Cylon.js is a JavaScript framework for robotics, physical computing, and the Internet of Things (IoT). It provides a simple, but powerful way to create solutions that incorporate multiple, different hardware devices concurrently. It is a next generation robotics framework with support for 43 different platforms. 

Cylon.js - JavaScript framework for Robotics, Physical computing, and the Internet of Things

Gobot is a framework using the Go programming language for robotics, physical computing, and the Internet of Things. It provides a simple, yet powerful way to create solutions that incorporate multiple, different hardware devices at the same time. It provides next generation robotics / IoT framework with support for 30 different platforms. 
 
Gobot provides drivers and adapters for controlling a wide variety of physical devices from low-level Arduino and Raspberry Pi, as well as drones, toys, and other complete devices that themselves have APIs.

Gobot is a framework using the Go programming language for robotics, physical computing, and the Internet of Things. It provides a simple, yet powerful way to create solutions that incorporate multiple, different hardware devices at the same time. It  provides next generation robotics / IoT framework with support for 30 different platforms.  

Gobot - ng framework for robotics, drones, and the Internet of Things (IoT)

SiteWhere is an open source platform for capturing, storing, integrating, and analyzing data from IoT devices. SiteWhere is a multi-tenant, application enablement platform for the Internet of Things (IoT) providing device management, complex event processing (CEP) and integration through a modern, scalable architecture. SiteWhere provides REST APIs for all system functionality.
 
<ul>
<li>Support for multiple tenants with separate data storage and processing pipelines</li>
<li>Device management including specifications, device groups, asset assignment, and much more</li>
<li>Device connectivity via JSON, MQTT, AMQP, and most other common protocols</li>
<li>Big data storage for device event data with support for MongoDB, HBase, and InfluxDB</li>
<li>Configurable event-processing pipline with support for alerting, scripting, and other advanced functions</li>
<li>Integration with Apache Sprark, Apache Solr, Mule Anypoint, Amazon SQS, Azure EventHubs, and many others</li>
</ul>

SiteWhere is an open source platform for capturing, storing, integrating, and analyzing data from IoT devices. SiteWhere is a multi-tenant, application enablement platform for the Internet of Things (IoT) providing device management, complex event processing (CEP) and integration through a modern, scalable architecture. SiteWhere provides REST APIs for all system functionality. 

SiteWhere - The Open Platform for Internet of Things (IoT)

Kamailio (successor of former OpenSER and SER) is an open source implementation of a SIP Signaling Server. SIP is an open standard protocol specified by the IETF. The core specification document is RFC3261.
 
The Kamailio SIP server is designed for scalability, targeting large deployments (e.g. for IP telephony operators or carriers, which have a large subscriber base or route a big volume of calls), but can be also used in enterprises or for personal needs to provide VoIP, Instant Messaging and Presence. Kamailio is well known for its flexibility, robustness, strong security and the extensive number of features.
 
Among the powerful features: asynchronous TCP, UDP and SCTP, secure communication via TLS for VoIP (voice, video, text); WebSocket support for WebRTC; IPv4 and IPv6; SIMPLE instant messaging and presence with embedded XCAP server and MSRP relay; asynchronous operations; IMS extensions for VoLTE; ENUM; DID and least cost routing; load balancing; routing fail-over; accounting, authentication and authorization; support for many backend systems such as MySQL, Postgres, Oracle, Radius, LDAP, Redis, Cassandra, MongoDB, Memcached; Json and XMLRPC control interface, SNMP monitoring.

Kamailio (successor of former OpenSER and SER) is an open source implementation of a SIP Signaling Server. SIP is an open standard protocol specified by the IETF. The core specification document is RFC3261.

Kamailio - The Open Source SIP Server

The open Home Automation Bus (openHAB) project aims at providing a universal integration platform for all things around home automation.  It is an open-source solution based on the Eclipse SmartHome framework. openHAB brings together different bus systems, hardware devices and interface protocols by dedicated bindings. These bindings send and receive commands and status updates on the openHAB event bus. 



Openhab - The OSGi-based Open Home Automation Bus

IoT.js is a framework for "Internet of Things" built on lightweight JavaScript interpreter 'JerryScript' and libtuv for event driven(non-blocking I/O model) similar to node.js. IoT.js aims to provide inter-operable service platform in the world of IoT, based on web technology. The target of IoT.js is to run in resource constrained devices such as only few kilobytes of RAM available device. Thus it will supports very wide range of "Things".


iotjs - Platform for Internet of Things with JavaScript

Freeboard is a turn-key HTML-based "engine" for dashboards. Besides a nice looking layout engine, it provides a plugin architecture for creating datasources (which fetch data) and widgets (which display data)— freeboard then does all the work to connect the two together. Another feature of freeboard is its ability to run entirely in the browser as a single-page static web app without the need for a server. 

Freeboard - Dashboard for Internet of Things

Node-RED is a tool for wiring together hardware devices, APIs and online services in new and interesting ways. Node-RED provides a browser-based flow editor that makes it easy to wire together flows using the wide range nodes in the palette. Flows can be then deployed to the runtime in a single-click.

Node-RED - A visual tool for wiring the Internet of Things

TDengine is an open-source big data platform designed and optimized for Internet of Things (IoT), Connected Vehicles, and Industrial IoT. Besides the 10x faster time-series database, it provides caching, stream computing, message queuing and other functionalities to reduce the complexity and costs of development and operations.
 
