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pierre drezet edited this page Aug 20, 2025 · 1 revision
JSON Stream Parser Function Block Misc ↓ Params ↓ Ports ↓

The `JSON Stream Parser` function block processes a text stream and generates events related to JSON parsing. This function block is essential for systems that need to handle JSON data in real-time, parsing the content and triggering appropriate events based on the data received.

Name Type Default Min. Max. Description
n/a n/a n/a n/a n/a This block does not have configurable parameters.
In Ev. Description
read Event to initiate reading data from the input stream.
data JSON data to be parsed.
next Event to move to the next element in the JSON structure.
eos Event to indicate the end of the stream.
Data Out Description
startMap Event triggered when a new map (object) starts.
endMap Event triggered when a map (object) ends.
startArray Event triggered when a new array starts.
endArray Event triggered when an array ends.
mapKey Event triggered when a key in a map (object) is parsed.
Key Output that represents the parsed key in a map (object).
parent Output that represents the parent element in the JSON structure.
value Event triggered when a value is parsed.
dataType Indicates the type of data parsed (e.g., string, number, boolean).
data Parsed data value.
error Event triggered when an error occurs during parsing.
Toolbox core/io/net/netx/ui/media/dsp/ Version v1.0
Licence Type MPL2.0 Component Supplier inx ltd.
Minimum DCC A0000 Profiles All.

copyright inx limited, UK, 2025 - join the inxware community @appland

Core Components

Events & Triggers

State Management

  • STATE - Represents a State in Lucid
  • state_condition - Event driven state condition --> transition and actions
  • state_debug - To debug state machines this function block is required.
  • state_manager - Each state machine is defined by a State Manager

Array & Data Structures

Buffers & Queues

Primitive Data Constants

Data Converters

Boolean Logic

Mathematics

Alebraic Evaluation

Mathematical Operators

Inequalities

Trigonometry

Other Functions

Data Selection

  • indexed_mux_int - Indexed Mux Int
  • indexed_mux_str - Indexed Mux String
  • map_int - Map Int
  • mux_1b - mux_1b
  • mux_1i - mux_1i
  • mux_1r - mux_1r
  • mux_1s - mux_1s
  • mux_2b - MultiplexTwo Input Bool
  • mux_2i - MultiplexTwo Input Int
  • mux_2r - MultiplexTwo Input Real
  • mux_2s - MultiplexTwo Input String
  • mux_3b - MultiplexThree Input Bool
  • mux_3i - MultiplexThree Input Int
  • mux_3r - MultiplexThree Input Real
  • mux_3s - MultiplexThree Input String
  • mux_4b - MultiplexFour Input Bool
  • mux_4i - MultiplexFour Input Int
  • mux_4r - MultiplexFour Input Real
  • mux_4s - MultiplexFour Input String
  • mux_8b - 8-Input Indexed Boolean Multiplexer Function Block
  • mux_8i - 8-Input Indexed Integer Multiplexer Function Block
  • mux_8r - 8-Input Real Number Multiplexer Function Block
  • mux_8s - Number Multiplexer Function Block
  • num_mux - Numeric Multiplexer Function Block

Data Processing & Parsers

Database & Storage

Demultiplexers

String Functions

File Operations

Basic IO Components

GPIO & Hardware I/O

Graphics and UI Components

GUI & User Interface

User Input

  • keypress - Reads key presses & control keys

Unity & Web Integration

  • inx-unity - Provides media and animation widget interface
  • unity2 - Unity 3D
  • webkit - JavaScript/WebKit Interface (Obsolete)

Language & Localization

Media Components

Audio & Media

Digital TV & Media Control

Communications Components

TCPIP Network & Communication

Wireless & LPWAN Networks

Fieldbus Comms

Digital Signal Processing

  • ADC Polled Analogue to Digital converter.
  • ADC_continuous Advanced ADC supporting clocked ISR modes and advanced signal averaging.
  • FFT8 Fast Fourier Transform of 8 bit binary input data
  • FIR8 Finite Impulse Response filter for 8 bit binary data.
  • IIR8 Infinite Impulse Response filter for 8 bit binary data.
  • [calibrate](ADC calibrate) - Calibrates the ADCs

Control Systems Components

PID Controllers

Machine Learning & Machine Vision

  • mv_camera - Provides access to camera input data image streams
  • mv_idsplay - Renders camera image streams.
  • mv_resize - Resizes an image using given interpolation method
  • mv_crop - Crops and image width and height at a give offset
  • mv_apriltag_reader Plain Old Prgramming AprilTag Reader
  • ml_tflite_inference Machine learning model inference.
  • ml_osvm Online iterative machine learning (training& inference).

Platform Components

System Utilities

  • reboot - Reboot the device
  • rtc - RealTimeClock - provdes date/time from RTC device or OS.
  • rtinfo - RuntimeInfo (e.g. MAC/IP address, memory,... )
  • scheduler - Weekly Scheduler
  • system_exec - Executes linux shell commands
  • rng - Random Number Generator (may use hardware RNG)

Time Components

Application Management

Over the Air Update (OTA)

  • ota - OTA Function Block for updating firmware
  • ota_data_parser - Assembles OTA data files from Devman.

Non-functional Components

Some function blocks that can be used Lucid app are for visual/organisation purposes only and do not translate into any executable ert-components.

Sub System Input/Output Ports

-Note this file is autogenerated from ert-config help files and may not currently be complete or properly categorised!

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