BH1792: Add examples for all languages

- Examples for C/C++/Python/Java/JavaScript
- Add build line for java BH1792_Example

Signed-off-by: Assam Boudjelthia <assam.boudjelthia@fi.rohmeurope.com>

examples/c++/bh1792.cxx

@@ -0,0 +1,79 @@
+/*
+* The MIT License (MIT)
+*
+* Author: Assam Boudjelthia
+* Copyright (c) 2018 Rohm Semiconductor.
+*
+* 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 <iostream>
+#include <signal.h>
+#include  <sys/time.h>
+#include "bh1792.hpp"
+#include "upm_utilities.h"
+
+bool isStopped;
+upm::BH1792 dev;
+
+void signal_int_handler(int signo)
+{
+    if (signo == SIGINT)
+        isStopped = true;
+}
+
+void PrintData(void *args)
+{
+	std::vector<std::vector<int>> fifo;
+	struct timespec now;
+
+	clock_gettime(CLOCK_MONOTONIC_RAW, &now);
+	try {
+		fifo = dev.GetFifoData();
+
+		std::cout << "\nHeart beat sensor FIFO data:" << std::endl;
+		for(int i = 0; i < 32; i++)
+			std::cout << i << ": off: " << fifo.at(i).at(0) << ", on: " <<
+						fifo.at(i).at(1) << std::endl;
+
+		std::cout << "timestamp " << now.tv_sec << " sec, " << now.tv_nsec <<
+					" nsec" << std::endl;
+	} catch (std::exception& e) {
+		std::cout << "Failed to read FIFO data" << std::endl;
+		throw;
+	}
+}
+
+int main(int argc, char **argv)
+{
+	float measTime;
+
+	signal(SIGINT, signal_int_handler);
+	dev.SoftReset();
+	dev.EnableSyncMode(256, 32);
+	std::cout << "Installing ISR" << std::endl;
+	dev.InstallISR(MRAA_GPIO_EDGE_FALLING, 33, &PrintData, NULL);
+	measTime = dev.GetMeasurementTimeMS();
+	dev.StartMeasurement();
+
+	while(!isStopped) {
+		usleep(measTime * 1000);
+	}
+
+	return 0;
+}

examples/c/bh1792.c

@@ -0,0 +1,86 @@
+/*
+* The MIT License (MIT)
+*
+* Author: Assam Boudjelthia
+* Copyright (c) 2018 Rohm Semiconductor.
+*
+* 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 <stdio.h>
+#include <signal.h>
+#include "bh1792.h"
+#include  <sys/time.h>
+#include "upm_utilities.h"
+
+bool isStopped;
+#define SENSOR_ADDR 0x5b
+#define I2C_BUS 0
+
+void signal_int_handler(int signo)
+{
+    if (signo == SIGINT)
+        isStopped = true;
+}
+
+void print_data(void *args)
+{
+	bh1792_context dev = (bh1792_context)args;
+	uint16_t led_on[32], led_off[32];
+	struct timespec now;
+
+	clock_gettime(CLOCK_MONOTONIC_RAW, &now);
+
+	if(bh1792_get_fifo_data(dev, led_off, led_on) == UPM_SUCCESS) {
+		printf("\nFIFO data:\n");
+		for(int i = 0; i < 32; i++)
+			printf("%d: off: %d, on: %d\n", i, led_off[i], led_on[i]);
+			
+		printf("timestamp %ld sec, %ld nsec\n", now.tv_sec, now.tv_nsec);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	float meas_time;
+
+	signal(SIGINT, signal_int_handler);
+
+	bh1792_context dev = bh1792_init(I2C_BUS, SENSOR_ADDR);
+	if (!dev) {
+        printf("bh1792_init() failed.\n");
+        return -1;
+    }
+
+	printf("Software reset\n");
+	bh1792_soft_reset(dev);
+
+	bh1792_enable_sync_mode(dev, 256, 32);
+	bh1792_install_isr(dev, MRAA_GPIO_EDGE_FALLING, 33, &print_data, dev);
+	bh1792_get_meas_time_ms(dev, &meas_time);
+	bh1792_start_measurement(dev);
+
+	printf("Heart beat sensor data\n");
+
+	while(!isStopped) {
+		usleep(meas_time * 1000);
+	}
+
+	bh1792_close(dev);
+	return 0;
+}

