Diff: main.cpp

Revision:

1:390b13287bb7

Parent:

0:921ceae3cd78

--- a/main.cpp	Mon Jul 03 16:27:47 2017 +0000
+++ b/main.cpp	Fri Nov 10 17:31:58 2017 +0000
@@ -34,11 +34,67 @@
     I2C i2C(I2C_SDA, I2C_SCL);
     BatteryGaugeBq35100 gauge;
     int32_t reading;
+    uint32_t capacity;
     bool stop = false;
 
     printf ("Starting up...\n");
-    if (gauge.init(&i2C)) {        
-        printf ("BQ35100 battery gauge chip is initialised.\n");
+    if (gauge.init(&i2C) && gauge.setDesignCapacity(6500)) {        
+        printf ("BQ35100 battery gauge chip is initialised assuming a 6500 mAh battery.\n");
+        while (!stop) {
+            if (!gauge.isGaugeEnabled()) {
+                gauge.enableGauge();
+            }
+            if (gauge.isGaugeEnabled()) {
+                // All is good, gauging is enabled, take a few readings
+                ledGreen = 0;
+                ledRed = 1;
+                
+                if (gauge.getRemainingPercentage(&reading)) {
+                    printf("Remaining battery percentage: %d%%.\n", (int) reading);
+                } else {
+                    ledGreen = 1;
+                    ledRed = 0;
+                    wait_ms(1000);
+                }
+                
+                if (gauge.getRemainingCapacity(&capacity)) {
+                    printf("Remaining battery capacity: %.3f Ah.\n", ((float) capacity) / 1000);
+                } else {
+                    ledGreen = 1;
+                    ledRed = 0;
+                    wait_ms(1000);
+                }
+                
+                if (gauge.getVoltage(&reading)) {
+                    printf("Battery voltage: %.3f V.\n", ((float) reading) / 1000);
+                } else {
+                    ledGreen = 1;
+                    ledRed = 0;
+                    wait_ms(1000);
+                }
+                
+                if (gauge.getCurrent(&reading)) {
+                    printf("Current drawn from battery: %.3f A.\n", ((float) reading) / 1000);
+                } else {
+                    ledGreen = 1;
+                    ledRed = 0;
+                    wait_ms(1000);
+                }
+                
+                if (gauge.getTemperature(&reading)) {
+                    printf("BQ27441 chip temperature: %d C.\n", (int) reading);
+                } else {
+                    ledGreen = 1;
+                    ledRed = 0;
+                    wait_ms(1000);
+                }
+                
+            } else {
+                printf("Battery gauging could not be enabled.\n");
+                stop = true;
+            }
+            wait_ms(5000);
+        }
     }
     
     ledGreen = 1;