January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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Sensor to controller
In many of the preceding examples for sensing components, the signal will require amplification, filtering, and calibration before going anywhere. Typically, the hardware will need an analog-to-digital converter of some resolution. The following is a simple 24-bit ADC that outputs a 5V signal:
Wheatstone Bridge: connected to AD7730 analog to digital converter as input to a microcontroller or system on a chip
The output can then be raw pulse-modulated data, or a serial interface such as I2C, SPI, or UART to a microcontroller or digital signal processor. A good example of this in a real system is the Texas Instruments infrared ...
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