examples/java/BH1792_Example.java

@@ -0,0 +1,67 @@
+/*
+* The MIT License (MIT)
+*
+* Author: Assam Boudjelthia
+* Copyright (c) 2018 Rohm Semiconductor.
+*
+* 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.
+*/
+
+public class BH1792_Example {
+
+    public static void main(String[] args) throws InterruptedException {
+        int sampleCounter = 20;
+        float waitTime;
+        upm_bh1792.BH1792 bh1792;
+
+        bh1792 = new upm_bh1792.BH1792();
+        BH1792ISR callback = new BH1792ISR(bh1792);
+        
+        bh1792.SoftReset();
+        bh1792.EnableSyncMode(256, 32);
+        
+        bh1792.InstallISR(33, callback);
+        
+        waitTime = bh1792.GetMeasurementTimeMS();
+        bh1792.StartMeasurement();
+
+        System.out.println("Heart rate sensor readings");
+        while (true) {
+            Thread.sleep((long) waitTime);
+        }
+    }
+}
+
+class BH1792ISR implements Runnable {
+    
+    upm_bh1792.intVector2D result;
+    upm_bh1792.BH1792 bh1792;
+    
+    public BH1792ISR(upm_bh1792.BH1792 bh1792) {
+        super();
+        this.bh1792 = bh1792;
+    }
+    
+    public void run() {
+        result = this.bh1792.GetFifoData();
+        for(int i = 0; i < 32; i++)
+            System.out.println(i + ": off: " + result.get(i).get(0) +
+                                ", on: " + result.get(i).get(1));
+        System.out.println("Timestamp: " + System.nanoTime() + " nsec\n");
+    }
+}

examples/java/CMakeLists.txt

@@ -75,6 +75,7 @@ add_example(AM2315_Example am2315)
 add_example(APA102_Example apa102)
 add_example(Apds9002_Example apds9002)
 add_example(BH1750_Example bh1750)
+add_example(BH1792_Example bh1792)
 add_example(BISS0001_Example biss0001)
 add_example(BMA250E_Example bma250e)
 add_example(BMC150_Example bmx055)

examples/javascript/bh1792.js

@@ -0,0 +1,50 @@
+/*
+* The MIT License (MIT)
+*
+* Author: Assam Boudjelthia
+* Copyright (c) 2018 Rohm Semiconductor.
+*
+* 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.
+*/
+
+var bh1792 = require("/usr/include/nodejs/lib/node_modules/jsupm_bh1792");
+
+var bh1792_sensor = new bh1792.BH1792();
+
+bh1792_sensor.SoftReset();
+bh1792_sensor.EnableSyncMode(256, 32);
+bh1792_sensor.StartMeasurement();
+
+var waitTime = bh1792_sensor.GetMeasurementTimeMS();
+var counter = 10;
+console.log("Heart beat sensor readings: ");
+var interval = setInterval(function() {
+	data = bh1792_sensor.GetGreenData();
+	console.log("off: " + data.get(0) + ", on: " + data.get(1) +
+				", timestamp: " + Date.now() + " msec");
+	counter--;
+	if (counter == 0) {
+		clearInterval(interval);
+	}
+}, waitTime);
+
+process.on("SIGINT", function() {
+	clearInterval(interval);
+	console.log("Exiting...");
+	process.exit(0);
+});

examples/python/bh1792.py

@@ -0,0 +1,58 @@
+# The MIT License (MIT)
+#
+# Author: Assam Boudjelthia
+# Copyright (c) 2018 Rohm Semiconductor.
+#
+# 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.
+
+import time, datetime
+import sys
+import signal
+import atexit
+from upm import pyupm_bh1792
+
+def main():
+	bh1792_sensor = pyupm_bh1792.BH1792()
+	bh1792_sensor.SoftReset()
+	bh1792_sensor.EnableSyncMode(256, 32)
+	bh1792_sensor.StartMeasurement()
+
+	# Prevent stack printing on CTRL^C
+	def SIGINTHandler(signum, frame):
+		raise SystemExit
+
+	def exitHandler():
+		print("Exiting")
+		sys.exit(0)
+
+	atexit.register(exitHandler)
+	signal.signal(signal.SIGINT, SIGINTHandler)
+
+	sampleCounter = 10
+	waitTime = bh1792_sensor.GetMeasurementTimeMS()
+	
+	print("Heart beat sensor readings: ")
+	while sampleCounter > 0:
+		[off, on] = bh1792_sensor.GetGreenData()
+		print ("off: %d, on: %d, timestamp: %d msec" % (off, on, time.time() * 1000))
+		time.sleep(waitTime / 1000.0)
+		sampleCounter -= 1
+
+
+if __name__ == '__main__':
+    main()