch the pad keys, no action will performed.