Microchip Technology AVR-IoT WA Development Board (EV15R70A)

Microchip Technology AVR-IoT WA Development Board (EV15R70A) is an ideal foundation for building a cloud-connected design supported by Amazon Web Services (AWS). Combining a powerful microcontroller, a CryptoAuthentication™ secure element, and a fully certified Wi-Fi® network controller, the AVR-IoT WA Board offers a simple and effective way to connect embedded applications to the Amazon Web Services (AWS) Cloud platform. Leveraging the Microchip Trust Platform, the AVR-IoT WA from Microchip Technology comes pre-provisioned and ready to upload light and temperature sensor data to the free sandbox account, where the data can be visualized in real-time on a dedicated web page.

Smart

The PIC-IoT WA Development Board is based on the ATmega4808 8-Bit AVR® Microcontroller. This powerful and efficient MCU handles dataflow to the Cloud, enables users to expand upon the IoT functionality, and add customized sensors into the application. For rapid prototyping, the IoT Development Boards are supported by both Studio 7 and MPLAB® X IDEs as well as graphical development tools such as START and MPLAB Code Configurator (MCC). These tools simplify connecting existing applications to the cloud or developing new IoT designs.

Connected

The AVR-IoT WA also features the ATWINC1510, a single-band 2.4GHz Wi-Fi network controller that is optimized for low-power IoT applications. Featuring extremely low power consumption, the ability to store various security certificates, and 8Mb of onboard Flash memory, this device offloads all networking tasks from the main CPU while automatically providing a secure socket connection and server authentication to the Cloud.

The AVR-IoT WA Development Board comes pre-associated with a default shared AWS Cloud (sandbox) account for immediate successful authentication and data sharing without a custom user account. At any time, users can disconnect the board from the default sandbox and register to a new, private account.

Secure

The AVR-IoT WA Development Board entrusts data encryption to the CryptoAuthentication ATECC608A Secure Element. By employing ultra-secure key storage, cryptographic countermeasures, and obscuring private keys from both users and software this secure element ensures the highest fidelity of transmission to the cloud.

Customizable

The onboard mikroBUS™ connector allows for both the seamless integration of any MIKROE® Click™ boards and the ability to quickly interface with other sensors or actuators that support the popular footprint. With over 700 click boards to choose from, the PIC-IoT WA Development Board can rapidly be made into an IoT-enabled motion detector, heart rate monitor, or almost anything else you can imagine.

A USB Mass Storage interface allows easy drag-and-drop updates of the microcontroller Flash memory and configuration of Wi-Fi credentials. The integrated USB serial port can also be used for diagnostics and to support a command-line interface.

Features

ATmega4808 8-Bit AVR Microcontroller
- AVR RISC CPU
- 48KB Flash Memory and 6KB SRAM
WINC1510 Wi-Fi SmartConnect IoT Module
- IEEE^® 802.11b/g/n 20MHz (1 × 1) solution
- Single spatial stream in 2.4GHz ISM band
- Supports IEEE 802.11 WEP, WPA, WPA2 security
- Supports full networking stack (including TLS)
- UART, SPI peripherals
- 8Mb Flash memory
- 28-pin package
ATECC608A CryptoAuthentication
- 1mA typical operating current
- Protected storage for 16 keys
- Ephemeral key generation and key agreement in SRAM
- Encryption/authentication for messages to prevent onboard attacks
- Supported Algorithms
  - Elliptic Curve Diffie-Hellman (ECDH)
  - SHA-256
  - Elliptic Curve Digital Signature Algorithm (ECDSA)
  - AES-128 ECB/GCM
MCP9808 Digital Temperature Sensor
- 0.25°C typical accuracy
- -40°C to +125°C operating range
- Configurable temperature window limit
- Configurable critical temperature limit
- Configurable measurement resolution: +0.5°C, +0.25°C, +0.125°C, +0.0625°C

TEMT6000 Ambient Light Sensor
- Range of spectral bandwidth: 440nm to 800nm
- Peak sensitivity: 570nm
- Angle of half sensitivity: ±60°
- Adapted to human eye responsivity
MIC33050 Voltage Regulator
- 600mA PWM control scheme
- HyperLight Load^®
- 2.7V to 5.5V input voltage range
- 1.0V, 1.2V, 1.8V, 3.3V adjustable output voltage
- Typical quiescent current draw of 20µA
- >85% efficiency at 1mA
MCP73871 Battery Charge Management Controller
- 4.10V, 4.20V, 4.35V, 4.40V preset charge voltage options
- Complete linear charge management controller
- Charge safety timers
- Temperature monitor
- Integrated current sense
- Low Battery status indicator (LBO)
- Power-Good status indicator (PG)
mikroBUS™ footprint for MikroElektronika Click boards
4x status LEDs (Wi-Fi, CONN, DATA, ERROR)
USB power, debugging, and UART communication
Drag-and-drop programmer