ecezo: initial implementation; C, C++; FTI + examples

Signed-off-by: Jon Trulson <jtrulson@ics.com>

examples/c/CMakeLists.txt

@@ -140,6 +140,7 @@ add_example (button_intr)
 add_example (my9221)
 add_example (ms5803)
 add_example (ims)
+add_example (ecezo)
 
 # Custom examples
 add_custom_example (nmea_gps_i2c-example-c nmea_gps_i2c.c nmea_gps)

examples/c/ecezo.c

@@ -0,0 +1,85 @@
+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2016 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 <signal.h>
+
+#include <upm_utilities.h>
+#include <ecezo.h>
+
+bool shouldRun = true;
+
+void sig_handler(int signo)
+{
+  if (signo == SIGINT)
+    shouldRun = false;
+}
+
+int main()
+{
+    signal(SIGINT, sig_handler);
+
+    //! [Interesting]
+
+    // Instantiate a ECEZO sensor on uart 0 at 9600 baud.
+    ecezo_context sensor = ecezo_uart_init(0, 9600);
+
+    // For I2C, assuming the device is configured for address 0x64 on
+    // I2C bus 0, you could use something like:
+    //
+    // ecezo_context sensor = ecezo_i2c_init(0, 0x64);
+
+    if (!sensor)
+    {
+        printf("ecezo_init() failed.\n");
+        return 1;
+    }
+
+    while (shouldRun)
+    {
+        // this will take about 1 second to complete
+        if (ecezo_update(sensor))
+        {
+            printf("ecezo_update() failed\n");
+        }
+        else
+        {
+            printf("EC %f uS/cm, TDS %f mg/L, Salinity %f PSS-78, SG %f\n",
+                   ecezo_get_ec(sensor),
+                   ecezo_get_tds(sensor),
+                   ecezo_get_salinity(sensor),
+                   ecezo_get_sg(sensor));
+        }
+
+        upm_delay(5);
+    }
+
+    //! [Interesting]
+
+    printf("Exiting\n");
+
+    ecezo_close(sensor);
+
+    return 0;
+}