ext temp

Author: gbr1

src/Arduino_ScienceKitCarrier.cpp

@@ -651,6 +651,52 @@ bool ScienceKitCarrier::getUltrasonicIsConnected(){
   return ultrasonic_is_connected;
 }
 
+/********************************************************************/
+/*                    External Temperature Probe                    */
+/********************************************************************/
+
+int ScienceKitCarrier::beginExternalTemperature(){
+
+}
+
+void ScienceKitCarrier::updateExternalTemperature(){
+  float temperature;
+  DSTherm drv(ow);
+  drv.convertTempAll(DSTherm::MAX_CONV_TIME, false);    
+
+  static Placeholder<DSTherm::Scratchpad> scrpd;
+
+  OneWireNg::ErrorCode ec = drv.readScratchpadSingle(scrpd);
+  if (ec == OneWireNg::EC_SUCCESS) {
+    if (scrpd->getAddr()!=15){
+      external_temperature_is_connected=false;
+    }
+    else{
+      long temp = scrpd->getTemp();
+      int sign=1;
+      if (temp < 0) {
+        temp = -temp;
+        sign=-1;
+      }
+      temperature = (temp/1000)+(temp%1000)*0.001;
+      external_temperature = sign*temperature;
+      external_temperature_is_connected=true;
+    }   
+  }
+}
+
+float ScienceKitCarrier::getExternalTemperature(){
+
+}
+
+bool ScienceKitCarrier::getExternalTemperatureIsConnected(){
+
+}
+
+void ScienceKitCarrier::threadExternalTemperature(){
+
+}
+
 
 
 

src/Arduino_ScienceKitCarrier.h

@@ -31,6 +31,11 @@
 #include "Arduino_BMI270_BMM150.h"
 #include "Arduino_GroveI2C_Ultrasonic.h"
 
+#include "OneWireNg_CurrentPlatform.h"
+#include "drivers/DSTherm.h"
+#include "utils/Placeholder.h"
+
+
 #include "./utils/function_generator_controller.h"
 #include "./utils/Arduino_ScienceKitCarrier_definitions.h"
 
@@ -69,8 +74,12 @@ class ScienceKitCarrier{
     bool ultrasonic_is_connected;
 
 
+    bool external_temperature_is_connected;
+    float external_temperature;
+
     rtos::Thread * thread_activity_led;
     rtos::Thread * thread_update_bme;
+    rtos::Thread * thread_external_temperature;
 
     uint8_t activity_led_state;
 
@@ -181,6 +190,15 @@ class ScienceKitCarrier{
     float getTravelTime();      // microseconds
     bool getUltrasonicIsConnected();
 
+
+
+    /* External temperature probe - dallas */
+    int beginExternalTemperature();
+    void updateExternalTemperature();
+    float getExternalTemperature();     // celsius
+    bool getExternalTemperatureIsConnected();
+    void threadExternalTemperature();
+
 };
 
 

src/utils/Arduino_ScienceKitCarrier_definitions.h

@@ -44,6 +44,9 @@ const uint16_t MAXIMUM_AMPS{1};            // 1A
 // Bme688
 #define BME688_CS 10
 
+// External temperature
+#define OW_PIN         p26
+
 // Errors
 #define ERR_BEGIN_APDS -3
 #define ERR_BEGIN_INA -4