[EEVSE] Add TC_EEVSE_2_8 [Plug and Charge] feature support (#39641) * Added new TestEvent trigger codes to python and C++ * Added TE trigger support for SoC * Updated Energy Management App zap file to enable SoC, BatteryCapacity and other attributes needed in 1.5 * Initial version of TC_EEVSE_2_7 basic steps 1-7 * regen_all to get .matter file update * Restyled by clang-format * Added more test steps to 2.7 and used feature_guard and mark_all_remaining_steps_skipped() if not present * Enabled SoC and other features in Delegate example. * Added steps 9-10d (passing) * Moved charging target functions from EEVSE_2_3.py into EEVSE_Utils.py * fixed import issues missed in the move * Added steps 11a-d (failing due to delegate implementation - spec says if SoC is present then the nextEnergyRequired should be null) * Restyled by isort * Fix cast issue seen on some platforms * Refactored ComputeChargingSchedule to split out DetermineRequiredEnergy and ComputeStartTime to better support SoC based charging. * Fixed incorrect constraint check now that SoC reporting is enabled TC_EEVSE_2_3 was failing. * Fixed major typo! * Added steps 12a-14d. Fixed setting of NextStartTime to Null if SoC > TargetSoC * Finished test steps for 2.7 * Enforce TargetSoC to be null if we fall back to AddedEnergy charging mode (Step 17d failed) * Fixed Lint failures * Things spotted during self-review, and re-fix 2.3 test which was failing. Removed TODO around setting voltage with sensible EU default * Noticed that kMinimumChargeCurrent appears in autogen field index so renamed variable to kMinimumChargeCurrentLimit * Apply suggestions from code review Co-authored-by: Sergio Soares <sergiosoares@google.com> * Fixed things which got broken after applying code review changes via GitHub * Corrected battery capacity to be 70kWh not 7kWh * Added comments per review about Matter Epoch date * Fixes #30993 - added a HwGetVehicleID API and removed use of heap (new/delete) * Added TE trigger for setting the VehicleID to something other than NULL * Added TC_EEVSE_2_8.py * Added Gemini code review suggestions * Revert "Fixed incorrect constraint check now that SoC reporting is enabled TC_EEVSE_2_3 was failing." This reverts commit 3dad7c33b048256509496cc529b07c13b4519fb3. * Per review comment - this probably should have been InvalidCommand. * Added decorator and FeatureMap logging * Reworked TC_EEVSE_2.3 to handle kSoCReporting which started failing if TargetSoC was not included in SetTargets. Added new matter mark_step_range_skipped() into matter_testing.py * Revert "Reworked TC_EEVSE_2.3 to handle kSoCReporting which started failing if TargetSoC was not included in SetTargets. Added new matter mark_step_range_skipped() into matter_testing.py" This reverts commit f826d9d3e95555a68dc74ce2c9b0bafb2efeb6d2. * Reworked TC_EEVSE_2.3 to handle kSoCReporting which started failing if TargetSoC was not included in SetTargets. Added new matter mark_step_range_skipped() into matter_testing.py * Updated TC_EEVSE_2.8 with decorator to run test if it has PNC feature * Updated TestSteps for TC_EEVSE_2.7 * Restyled by isort * fixed lint error 2.3 & 2.7 * fixed lint error 2.8 * Restyled by isort * Applied comment to use _span * Changed to use CopyCharSpanToMutableCharSpan per suggestion * Update examples/energy-management-app/energy-management-common/energy-evse/src/EnergyEvseDelegateImpl.cpp Co-authored-by: Sergio Soares <sergiosoares@google.com> * Fixed crash on shutdown caused when freeing the buffer. This is no longer dynamically allocated so we don't need to delete it in destructor * Addition additional length check to the test of VehicleID attribute. * Re-ordered if statements in hwSetVehicleID to avoid marking attribute as dirty if it was already null --------- Co-authored-by: Restyled.io <commits@restyled.io> Co-authored-by: Sergio Soares <sergiosoares@google.com>
Builds
Tests
Tools
Documentation
Matter (formerly Project CHIP) creates more connections between more objects, simplifying development for manufacturers and increasing compatibility for consumers, guided by the Connectivity Standards Alliance.
Matter is a unified, open-source application-layer connectivity standard built to enable developers and device manufacturers to connect and build reliable, and secure ecosystems and increase compatibility among connected home devices. It is built with market-proven technologies using Internet Protocol (IP) and is compatible with Thread and Wi-Fi network transports. Matter was developed by a Working Group within the Connectivity Standards Alliance (Alliance). This Working Group develops and promotes the adoption of the Matter standard, a royalty-free connectivity standard to increase compatibility among smart home products, with security as a fundamental design tenet. The vision that led major industry players to come together to build Matter is that smart connectivity should be simple, reliable, and interoperable.
