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grove: add grove temperature sensor support and example
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
parent
050d6553cd
commit
11ac453218
@ -1,8 +1,10 @@
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add_executable (compass compass.cxx)
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add_executable (groveled groveled.cxx)
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add_executable (grovetemp grovetemp.cxx)
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include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
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include_directories (${PROJECT_SOURCE_DIR}/src/grove)
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target_link_libraries (compass hmc5883l)
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target_link_libraries (groveled grove)
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target_link_libraries (grovetemp grove)
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41
examples/grovetemp.cxx
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41
examples/grovetemp.cxx
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@ -0,0 +1,41 @@
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/*
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* Author: Brendan Le Foll <brendan.le.foll@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <unistd.h>
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#include <iostream>
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#include "grove.h"
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int
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main(int argc, char **argv)
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{
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// Use i2c device 0 all the time
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upm::GroveTemp* s = new upm::GroveTemp(0);
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std::cout << s->name() << std::endl;
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for (int i=0; i < 10; i++) {
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std::cout << s->value() << std::endl;
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sleep(1);
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}
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return 0;
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}
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@ -22,10 +22,15 @@
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <iostream>
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#include "grove.h"
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#include "math.h"
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using namespace upm;
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//// GroveLed ////
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GroveLed::GroveLed(int pin)
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{
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maa_init();
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@ -56,3 +61,30 @@ maa_result_t GroveLed::off()
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{
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return write(0);
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}
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//// GroveTemp ////
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GroveTemp::GroveTemp(unsigned int pin)
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{
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maa_init();
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m_aio = maa_aio_init(pin);
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m_name = "Temperature Sensor";
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}
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GroveTemp::~GroveTemp()
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{
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maa_aio_close(m_aio);
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}
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int GroveTemp::value ()
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{
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int a = maa_aio_read_u16(m_aio);
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float r = (float)(1023-a)*10000/a;
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float t = 1/(logf(r/10000)/3975 + 1/298.15)-273.15;
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return (int) t;
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}
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float GroveTemp::raw_value()
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{
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return (float) maa_aio_read_u16(m_aio);
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}
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@ -24,6 +24,7 @@
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#pragma once
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#include <string>
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#include <maa/aio.h>
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#include <maa/gpio.h>
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namespace upm {
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@ -47,7 +48,17 @@ class GroveLed: public Grove {
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maa_result_t off();
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maa_result_t on();
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private:
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maa_gpio_context * m_gpio;
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maa_gpio_context* m_gpio;
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};
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class GroveTemp: public Grove {
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public:
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GroveTemp(unsigned int pin);
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~GroveTemp();
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float raw_value();
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int value();
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private:
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maa_aio_context* m_aio;
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};
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}
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