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Getting started is easy with free lightweight TCPIP stacks to create customized applications that are easily implemented via MPLAB® Code Configurator and Atmel START.

User Code

  • Application customization
  • Extensive AVR® and PIC® microcontroller (MCU) options
  • Quick-start development environment

Data Model and Management

  • Constrained Application Protocol (CoAP)
  • Foundation of Cisco’s Digital Building Ecosystem
  • Path to multi-vendor product interoperability

TCP/IP Stacks

  • Optimized TCP and UDP stacks
  • Proprietary or standards protocol support
  • Quick application integration via:
    • MPLAB Code Configurator (MCC)
    • Atmel START
    • MPLAB Harmony

Ethernet Stack (memory size)

ATmega and
ATtiny MCUs
  Flash RAM Flash RAM Flash RAM
UDP 14.8 KB 750B 14.3 KB 763B 14.2 KB 378B
UDP with TCP 23.9 KB 809B 31.7 KB 840B 19.1 KB 483B
UDP with CoAP  (no TCP) 20.5 KB 1.2 KB 21 KB
1270B 17 KB 800B


We have collaborated with Cisco to enable the Digital Building Ecosystem by developing a standards-based CoAP communication layer with application-specific data models, minimizing the challenges in creating interoperable products from various vendors. Use the link below to go to Cisco's website to learn about the Digital Building Ecosystem and download the partners guide.

Email us with questions or comments at EoE@microchip.com.

Ethernet Collateral

Title Download
AN1921 - Microchip TCP/IP Lite Stack Download
AN2512 - Microchip CoAP Stack Download
Title Download
Ethernet of Everything Sell Sheet Download
Title Download
EoE_DB_v1.0.1 Download
Title Download
PIC18 PoE Development Kit User's Guide Download
Title Download
tcpiplitestack_v2.1.1.zip Download
Microsoft Word - release_notes_COAP_library_v1_0_0.docx Download
CoAP Download

Hardware Design Files

Title Download
Single_Channel_LED_Driver_Extension_Board.zip Download
IO_Starter_Extension_Board.zip Download
Gesture_Controller_Extension_Board.zip Download
PIC18_PoE_Main_Board.zip Download
PoE_Programmer_Adapter_Board.zip Download

Connectivity Resources