ATAVRBLE-IOT

Secure AVR BLE IoT Node - Hardware User Guide Secure AVR BLE IoT Node - Hardware User Guide Introduction This is the hardware user guide for the Secure AVR BLE IoT Node field engagement board, based on the ATtiny1617, a high performance tinyAVR 8-bit Microcontroller. The board is a hardware platform to address the IoT markets. Secure AVR BLE IoT Node incorporates ATtiny1617 microcontroller, RN4871 Bluetooth 4.2 Low Energy full certified Module, and CryptoAuthentication device ATECC508A, and 3-axis accelerometer with temperature sensor to demonstrate a complete solution for a typical IoT end node. Supported by the Atmel START and Atmel Studio development platform. It is provided with fully documented software and hardware which will significantly reduce design complexity and the time-to- market. The users can refer to the source code and firmware user guide available at Atmel START Secure AVR BLE IoT Node - Hardware User Guide Table of Contents Introduction......................................................................................................................1 Features.......................................................................................................................... 1 1. Prerequisites..............................................................................................................3 2. Overview....................................................................................................................4 2.1. System Overview......................................................................................................................... 4 2.2. Block Diagram..............................................................................................................................5 2.3. Operation Guide...........................................................................................................................6 3. Hardware Details....................................................................................................... 7 3.1. Microcontroller..............................................................................................................................7 3.2. Bluetooth Low Energy Module..................................................................................................... 7 3.3. Security and Authentication..........................................................................................................8 3.4. 3-axis Accelerometer....................................................................................................................9 3.5. Power Supply............................................................................................................................. 10 3.6. User Interface.............................................................................................................................10 3.6.1. Touch Button................................................................................................................10 3.6.2. Status LEDs.................................................................................................................10 3.7. UPDI Programming Interface..................................................................................................... 11 4. Firmware..................................................................................................................12 4.1. ATtiny1617 Default Firmware..................................................................................................... 12 4.1.1. Firmware Programming............................................................................................... 12 4.2. RN4871 BLE Module Firmware..................................................................................................14 4.2.1. Firmware Programming............................................................................................... 14 4.2.2. RN4871 Bluetooth Module Configuration.................................................................... 16 5. Revision History.......................................................................................................17 The Microchip Web Site................................................................................................ 18 Customer Change Notification Service..........................................................................18 Customer Support......................................................................................................... 18 Microchip Devices Code Protection Feature................................................................. 18 Legal Notice...................................................................................................................19 Trademarks................................................................................................................... 19 Quality Management System Certified by DNV.............................................................20 Worldwide Sales and Service........................................................................................21 DS50002653A-page 2 User Guide 2017 Microchip Technology Inc.