Added INA219 Power Monitoring Stuff

platformio.ini

@@ -26,4 +26,5 @@ framework = arduino
 lib_deps =
     smougenot/TM1637@0.0.0-alpha+sha.9486982048
     me-no-dev/ESP Async WebServer @ ^1.2.3
-    sstaub/Ticker @ ^4.2.0
+    sstaub/Ticker @ ^4.2.0
+    adafruit/Adafruit INA219 @ ^1.1.1

src/main.cpp

@@ -13,6 +13,8 @@
 #endif
 #include <ESPAsyncWebServer.h>
 #include <LittleFS.h>
+#include <Wire.h>
+#include <Adafruit_INA219.h>
 // local includes
 #include "defaults.h"
 
@@ -38,11 +40,14 @@ void SevenSeg_Output();
 void FactionTicker_callback();
 void serialOutTicker_callback();
 void inputGetterTicker_callback();
+void powerMonitorTicker_callback();
 
 TM1637Display disp_FAC_1(CLK, DIO_FAC_1_7SEG);
 TM1637Display disp_FAC_2(CLK, DIO_FAC_2_7SEG);
 TM1637Display disp_FAC_3(CLK, DIO_FAC_3_7SEG);
 
+Adafruit_INA219 ina219;
+
 WiFiEventHandler stationConnectedHandler;
 WiFiEventHandler stationDisconnectedHandler;
 
@@ -54,6 +59,7 @@ AsyncWebServer server(80);
 Ticker FactionTicker(FactionTicker_callback, 500, 0, MILLIS);
 Ticker SerialOutputTicker(serialOutTicker_callback, 5000, 0, MILLIS);
 Ticker InputGetterTicker(inputGetterTicker_callback, 500, 0, MILLIS);
+Ticker PowerMonitorTicker(powerMonitorTicker_callback, 5000, 0, MILLIS);
 
 Factions activeFaction = NONE;
 
@@ -276,6 +282,27 @@ void inputGetterTicker_callback()
     activeFaction = FACTION_3;
 }
 
+void powerMonitorTicker_callback()
+{
+  float shuntvoltage = 0;
+  float busvoltage = 0;
+  float current_mA = 0;
+  float loadvoltage = 0;
+  float power_mW = 0;
+
+  shuntvoltage = ina219.getShuntVoltage_mV();
+  busvoltage = ina219.getBusVoltage_V();
+  current_mA = ina219.getCurrent_mA();
+  power_mW = ina219.getPower_mW();
+  loadvoltage = busvoltage + (shuntvoltage / 1000);
+
+  Serial.printf("Bus Voltage: %f V\n", busvoltage);
+  Serial.printf("Shunt Voltage: %f mV\n", shuntvoltage);
+  Serial.printf("Load Voltage: %f V\n", loadvoltage);
+  Serial.printf("Current: %f mA\n", current_mA);
+  Serial.printf("Power: %f mW\n", power_mW);
+}
+
 void setup()
 {
   pinMode(DIO_FAC_1_TRG, INPUT_PULLUP);
@@ -285,6 +312,11 @@ void setup()
   Serial.begin(9600);
   Serial.print("\n\n\n");
 
+  if (ina219.begin())
+    PowerMonitorTicker.start();
+  else
+    Serial.println("Failed to find INA219 chip");
+
   LittleFS.begin();
 
   WiFi.persistent(false);
@@ -310,6 +342,7 @@ void loop()
   FactionTicker.update();
   SerialOutputTicker.update();
   InputGetterTicker.update();
+  PowerMonitorTicker.update();
 
 #ifdef CAPTIVE
   dnsServer.processNextRequest();