69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
// GrovePi Example for using the analog read.
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// http://dexterindustries.com/grovepi
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/*
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## License
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The MIT License (MIT)
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GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
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Copyright (C) 2017 Dexter Industries
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include "grovepi.h"
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using namespace GrovePi;
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// sudo g++ -Wall grovepi.cpp grovepi_analog_read.cpp -o grovepi_analog_read.out -> without grovepicpp package installed
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// sudo g++ -Wall -lgrovepicpp grovepi_analog_read.cpp -o grovepi_analog_read.out -> with grovepicpp package installed
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int main()
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{
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int pin = 0; // we use port A0
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int incoming; // variable to hold data for reading
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try
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{
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initGrovePi(); //initialize communication w/ GrovePi
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// set the pin mode for reading
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pinMode(pin, INPUT);
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// continuously read data
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while(true)
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{
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// read the data
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// receives a 10-bit value which maps to
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// 0V -> VCC, where VCC is the supply voltage of GrovePi
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incoming = analogRead(pin);
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printf("[pin %d][analog read = %d]\n", pin, incoming);
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// wait 10 ms so we don't overflow the terminal
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delay(10);
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}
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}
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catch (I2CError &error)
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{
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printf(error.detail());
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return -1;
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}
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return 0;
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}
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