Imixs-Workflow IoT

The Imixs-Workflow IoT project provides a set of connectors and services to process data generated by IoT devices with the Imixs-Workflow platform. With the provided adapter classes data produced by a micro controller like Arduino A 32 bit microcontroller RP2040(https://datasheets.raspberrypi.org/rp2040/rp2040-datasheet.pdf) can be easily processed just by describing a workflow in a BPMN 2.0 model.

In this way it is for example possible to react on senor data like temperature, humidity, movement, acceleration and any other things provided by a IoT device, and start some kind of human centric workflow. This includes monitoring, alerting or control IoT devices.

Imixs-Workflow IoT provides a set of adapter classes to connect a IoT device to the Imixs Workflow engine without the need for in-depth knowledge in micro controller programming. For example, reaching a certain temperature range can directly trigger an alarm from a technician.

Imixs-Workflow IoT includes a Web Server with a modern Web interface to monitor connected IoT devices and react on certain events.

Arduino Nano RP2040 Connect

The Arduino Nano RP2040 Connect has the same form-factor and pinout as the original Arduino Nano 8-bit AVR board, but this is a powerful board with both an RP2040 and an ESP32, the latter embedded within a u-blox NINA-W102 WiFi and Bluetooth module.

The board has some pretty impressive features:

• RP2040 Dual-core MCU
• WiFi 801.11b/g/n
• Bluetooth and BLE 4.2
• 6-axis IMU with Machine Learning
• MEMS Microphone Module
• Cryptographic Coprocessor
• Internal switching power supply
• 16Mb Flash Memory
• Onboard RGB LED

Read the section Arduino for details how to work with Arduino boards.

Sensor Data

In the following basic szenario the Ardoino controller is connected directly to two external sensors.

 ╔═╧═╧═╧═╧═╧═╧══╗
 ║ Ardoino Nano ║
 ╚═╤═╤═╤═╤═╤═╤══╝
     │   │          ╭────────╮ 
     │   ╰──────────┤Sensor-2│   
     │              ╰────────╯
╭────┴───╮     
│Sensor-1│     
╰────────╯     

The data can be controlled by Imixs-IoT based on a BPMN 2.0 model definition.

Inter Controller Communication

In a more complex situation you can also connect an existing microcontroler to the Ardoino Contrller. In this case you need to re-map the GPIO and connect the Ardoino controller.

 ╔═╧═╧═╧═╧═╧═╧═╧═╧══╗
 ║                  ║
 ║ Ext Conroller-1  ║
 ║                  ║
 ╚═╤═╤═╤═╤═╤═╤═╤═╤══╝
         │
         ╰─────────╮
                 ╔═╧═╧═╧═╧═╧═╧══╗
                 ║ Ardoino Nano ║
                 ╚═╤═╤═╤═╤═╤═╤══╝

Docker

To build the artifact from sources run:

$ mvn clean install

To build the new Docker Image run:

$ mvn clean install -Pdocker

To run Wildfly Server in debug mode (port 8787) you can build the Docker Image with:

$ mvn clean install -Pdebug

Run

To start the Imixs-Process Manger with docker-compose, run:

$ docker-compose -f docker-compose-dev.yaml up