MAXREFDES143#: DeepCover Embedded Security in IoT Authenticated Sensing & Notification
Dependencies: MaximInterface mbed
The MAXREFDES143# is an Internet of Things (IoT) embedded security reference design, built to protect an industrial sensing node by means of authentication and notification to a web server. The hardware includes a peripheral module representing a protected sensor node monitoring operating temperature and remaining life of a filter (simulated through ambient light sensing) and an mbed shield representing a controller node responsible for monitoring one or more sensor nodes. The design is hierarchical with each controller node communicating data from connected sensor nodes to a web server that maintains a centralized log and dispatches notifications as necessary. The mbed shield contains a Wi-Fi module, a DS2465 coprocessor with 1-Wire® master function, an LCD, LEDs, and pushbuttons. The protected sensor node contains a DS28E15 authenticator, a DS7505 temperature sensor, and a MAX44009 light sensor. The mbed shield communicates to a web server by the onboard Wi-Fi module and to the protected sensor node with I2C and 1-Wire. The MAXREFDES143# is equipped with a standard shield connector for immediate testing using an mbed board such as the MAX32600MBED#. The simplicity of this design enables rapid integration into any star-topology IoT network requiring the heightened security with low overhead provided by the SHA-256 symmetric-key algorithm.
More information about the MAXREFDES143# is available on the Maxim Integrated website.
MAX44009.hpp@32:0a09505a656d, 2017-11-06 (annotated)
- Committer:
- IanBenzMaxim
- Date:
- Mon Nov 06 17:34:13 2017 -0600
- Revision:
- 32:0a09505a656d
- Parent:
- 24:434330962308
Updated to use MaximInterface library.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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IanBenzMaxim | 1:e1c7c1c636af | 1 | /******************************************************************************* |
IanBenzMaxim | 1:e1c7c1c636af | 2 | * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved. |
IanBenzMaxim | 1:e1c7c1c636af | 3 | * |
IanBenzMaxim | 1:e1c7c1c636af | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
IanBenzMaxim | 1:e1c7c1c636af | 5 | * copy of this software and associated documentation files (the "Software"), |
IanBenzMaxim | 1:e1c7c1c636af | 6 | * to deal in the Software without restriction, including without limitation |
IanBenzMaxim | 1:e1c7c1c636af | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
IanBenzMaxim | 1:e1c7c1c636af | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
IanBenzMaxim | 1:e1c7c1c636af | 9 | * Software is furnished to do so, subject to the following conditions: |
IanBenzMaxim | 1:e1c7c1c636af | 10 | * |
IanBenzMaxim | 1:e1c7c1c636af | 11 | * The above copyright notice and this permission notice shall be included |
IanBenzMaxim | 1:e1c7c1c636af | 12 | * in all copies or substantial portions of the Software. |
IanBenzMaxim | 1:e1c7c1c636af | 13 | * |
IanBenzMaxim | 1:e1c7c1c636af | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
IanBenzMaxim | 1:e1c7c1c636af | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
IanBenzMaxim | 1:e1c7c1c636af | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
IanBenzMaxim | 1:e1c7c1c636af | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
IanBenzMaxim | 1:e1c7c1c636af | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
IanBenzMaxim | 1:e1c7c1c636af | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
IanBenzMaxim | 1:e1c7c1c636af | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
IanBenzMaxim | 1:e1c7c1c636af | 21 | * |
IanBenzMaxim | 1:e1c7c1c636af | 22 | * Except as contained in this notice, the name of Maxim Integrated |
IanBenzMaxim | 1:e1c7c1c636af | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
IanBenzMaxim | 1:e1c7c1c636af | 24 | * Products, Inc. Branding Policy. |
IanBenzMaxim | 1:e1c7c1c636af | 25 | * |
IanBenzMaxim | 1:e1c7c1c636af | 26 | * The mere transfer of this software does not imply any licenses |
IanBenzMaxim | 1:e1c7c1c636af | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
IanBenzMaxim | 1:e1c7c1c636af | 28 | * trademarks, maskwork rights, or any other form of intellectual |
IanBenzMaxim | 1:e1c7c1c636af | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
IanBenzMaxim | 1:e1c7c1c636af | 30 | * ownership rights. |
IanBenzMaxim | 32:0a09505a656d | 31 | *******************************************************************************/ |
IanBenzMaxim | 1:e1c7c1c636af | 32 | |
IanBenzMaxim | 24:434330962308 | 33 | #ifndef MAX44009_HPP |
IanBenzMaxim | 24:434330962308 | 34 | #define MAX44009_HPP |
IanBenzMaxim | 1:e1c7c1c636af | 35 | |
IanBenzMaxim | 6:b6bafd0a7013 | 36 | #include <stdint.h> |
IanBenzMaxim | 1:e1c7c1c636af | 37 | |
IanBenzMaxim | 1:e1c7c1c636af | 38 | namespace mbed { class I2C; } |
IanBenzMaxim | 1:e1c7c1c636af | 39 | |
IanBenzMaxim | 1:e1c7c1c636af | 40 | /// Interface to the MAX44009 optical light sensor. |
IanBenzMaxim | 32:0a09505a656d | 41 | class MAX44009 { |
IanBenzMaxim | 1:e1c7c1c636af | 42 | public: |
IanBenzMaxim | 32:0a09505a656d | 43 | enum Result { Success, Hardware_Failure }; |
IanBenzMaxim | 32:0a09505a656d | 44 | |
IanBenzMaxim | 1:e1c7c1c636af | 45 | /// @param I2C_interface A configured I2C interface to use for communication. |
IanBenzMaxim | 1:e1c7c1c636af | 46 | /// @param I2C_address Device bus address in mbed format. |
IanBenzMaxim | 6:b6bafd0a7013 | 47 | MAX44009(mbed::I2C & I2C_interface, uint8_t I2C_address); |
IanBenzMaxim | 32:0a09505a656d | 48 | |
IanBenzMaxim | 1:e1c7c1c636af | 49 | /// Read the current lux from the MAX44009. |
IanBenzMaxim | 1:e1c7c1c636af | 50 | /// @returns Success or Hardware_Failure. |
IanBenzMaxim | 1:e1c7c1c636af | 51 | Result read_current_lux(double & lux) const; |
IanBenzMaxim | 32:0a09505a656d | 52 | |
IanBenzMaxim | 1:e1c7c1c636af | 53 | private: |
IanBenzMaxim | 1:e1c7c1c636af | 54 | /// MAX44009 Register addresses. |
IanBenzMaxim | 32:0a09505a656d | 55 | enum Register { Lux_High_Byte_Reg = 0x03, Lux_Low_Byte_Reg = 0x04 }; |
IanBenzMaxim | 32:0a09505a656d | 56 | |
IanBenzMaxim | 1:e1c7c1c636af | 57 | mbed::I2C & m_I2C_interface; |
IanBenzMaxim | 6:b6bafd0a7013 | 58 | uint8_t m_I2C_address; |
IanBenzMaxim | 1:e1c7c1c636af | 59 | }; |
IanBenzMaxim | 1:e1c7c1c636af | 60 | |
IanBenzMaxim | 1:e1c7c1c636af | 61 | #endif |