flex: initial implementation

Implements the flex analog sensor.  See
http://bildr.org/2012/11/flex-sensor-arduino/
for wiring instructions.

Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>
This commit is contained in:
Zion Orent
2015-03-12 13:11:22 -04:00
committed by John Van Drasek
parent e3ba0d7b0a
commit 317ad35180
8 changed files with 264 additions and 0 deletions

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@ -103,6 +103,7 @@ add_executable (adafruitss-example adafruitss.cxx)
add_executable (adafruitms1438-example adafruitms1438.cxx)
add_executable (adafruitms1438-stepper-example adafruitms1438-stepper.cxx)
add_executable (hx711-example hx711.cxx)
add_executable (flex-example flex.cxx)
include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
include_directories (${PROJECT_SOURCE_DIR}/src/grove)
@ -186,6 +187,7 @@ include_directories (${PROJECT_SOURCE_DIR}/src/groveeldriver)
include_directories (${PROJECT_SOURCE_DIR}/src/adafruitss)
include_directories (${PROJECT_SOURCE_DIR}/src/adafruitms1438)
include_directories (${PROJECT_SOURCE_DIR}/src/hx711)
include_directories (${PROJECT_SOURCE_DIR}/src/flex)
target_link_libraries (hmc5883l-example hmc5883l ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (groveled-example grove ${CMAKE_THREAD_LIBS_INIT})
@ -290,3 +292,4 @@ target_link_libraries (adafruitss-example adafruitss ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (adafruitms1438-example adafruitms1438 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (adafruitms1438-stepper-example adafruitms1438 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (hx711-example hx711 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (flex-example flex ${CMAKE_THREAD_LIBS_INIT})

66
examples/c++/flex.cxx Normal file
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@ -0,0 +1,66 @@
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "flex.h"
using namespace std;
bool shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// The was tested with a Spectra Symbol flex sensor.
// We attached a 22K resistor to a breadboard,
// with 1 end attached to GND and the other connected to
// both the flex sensor and A0.
// The flex sensor was connected on 1 pin to the 22K resistor and A0
// and on the other pin to 5V.
// Instantiate a Flex sensor on analog pin A0
upm::Flex *flex = new upm::Flex(0);
while (shouldRun)
{
cout << "Flex value: " << flex->value() << endl;
sleep(1);
}
//! [Interesting]
cout << "Exiting" << endl;
delete flex;
return 0;
}