From 980c96cb4085157603098214acac226dd0b4efb9 Mon Sep 17 00:00:00 2001
From: huskee <huskee@selene.hsgr.awmn>
Date: Tue, 12 Dec 2023 19:05:53 +0200
Subject: [PATCH] Add support for second thermocouple

---
 src/main.cpp | 70 ++++++++++++++++++++++++++++++----------------------
 1 file changed, 40 insertions(+), 30 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index aca552a..fcc3cbf 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,40 +1,50 @@
-#include <Arduino.h>
-#include <pinout.h>
-#include <SPI.h>
 #include <Adafruit_MAX31855.h>
+#include <Arduino.h>
+#include <SPI.h>
+#include <pinout.h>
 
-#define CS D8
-Adafruit_MAX31855 thermocouple(CS);
+#define CS_A D2
+#define CS_B D3
+Adafruit_MAX31855 thermocoupleA(CS_A);
+Adafruit_MAX31855 thermocoupleB(CS_B);
 void setup() {
-  Serial.begin(9600);
-  while(!Serial) delay(1);
-  SPI.begin();
+    Serial.begin(9600);
+    while (!Serial) delay(1);
+    SPI.begin();
 
-  Serial.println("MAX31855 test");
-  delay(500);
-  Serial.println("sensor init");
-  if (!thermocouple.begin()) {
-    Serial.println("sensor init error");
-    while(true) delay(10);
-  }
-
-  Serial.println("init done");
+    Serial.println("MAX31855 test");
+    delay(500);
+    Serial.println("sensor init");
+    if (!thermocoupleA.begin() | !thermocoupleB.begin()) {
+        Serial.println("sensor init error");
+        while (true) delay(10);
+    }
 
+    Serial.println("init done");
 }
 
 void loop() {
-   Serial.print(">internal:");
-   Serial.println(thermocouple.readInternal());
+    Serial.print(">internalA:");
+    Serial.println(thermocoupleA.readInternal());
+    Serial.print(">internalB:");
+    Serial.println(thermocoupleB.readInternal());
 
-   double c = thermocouple.readCelsius();
-   if (isnan(c)) {
-     uint8_t e = thermocouple.readError();
-     if (e & MAX31855_FAULT_OPEN) Serial.println("FAULT: thermocouple open");
-     if (e & MAX31855_FAULT_SHORT_GND) Serial.println("FAULT: thermocouple short to GND");
-     if (e & MAX31855_FAULT_SHORT_VCC) Serial.println("FAULT: thermocouple short to VCC");
-   } else {
-     Serial.print(">tempc:");
-     Serial.println(c);
-   }
-   delay(1000);
+    double cA = thermocoupleA.readCelsius();
+    double cB = thermocoupleB.readCelsius();
+    if (isnan(cA) | isnan(cB)) {
+        uint8_t eA = thermocoupleA.readError();
+        uint8_t eB = thermocoupleB.readError();
+        if (eA & MAX31855_FAULT_OPEN) Serial.println("FAULT: thermocouple A open");
+        if (eA & MAX31855_FAULT_SHORT_GND) Serial.println("FAULT: thermocouple A short to GND");
+        if (eA & MAX31855_FAULT_SHORT_VCC) Serial.println("FAULT: thermocouple A short to VCC");
+        if (eB & MAX31855_FAULT_OPEN) Serial.println("FAULT: thermocouple B open");
+        if (eB & MAX31855_FAULT_SHORT_GND) Serial.println("FAULT: thermocouple B short to GND");
+        if (eB & MAX31855_FAULT_SHORT_VCC) Serial.println("FAULT: thermocouple B short to VCC");
+    } else {
+        Serial.print(">tempcA:");
+        Serial.println(cA);
+        Serial.print(">tempcB:");
+        Serial.println(cB);
+    }
+    delay(1000);
 }
\ No newline at end of file