Yolande Poirier writes, "In Part 1 of his series on using Java ME 8 to control Internet of Things (IOT) devices--such as LEDs, relays, LCDs, sensors, motors, and switches--connected to a Raspberry Pi, Jose Cruz explained how to work with devices that use a simple general-purpose input/output (GPIO) interface. GPIO devices can be used as either a digital input or digital output, can be disabled or enabled, and can be used to drive interrupt lines. Part 1 explored how to connect and control a flame sensor, a movement sensor, and a motion sensor.
In Part 2 of his series, Jose describes how to connect and control devices that use an inter-integrated circuit bus (I2C) interface, which is a multimaster, multislave, single-ended serial computer bus that enables you to read or write data beyond just changes in logic states..."
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