Modified Arduino MKRTHERM to support mbed

Modified ArduiniMKRTHERM to support mbed structure and added j_probe conversion factor to read J probe thermocouples

Author: Rocketct

examples/Thermocouples/Thermocouples.ino

@@ -0,0 +1,68 @@
+/*
+  Automation Carrier - Thermocouples Read Sensors
+
+  This example reads the temperatures measured by the thermocouples
+  connected to the Automation Carrier's temp probe inputs and prints
+  them to the Serial Monitor once a second.
+
+  The circuit:
+   - Portenta H7
+   - Automation Carrier
+   - Two K Type thermocouple temperature sensors connected to
+      TEMP PROBES CH0 and CH1 on the Automation Carrier
+   - A J Type thermocouple temperature sensor connected to
+     TEMP PROBES CH3 on the Automation Carrier
+
+
+  created 25 August 2020
+  by Silvio Navaretti
+  modified 28 September 2020
+  by  Riccardo Rizzo
+  This example code is in the public domain.
+*/
+
+#include <AutomationCarrier.h>
+
+using namespace automation;
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("Thermocouples");
+  temp_probes.resetTH();
+  temp_probes.tc.begin();
+}
+
+void loop() {
+  // Enables Thermocouples chip select
+  // and runs Channels readings
+  temp_probes.enableTC();
+
+  temp_probes.selectChannel(0);
+  Serial.print("Reference temperature ch0: ");
+  Serial.print(temp_probes.tc.readReferenceTemperature());
+  Serial.println(" °C");
+  Serial.print("Temperature ch0: ");
+  Serial.print(temp_probes.tc.readTemperature());
+  Serial.println(" °C");
+  
+  temp_probes.selectChannel(1);
+  Serial.print("Reference temperature ch1: ");
+  Serial.print(temp_probes.tc.readReferenceTemperature());
+  Serial.println(" °C");
+
+  Serial.print("Temperature ch1: ");
+  Serial.print(temp_probes.tc.readTemperature(PROBE_J));
+  Serial.println(" °C");
+
+  temp_probes.selectChannel(2);
+  Serial.print("Reference temperature ch2: ");
+  Serial.print(temp_probes.tc.readReferenceTemperature());
+  Serial.println(" °C");
+
+  Serial.print("Temperature ch2: ");
+  Serial.print(temp_probes.tc.readTemperature());
+  Serial.println(" °C");
+
+  Serial.println();
+  delay(1000);
+}

examples/ThermocouplesReadSensors/ThermocouplesReadSensors.ino

@@ -2,7 +2,7 @@
 #define __AUTOMATION_CARRIER_H__
 
 #include "utility/Adafruit_MAX31865/Adafruit_MAX31865.h"
-#include "utility/Arduino_MKRTHERM/src/MKRTHERM.h"
+#include "utility/THERMOCOUPLE/MAX31855.h"
 #include "utility/RS485/RS485.h"
 #include "utility/QEI/QEI.h"
 #include "utility/ioexpander/TCA6424A.h"
@@ -26,9 +26,17 @@ class RTDClass {
 			ch_sel[i] = (i == channel ? 1 : 0);
 		}
 	}
+	void enableTC() {
+		cs_tc = 1;
+		cs_rtd = 0;
+	}
+	void enableRTD() {
+		cs_tc = 0;
+		cs_rtd = 1;
+	}
 
-	Adafruit_MAX31865 rtd = Adafruit_MAX31865(cs_rtd);
-	THERMClass t = THERMClass(cs_tc);
+	Adafruit_MAX31865 rtd = Adafruit_MAX31865(PA_6);
+	MAX31855Class tc = MAX31855Class(PI_0);
 
 private:
 	mbed::DigitalOut ch_sel[3] = { mbed::DigitalOut(PA_0), mbed::DigitalOut(PI_4), mbed::DigitalOut(PG_10) };