Merge pull request #284 from ngavars/main

Telemetry: INA3221 current sensor support for Promicro

.gitignore

@@ -6,3 +6,5 @@
 .vscode/ipch
 out/
 .direnv/
+.DS_Store
+.vscode/settings.json

src/helpers/SensorManager.h

@@ -2,11 +2,18 @@
 
 #include <CayenneLPP.h>
 
-#define TELEM_PERM_BASE       0x01   // 'base' permission includes battery
+#define TELEM_PERM_BASE         0x01   // 'base' permission includes battery
-#define TELEM_PERM_LOCATION   0x02
+#define TELEM_PERM_LOCATION     0x02
+#define TELEM_PERM_ENVIRONMENT  0x04   // permission to access environment sensors
 
 #define TELEM_CHANNEL_SELF   1   // LPP data channel for 'self' device
 
+#define TELEM_INA3221_ADDRESS 0x42      // INA3221 3 channel current, voltage, power sensor I2C address
+#define TELEM_INA3221_SHUNT_VALUE 0.100 // most variants will have a 0.1 ohm shunts
+#define TELEM_INA3221_SETTING_CH1 "INA3221 Channel 1"
+#define TELEM_INA3221_SETTING_CH2 "INA3221 Channel 2"
+#define TELEM_INA3221_SETTING_CH3 "INA3221 Channel 3"
+
 class SensorManager {
 public:
   double node_lat, node_lon;  // modify these, if you want to affect Advert location

variants/promicro/platformio.ini

@@ -36,6 +36,7 @@ build_flags =
 ;  -D MESH_DEBUG=1
 lib_deps = ${Faketec.lib_deps}
   adafruit/RTClib @ ^2.1.3
+  robtillaart/INA3221 @ ^0.4.1
   
 [env:Faketec_room_server]
 extends = Faketec

variants/promicro/target.cpp

@@ -10,7 +10,7 @@ WRAPPER_CLASS radio_driver(radio, board);
 
 VolatileRTCClock fallback_clock;
 AutoDiscoverRTCClock rtc_clock(fallback_clock);
-SensorManager sensors;
+PromicroSensorManager sensors;
 
 #ifndef LORA_CR
   #define LORA_CR      5
@@ -74,3 +74,85 @@ mesh::LocalIdentity radio_new_identity() {
   RadioNoiseListener rng(radio);
   return mesh::LocalIdentity(&rng);  // create new random identity
 }
+
+INA3221 INA_3221(TELEM_INA3221_ADDRESS, &Wire);
+
+bool PromicroSensorManager::begin() {
+  if (INA_3221.begin() ) {
+    Serial.print("Found INA3221 at address ");
+    Serial.print(INA_3221.getAddress());
+    Serial.println();
+    Serial.print(INA_3221.getDieID(), HEX);
+    Serial.print(INA_3221.getManufacturerID(), HEX);
+    Serial.print(INA_3221.getConfiguration(), HEX);
+    Serial.println();
+
+    for(int i = 0; i < 3; i++) {
+      INA_3221.setShuntR(i, TELEM_INA3221_SHUNT_VALUE);
+    }
+    INA3221initialized = true;
+  }
+  else {
+    INA3221initialized = false;
+    Serial.print("INA3221 was not found at I2C address ");
+    Serial.print(TELEM_INA3221_ADDRESS, HEX);
+    Serial.println();
+  }
+  return true;
+}
+
+bool PromicroSensorManager::querySensors(uint8_t requester_permissions, CayenneLPP& telemetry) {
+  if (requester_permissions && TELEM_PERM_ENVIRONMENT) {
+    if (INA3221initialized) {
+      for(int i = 0; i < 3; i++) {
+        // add only enabled INA3221 channels to telemetry
+        if (INA3221_CHANNEL_ENABLED[i]) {
+          telemetry.addVoltage(INA3221_CHANNELS[i], INA_3221.getBusVoltage(i));
+          telemetry.addCurrent(INA3221_CHANNELS[i], INA_3221.getCurrent(i));
+          telemetry.addPower(INA3221_CHANNELS[i], INA_3221.getPower(i));
+        }
+      }
+    }
+  }
+
+  return true;
+}
+
+int PromicroSensorManager::getNumSettings() const {
+  return NUM_SENSOR_SETTINGS;
+}
+
+const char* PromicroSensorManager::getSettingName(int i) const {
+  if (i >= 0 && i < NUM_SENSOR_SETTINGS) {
+    return INA3221_CHANNEL_NAMES[i];
+  }
+  return NULL;
+}
+
+const char* PromicroSensorManager::getSettingValue(int i) const {
+  if (i >= 0 && i < NUM_SENSOR_SETTINGS) {
+    return INA3221_CHANNEL_ENABLED[i] ? "1" : "0";
+  }
+  return NULL;
+}
+
+bool PromicroSensorManager::setSettingValue(const char* name, const char* value) {
+  for (int i = 0; i < NUM_SENSOR_SETTINGS; i++) {
+    if (strcmp(name, INA3221_CHANNEL_NAMES[i]) == 0) {
+      int channelEnabled = INA_3221.getEnableChannel(i);
+      if (strcmp(value, "1") == 0) {
+        INA3221_CHANNEL_ENABLED[i] = true;
+        if (!channelEnabled) {
+          INA_3221.enableChannel(i);
+        }
+      } else {
+        INA3221_CHANNEL_ENABLED[i] = false;
+        if (channelEnabled) {
+          INA_3221.disableChannel(i);
+        }
+      }
+      return true;
+    }
+  }
+  return false;
+}

variants/promicro/target.h

@@ -8,14 +8,39 @@
 #include <helpers/CustomLLCC68Wrapper.h>
 #include <helpers/AutoDiscoverRTCClock.h>
 #include <helpers/SensorManager.h>
+#include <INA3221.h>
+
+#define NUM_SENSOR_SETTINGS 3
 
 extern PromicroBoard board;
 extern WRAPPER_CLASS radio_driver;
 extern AutoDiscoverRTCClock rtc_clock;
-extern SensorManager sensors;
+
 
 bool radio_init();
 uint32_t radio_get_rng_seed();
 void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
 void radio_set_tx_power(uint8_t dbm);
 mesh::LocalIdentity radio_new_identity();
+
+
+class PromicroSensorManager: public SensorManager {
+  bool INA3221initialized = false;
+
+  // INA3221 channels in telemetry
+  int INA3221_CHANNELS[NUM_SENSOR_SETTINGS] = {TELEM_CHANNEL_SELF + 1, TELEM_CHANNEL_SELF + 2, TELEM_CHANNEL_SELF+ 3};
+  char * INA3221_CHANNEL_NAMES[NUM_SENSOR_SETTINGS] = { TELEM_INA3221_SETTING_CH1, TELEM_INA3221_SETTING_CH2, TELEM_INA3221_SETTING_CH3};
+  bool INA3221_CHANNEL_ENABLED[NUM_SENSOR_SETTINGS] = {true, true, true};
+  
+public:
+  PromicroSensorManager(){};
+  bool begin() override;
+  bool querySensors(uint8_t requester_permissions, CayenneLPP& telemetry) override;
+  int getNumSettings() const override;
+  const char* getSettingName(int i) const override;
+  const char* getSettingValue(int i) const override;
+  bool setSettingValue(const char* name, const char* value) override;
+};
+
+
+extern PromicroSensorManager sensors;