<ul><li>10x Faster on Insert/Query Speeds: Through the innovative design on storage, on a single-core machine, over 20K requests can be processed, millions of data points can be ingested, and over 10 million data points can be retrieved in a second. It is 10 times faster than other databases.</li><li>1/5 Hardware/Cloud Service Costs: Compared with typical big data solutions, less than 1/5 of computing resources are required. Via column-based storage and tuned compression algorithms for different data types, less than 1/10 of storage space is needed.</li><li>Full Stack for Time-Series Data: By integrating a database with message queuing, caching, and stream computing features together, it is no longer necessary to integrate Kafka/Redis/HBase/Spark or other software. It makes the system architecture much simpler and more robust.</li><li>Powerful Data Analysis: Whether it is 10 years or one minute ago, data can be queried just by specifying the time range. Data can be aggregated over time, multiple time streams or both. Ad Hoc queries or analyses can be executed via TDengine shell, Python, R or Matlab.</li><li>Seamless Integration with Other Tools: Telegraf, Grafana, Matlab, R, and other tools can be integrated with TDengine without a line of code. MQTT, OPC, Hadoop, Spark, and many others will be integrated soon.</li><li>Zero Management, No Learning Curve: It takes only seconds to download, install, and run it successfully; there are no other dependencies. Automatic partitioning on tables or DBs. Standard SQL is used, with C/C++, Python, JDBC, Go and RESTful connectors.</li></ul><div> </div>

TDengine is an open-source big data platform designed and optimized for Internet of Things (IoT), Connected Vehicles, and Industrial IoT. Besides the 10x faster time-series database, it provides caching, stream computing, message queuing and other functionalities to reduce the complexity and costs of development and operations.

TDengine -  Big data platform designed and optimized for the Internet of Things

GridDB is an In-Memory NoSQL Database for highly scalable IoT applications . It has a KVS (Key-Value Store)-type data model that is suitable for sensor data stored in a timeseries. It is a database that can be easily scaled-out according to the number of sensors. High Reliability It is equipped with a structure to spread out the replication of key value data among fellow nodes so that in the event of a node failure, automatic failover can be carried out in a matter of seconds by using the replication function of other nodes.
 
GridDB utilizes a “Memory first, Storage second” structure. “Hot” data is kept in-memory, allowing for much faster writes/reads on the most-used data.

 GridDB is an In-Memory NoSQL Database for highly scalable IoT applications . It has a KVS (Key-Value Store)-type data model that is suitable for sensor data stored in a timeseries. It is a database that can be easily scaled-out according to the number of sensors. High Reliability It is equipped with a structure to spread out the replication of key value data among fellow nodes so that in the event of a node failure, automatic failover can be carried out in a matter of seconds by using the replication function of other nodes. 

Griddb - High performance, High scalability and High reliability database for big data

Pycopy aims to develop and maintain a minimalist, lightweight, and extensible implementation of Python(-compatible) language. Pycopy to CPython is a similar thing as Scheme to Common Lisp. Pycopy works similarly well in the cloud, on desktop systems, on small embedded systems, and scales all the way down to microcontrollers.  It is originally based on MicroPython.

Pycopy - A minimalist and memory-efficient Python implementation. Good for desktop, cloud, constrained systems, microcontrollers, and just everything

PLC4X is a set of libraries for communicating with industrial programmable logic controllers (PLCs) using a variety of protocols but with a shared API. It allows you to communicate directly with your industrial Hardware, without having to retrofit it. It implements drivers for the most common industrial communication protocols.
  

Apache PLC4X - Create a set of libraries, that allow unified access to any type of PLC

Eclipse Ditto is an open source framework helping you to build digital twins of devices connected to the internet. It is by design domain agnostic and thus may be used in
industrial, residential, agricultural and many other IoT domains. A digital twin is a virtual, cloud based, representation of his real world counterpart (real world “Things”, e.g. devices like sensors, smart heating, connected cars, smart grids, EV charging station)

Eclipse Ditto - An open source framework helping you to build digital twins of devices connected to the internet

Zetta is an open source platform built on Node.js for creating Internet of Things servers that run across geo-distributed computers and the cloud. Zetta combines REST APIs, WebSockets and reactive programming – perfect for assembling many devices into data-intensive, real-time applications.
 
Zetta turns any device into an API. Zetta servers communicate with microcontrollers like Arduino and Spark Core giving every device a REST API both locally and in the cloud.
 
Zetta's architecture is optimized for data-intensive, real-time applications. Zetta allows you to observe and react to device and system behavior in code and using visualization tools so that you gain actionable insights and take insightful actions.

Zetta is an open source platform built on Node.js for creating Internet of Things servers that run across geo-distributed computers and the cloud. Zetta combines REST APIs, WebSockets and reactive programming – perfect for assembling many devices into data-intensive, real-time applications.

Zetta - An API-First Internet of Things Platform

JerryScript is a lightweight JavaScript engine for resource-constrained devices such as microcontrollers. It can run on devices with less than 64 KB of RAM and less than 200 KB of flash memory. The engine supports on-device compilation, execution and provides access to peripherals from JavaScript. It provides snapshot support for precompiling JavaScript source code to byte code.

JerryScript - JavaScript engine for the Internet of Things

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