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The Internet of Things may come - CrumbX1-NET V1.2 is a highly integrated embedded internet ethernet module with the Atmel AVR ATxmega128D3 microcontroller, CP2201 ethernet controller, transformer, RJ45 modular jack, USB interface and a micro-SD card slot and provides a convenient and simple to use solution for Internet of Things applications.
The CrumbX1-Net ethernet interface is based on Silcon Labs CP2201 10Mbit ethernet controller with integrated phy. Additionally the ethernet transformer is already integrated on Crumb644-Net, hence no high-cost RJ45 jack with integrated transformer is required! A simple RJ45 header is suitable for connecting the Crumb644-Net to the network.
In addition to the ethernet interface a USB UART converter is integrated on the board, which is a comfortable way for ethernet configuration or to show debug output during development.
Embedded TCP/IP Stack und Webserver
uIP is an implementation of the TCP/IP protocol stack, optimized for small 8 bit microcontrollers. uIP provides all necessary protocols for internet connectivity, with a very small code footprint and RAM requirements. uIP is open source software, developed in C and may be freely used in both non-commercial as well as commercial projects. uIP is covered by the BSD-Style License. Further information in uIP is available on the uIP/Contiki homepage.
A port of the uIP Embedded TCP/IP Stack and webserver for the CrumbX1-Net is available: NET-IO-Modul Firmware V2.11.11 (uIP Stack, Webserver, Email, etc..
For Windows and Atmel Studio 6 users we have extended the firmware by Stefan Frings by an Atmel Studio 6 project: NET-IO-Modul_v2.11.11_2013-05-21_Studio_6.zip.
Scope of Delivery
CrumbX1-NET is shipped without pin headers, since everybody likes different types (up, down, male, female, etc.). A Connector Kit with high quality pins and receptacles, link LED, RJ45 connector and mini USB connector can be ordered as an option.
You can find further information in the Infosheet.
- ATxmega128D3 (128k Flash, 8k SRAM, 2k EEPROM)
- 4-Pin PDI Interface (adapter to standard 6-pin interface is included in the Connector Kit)
- CP2102 USB UART Wandler an USARTC0
- CP2201 Ethernet Controller (MAC+PHY) with separate 20MHz crystal
- XTAL crystal can be assembled on bottom side optionally
- Connectors: 2x 16-pin with most processor signals, 1x 4-pin PDI, mini USB-B (5-pin), Power-Over-Ethernet Addon (coming soon)
- micro-SD card slot
- 2.54mm (1/10inch) pin grid
- Size: 40.64mm x 30.48mm
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