In order for the Internet of Things to take off, wireless connectivity solutions with ultra low power, lost cost, and small footprint are needed. Atmel seems to have made a step in the right direction by launching SmartConnect Wi-Fi modules and Zigbee SoCs featuring an ARM Cortex M0+ core.
SmartConnect Wi-Fi does not appear to be a single chip solution, but instead Atmel has created a family of Wi-Fi modules integrating the company’s ultra-low power Wi-Fi SoChip with an ARM Cortex M0+ based MCU. These modules will enabled battery-powered Wi-Fi connectivity for IoT endpoints such as thermostats, and temperature sensors in a cost effective way. The company will provide a software solution with application and security protocols such as TLS, TCP/IP stack and an RTOS, all of which can be downloaded via Atmel Studio 6 Integrated Development Platform (IDP).
SmartConnect ZigBee SAM R21 combines an ARM Cortex M0+ core with a Zigbee RF receiver in a single chip which will be available in 5x5mm 32-pin and 7x7mm 48-pin packages, allowing ultra small solutions, and at the same time saving on BoM cost. These MCU can be used at high temperatures (Up to 125 C), and are suited to wireless lighting applications for instance.
There are currently 6 SAM R21 MCU with different flash size, I/O pin count and packages that share the following key benefits:
- ARM Cortex M0+ based MCU running up to 48MHz
- 64K to 256K of Flash memory
- Low power consumption at <70µA/MHz
- 12-channel DMA and event system
- Up to five serial communication modules (SERCOM)
- Full-Speed USB Device and embedded Host
- 12-bit ADC
- Hardware touch support
- Ultra-low power 2.4GHz transceiver
SAM R21 MCUs will also be supported by the wireless composer in Atmel Studio 6, and the company has already made a low cost development board, ATSAM R21 Xplained PRO, which will be available for $39 though the Atmel Store.
SAM R21 Xplained PRO kit features ATSAMR21G18A MCU (256KB Flash and 28 I/O pins in a QFN48 package), comes with 2 micro USB ports (Power/Target USB, and Embedded Debugger), and gives access to different signals via 2 headers including UART, SPI, TWI, 4x GPIOs, and Digital I/Os, as well as buttons and a LED, and of course an antenna connector.
Mass production for SmartConnect Wi-Fi will start in May 2014. ATSAM R21 series are already sampling to select customers, will sample to the public in at the end of March with mass production starting in July 2014. SAM R21 MCUs will sell for $2.75 and up in 10,000-piece quantities.
Atmel will also present numerous other innovations at Embedded World 2014. You can check their blog for a full list.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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