Maxim Integrated / Mbed 2 deprecated DeepCover Embedded Security in IoT

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@24:434330962308, 2016-10-19 (annotated)

Committer:
IanBenzMaxim
Date:
Wed Oct 19 13:23:41 2016 -0500
Revision:
24:434330962308
Parent:
6:b6bafd0a7013
Child:
32:0a09505a656d
Fixed include guards.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
IanBenzMaxim 1:e1c7c1c636af 1 /*******************************************************************************
IanBenzMaxim 1:e1c7c1c636af 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
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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.
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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
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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
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IanBenzMaxim 1:e1c7c1c636af 30 * ownership rights.
IanBenzMaxim 1:e1c7c1c636af 31 *******************************************************************************
IanBenzMaxim 1:e1c7c1c636af 32 */
IanBenzMaxim 1:e1c7c1c636af 33
IanBenzMaxim 24:434330962308 34 #ifndef MAX44009_HPP
IanBenzMaxim 24:434330962308 35 #define MAX44009_HPP
IanBenzMaxim 1:e1c7c1c636af 36
IanBenzMaxim 6:b6bafd0a7013 37 #include <stdint.h>
IanBenzMaxim 1:e1c7c1c636af 38
IanBenzMaxim 1:e1c7c1c636af 39 namespace mbed { class I2C; }
IanBenzMaxim 1:e1c7c1c636af 40
IanBenzMaxim 1:e1c7c1c636af 41 /// Interface to the MAX44009 optical light sensor.
IanBenzMaxim 1:e1c7c1c636af 42 class MAX44009
IanBenzMaxim 1:e1c7c1c636af 43 {
IanBenzMaxim 1:e1c7c1c636af 44 public:
IanBenzMaxim 1:e1c7c1c636af 45 enum Result
IanBenzMaxim 1:e1c7c1c636af 46 {
IanBenzMaxim 1:e1c7c1c636af 47 Success,
IanBenzMaxim 1:e1c7c1c636af 48 Hardware_Failure
IanBenzMaxim 1:e1c7c1c636af 49 };
IanBenzMaxim 1:e1c7c1c636af 50
IanBenzMaxim 1:e1c7c1c636af 51 /// @param I2C_interface A configured I2C interface to use for communication.
IanBenzMaxim 1:e1c7c1c636af 52 /// @param I2C_address Device bus address in mbed format.
IanBenzMaxim 6:b6bafd0a7013 53 MAX44009(mbed::I2C & I2C_interface, uint8_t I2C_address);
IanBenzMaxim 1:e1c7c1c636af 54
IanBenzMaxim 1:e1c7c1c636af 55 /// Read the current lux from the MAX44009.
IanBenzMaxim 1:e1c7c1c636af 56 /// @returns Success or Hardware_Failure.
IanBenzMaxim 1:e1c7c1c636af 57 Result read_current_lux(double & lux) const;
IanBenzMaxim 1:e1c7c1c636af 58
IanBenzMaxim 1:e1c7c1c636af 59 private:
IanBenzMaxim 1:e1c7c1c636af 60 /// MAX44009 Register addresses.
IanBenzMaxim 1:e1c7c1c636af 61 enum Register
IanBenzMaxim 1:e1c7c1c636af 62 {
IanBenzMaxim 1:e1c7c1c636af 63 Lux_High_Byte_Reg = 0x03,
IanBenzMaxim 1:e1c7c1c636af 64 Lux_Low_Byte_Reg = 0x04
IanBenzMaxim 1:e1c7c1c636af 65 };
IanBenzMaxim 1:e1c7c1c636af 66
IanBenzMaxim 1:e1c7c1c636af 67 mbed::I2C & m_I2C_interface;
IanBenzMaxim 6:b6bafd0a7013 68 uint8_t m_I2C_address;
IanBenzMaxim 1:e1c7c1c636af 69 };
IanBenzMaxim 1:e1c7c1c636af 70
IanBenzMaxim 1:e1c7c1c636af 71 #endif