Diff: max30205_app.cpp

Revision:

13:fba77a5d0fa0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/max30205_app.cpp	Thu Jun 28 15:47:24 2018 +0300
@@ -0,0 +1,71 @@
+/*
+ * max30205_app.c
+ *
+ *  Created on: Jun 20, 2018
+ *      Author: Mahir.Ozturk
+ */
+#include <mbed.h>
+#include "max30205_app.h"
+#include "MAX30205.h"
+
+bool max30205_config(MAX30205 &temp_sensor){
+
+	int rc = 0;
+
+	MAX30205::Configuration_u temp_cfg;
+	temp_cfg.all = 0;
+	temp_cfg.bits.shutdown = 1;     // Shutdown mode
+	temp_cfg.bits.comp_int = 1;     // Interrupt mode
+	temp_cfg.bits.os_polarity = 0;  // Active low OS
+	temp_cfg.bits.fault_queue = 1;  // Two faults for OS condition
+	temp_cfg.bits.data_format = 0;  // Normal data format
+	temp_cfg.bits.timeout = 0;      // I2C timeout reset enabled
+	temp_cfg.bits.one_shot = 0;     // Start with one-shot = 0
+
+	rc = temp_sensor.writeConfiguration(temp_cfg);  // Write config to MAX30205
+
+	return rc;
+}
+
+void max30205_reader_task(struct max30205_reader_task_args *args)
+{
+	MAX30205 max30205_temp_sensor(args->i2cBus, 0x48);	/* New MAX30205 on i2cBus */
+
+	int rc = max30205_config(max30205_temp_sensor);   // Configure sensor, return 0 on success
+
+	MAX30205::Configuration_u temp_cfg;
+	uint16_t rawTemperatureRead;
+	float temperature;
+
+	temp_cfg.all = 0;
+
+	printf("Starting MAX30205 Temperature Demo Application...\r\n");
+
+	while (1) {
+		if (rc == 0) {
+			/* Send one-shot cmd to begin conversion */
+			temp_cfg.bits.one_shot = 1;
+			rc = max30205_temp_sensor.writeConfiguration(temp_cfg);
+
+			Thread::wait(50);
+
+			/* Read the temperature data */
+			rc = max30205_temp_sensor.readTemperature(rawTemperatureRead);
+
+			/* Convert temp data to Celsius */
+			temperature = max30205_temp_sensor.toCelsius(rawTemperatureRead);
+
+			bleGattAttrWrite(args->gatt, (uint8_t *)&temperature, sizeof(temperature));
+			printf("Temperature is %2.3f deg. C\r\n", temperature);
+
+			Thread::wait(args->notify_period_sec * 1000);
+
+		} else {
+			printf("Something went wrong, check the I2C bus and power connections...\r\n");
+
+			return;
+		}
+	}
+}
+
+