Low-Cost Gateway Reference Design

Low-Cost GatewayReference Design

•ZigBee to Ethernet Gateway •8-Bit AVR Wireless SoC•Embedded TCP/IP MAC-PHY•MFG Ready Design

Copyright Atmel Corporation 2013. All Rights reserved.

System Highlights

•ZigBee to Wired Ethernet Connection

•Ready for Manufacturing Design.

•Low-Cost 2-layer PCB layout

•Atmel Atmega256RFR2 8-bit AVR CPU

•WIZnet W5200 Hardware Ethernet MAC & PHY

•Low-Cost RF PHY with PCB Antenna

•Industry standard USB Micro-B Power Inlet

•AT24MAC602 MAC ID PROM

•Optional Serial Flash Socket


Block Diagram


CPU features and Benefits

•Atmel Atmega256RFR2 • Monolithic CPU and IEEE802.15.4 Radio• 8-Bit AVR Architecture• 256k Flash, 8k EEPROM, 32k SRAM• Outstanding RF performance

•Good fit for Gateway-Coordinator roll

•Enough CPU for Coordinator, Data Concentrator and Ethernet Queuing tasks

•Lower cost than 32-bit solutions with Embedded OS

•Free ZigBee, IEEE802.15.4 and LW-Mesh stacks available


Ethernet MAC Features and Benefits

•WIZnet W5200 Ethernet Controller• Hardwired TCP/IP controller• 10/100 Ethernet MAC & PHY• TCP, UDP, ICMP, IPV4 and Ethernet Protocols

•Excellent cost to performance balance for Gateway roll

www.wiznettechnology.com


RF Features and Benefits

•ATmega256RFR2 System on a Chip+3.5 dB Transmit Power-100 Receiver Sensitivity.

•Large PCB AntennaHalf-wave dipole designSimple and efficient radiatorLarge effective area for excellent receiver gainDirect connection to SoC, minimal loss in Tx path+6 db Link-budget improvement over chip antennas2x range improvement over chip antennas

•No Balun cost•No Chip Antenna cost•No LNA/PA or FEM cost•No Coax Connector cost


Other Features

•Atmel AT24MAC602 TWI EEPROMDesigned for storage of EUI-48 AddressesPerfect for Ethernet and ZigBee addressAlso persistent storage

•Optional Flash socket for field upgrade, web page, electronic datasheets (TEDS) or scratch pad. •USB Micro-B power inlet. Can use industry standard cell-phone chargers, wall-warts or Access-Point USB jacks.•Spare Button and LED for binding stimulus and indication•Power Good LED•Reset* button•UART Connection for Mass-Production Testing•Low-Cost RJ-45 MAG-Jack•Altium Source files available•MFG files available: Schematics, Gerbers, BOMs, RF Performance Test•Overall Size 4 1/2 x 2 1/8 inches (110 x 55mm)


Low-Cost Gateway in ZigBee to Android Demo


Budgetary Pricing

•Estimated BOM costs using Digikey retail web pricing for small volumes

•Fully Populated $20.01/1k

•Minimal Population $16.96/1k

•Both Atmel and Wiznet are committed to aggressive pricing at high volume.

•Call for a quote.

Low-Cost Gateway Reference Design

Documents

Transcript of Low-Cost Gateway Reference Design