1. Introduction
Anjay Lite is a library implementing the OMA Lightweight Machine to Machine (LwM2M) protocol, including essential CoAP functionality.
This project is developed and maintained by AVSystem.
1.1. Supported protocol version
This implementation is based on the following specification documents:
- Lightweight Machine to Machine Technical Specification: Core
- Lightweight Machine to Machine Technical Specification: Transport Bindings
1.2. Supported features
1.2.1. Features currently supported
Support for both LwM2M 1.1 and 1.2
Interfaces - Bootstrap support - Client Registration support - Device Management and Service Enablement support - Information Reporting support
Transport - Support for UDP Binding
Content Formats - Input: TLV, PlainText, Opaque, CBOR, SenML CBOR, LwM2M CBOR - Output: PlainText, Opaque, CBOR, SenML CBOR, LwM2M CBOR
Preimplemented LwM2M Objects - Security (
/0) - Server (/1) - Device (/3) - Firmware Update (/5)
1.3. Technical information
Anjay Lite is implemented in standards-compliant C99 and depends only on widely available functions from the standard C library. This makes it suitable for a wide range of platforms, including bare-metal systems without an operating system. While its core does not rely on OS-specific features, it can be compiled with POSIX networking and time interfaces out of the box.