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.
Diff: ESP8266.cpp
- Revision:
- 30:0784010d6975
- Parent:
- 29:590a7561318b
- Child:
- 32:0a09505a656d
--- a/ESP8266.cpp Thu Jan 26 16:55:23 2017 -0600 +++ b/ESP8266.cpp Thu Jan 26 18:00:02 2017 -0600 @@ -36,8 +36,6 @@ #include "Timer.h" #include "wait_api.h" -ESP8266* ESP8266::defaultInstance = NULL; - static inline void disableRecvData() { __disable_irq(); @@ -48,17 +46,6 @@ __enable_irq(); } -void ESP8266::setDefaultInstance(ESP8266 * const instance) -{ - if (instance != NULL) - defaultInstance = instance; -} - -ESP8266** ESP8266::getDefaultInstance() -{ - return &defaultInstance; -} - ESP8266::ESP8266(const PinName tx, const PinName rx, const PinName rst, const PinName CH_PD, const int baud, mbed::Serial * debugMsgIntf) : AT_intf(tx, rx), resetPin(rst), powerDownPin(CH_PD), debugMsg(debugMsgIntf), parseRecvReset(false) { @@ -70,15 +57,6 @@ resetPin = 1; // Power down device at startup due to high current demand setPowered(false); - - if (defaultInstance == NULL) - defaultInstance = this; -} - -ESP8266::~ESP8266() -{ - if (defaultInstance == this) - defaultInstance = NULL; } void ESP8266::reset()