ICI, Intelligent C-programmable I/O (i:zi)

The Intelligent C-programmable I/O enables network designers to use event handlers to create their own application on a RIIoT leaf node (RC188x-SPR) using less than 100 lines of high-level C code.

The event handler reacts to a defined trigger and the performs the actions defined by the user. The user uses high-level C to define the trigger and the actions: an “if-this-than-that” topology. All code is hosted on the RF module.

This high-level abstraction level in the ICI allows designers with no understanding of a real time operating system — or knowledge of the chip-set architecture — to create an intelligent network node. For example, intelligent node coding can include:

  • Initiating transmit to base-station based on local triggers
  • Interfacing with any sensor or actuator, including complex bus interfaces
  • Initiating complex event-driven control and/or transmit functions
  • Processing of local signals
  • Supporting advanced security measures
  • Logging local data
  • Creating local alarms
  • Supporting an advanced RF protocol

An ICI code example

Example code to setup an application with I2C, GPIO, and periodic timer.

void Setup()
{
// I2C clock speed to the SHT35 sensor
I2C.init(I2C_400KHZ);
// setup the button GPIO and event detection
GPIO.setDirection(GPIO_0, PIN_INPUT);
GPIO.setHandler(GPIO_0, FALLING_EDGE, sendData);
// setup periodic timer events
readSensorTimer = Timer.create(PERIODIC, 30 * SECOND, readSensor);
Timer.start(readSensorTimer);
}

If you are interested in the RIIoT Network solution that includes the ICI, please click here.

If you want to know more about the RC188x-SPR that includes the ICI, please click here.

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