Matter simplifies development for manufacturers and increases compatibility for consumers.
The standard was built around a shared belief that smart home devices should be secure, reliable, and seamless to use. By building upon Internet Protocol (IP), Matter enables communication across smart home devices, mobile apps, and cloud services and defines a specific set of IP-based networking technologies for device certification.
The Matter specification details everything necessary to implement a Matter application and transport layer stack. It is intended to be used by implementers as a complete specification.
The Alliance officially opened the Matter Working Group on January 17, 2020, and the specification is available for adoption now.
Visit buildwithmatter.com to learn more and read the latest news and updates about the project.
Matter is developed with the following goals and principles in mind:
Unifying: Matter is built with and on top of market-tested, existing technologies.
Interoperable: The specification permits communication between any Matter-certified device, subject to users’ permission.
Secure: The specification leverages modern security practices and protocols.
User Control: The end user controls authorization for interaction with devices.
Federated: No single entity serves as a throttle or a single point of failure for root of trust.
Robust: The set of protocols specifies a complete lifecycle of a device — starting with the seamless out-of-box experience, through operational protocols, to device and system management specifications required for proper function in the presence of change.
Low Overhead: The protocols are practically implementable on low compute-resource devices, such as MCUs.
Pervasive: The protocols are broadly deployable and accessible, by leveraging IP and being implementable on low-capability devices.
Ecosystem-Flexible: The protocol is flexible enough to accommodate deployment in ecosystems with differing policies.
Easy to Use: The protocol provides smooth, cohesive, integrated provisioning and out-of-box experience.
Open: The Project’s design and technical processes are open and transparent to the general public, including non-members wherever possible.
Matter aims to build a universal IPv6-based communication protocol for smart home devices. The protocol defines the application layer that will be deployed on devices and the different link layers to help maintain interoperability. The following diagram illustrates the normal operational mode of the stack: 
The architecture is divided into layers to help separate the different responsibilities and introduce a good level of encapsulation among the various pieces of the protocol stack. The vast majority of interactions flow through the stack captured in the following Figure:
Security: An encoded action frame is then sent down to the Security Layer to encrypt and sign the payload to ensure that data is secured and authenticated by both sender and receiver of a packet.
Message Framing & Routing: With an interaction encrypted and signed, the Message Layer constructs the payload format with required and optional header fields; which specify the message's properties and some routing information.
Matter’s design and technical processes are intended to be open and transparent to the general public, including to Working Group non-members wherever possible. The availability of this GitHub repository and its source code under an Apache v2 license is an important and demonstrable step to achieving this commitment. Matter endeavors to bring together the best aspects of market-tested technologies and redeploy them as a unified and cohesive whole-system solution. The overall goal of this approach is to bring the benefits of Matter to consumers and manufacturers as quickly as possible. As a result, what you observe in this repository is an implementation-first approach to the technical specification, vetting integrations in practice. The Matter repository is growing and evolving to implement the overall architecture. The repository currently contains the security foundations, message framing and dispatch, and an implementation of the interaction model and data model. The code examples show simple interactions, and are supported on multiple transports -- Wi-Fi and Thread -- starting with resource-constrained (i.e., memory, processing) silicon platforms to help ensure Matter’s scalability.
We welcome your contributions to Matter. Read our contribution guidelines here.
Instructions about how to build Matter can be found here .
The Matter repository is structured as follows:
| File/Folder | Content |
|---|---|
| build | Build system support content and built output directories |
| build_overrides | Build system parameter customization for different platforms |
| config | Project configurations |
| credentials | Development and test credentials |
| docs | Documentation, including guides. Visit the Matter SDK documentation page to read it. |
| examples | Example firmware applications that demonstrate use of Matter |
| integrations | 3rd party integrations |
| scripts | Scripts needed to work with the Matter repository |
| src | Implementation of Matter |
| third_party | 3rd party code used by Matter |
| zzz_generated | ZAP generated template code - Revolving around cluster information |
| BUILD.gn | Build file for the GN build system |
| CODE_OF_CONDUCT.md | Code of conduct for Matter and contribution to it |
| CONTRIBUTING.md | Guidelines for contributing to Matter |
| LICENSE | Matter license file |
| REVIEWERS.md | PR reviewers |
| gn_build.sh | Build script for specific projects such as Android, EFR32, etc. |
| README.md | This file |
Matter is released under the Apache 2.0 license.