From 800735851467e61434c0f5ccd6004c90d24ca415 Mon Sep 17 00:00:00 2001
From: Stefan Brand <seiichiro@seiichiro0185.org>
Date: Tue, 9 Feb 2021 18:06:37 +0100
Subject: [PATCH] Disable Autocalibration for MH-Z19C

---
 lib/MHZ19C/MHZ19C.cpp | 8 ++++++++
 lib/MHZ19C/MHZ19C.h   | 1 +
 src/main.cpp          | 3 +++
 3 files changed, 12 insertions(+)

diff --git a/lib/MHZ19C/MHZ19C.cpp b/lib/MHZ19C/MHZ19C.cpp
index f97fda6..c097840 100644
--- a/lib/MHZ19C/MHZ19C.cpp
+++ b/lib/MHZ19C/MHZ19C.cpp
@@ -33,6 +33,14 @@ MHZ19C::MHZ19C(void) {
     Serial.setTimeout(MHZ19C_READ_TIMEOUT);
 }
 
+void MHZ19C::initialize(void) {
+  #ifdef MHZ19C_ENABLE_AUTOCAL
+  setSelfCalibration(1);
+  #else
+  setSelfCalibration(0);
+  #endif
+}
+
 void MHZ19C::getSensorData(lora_data &loradata) {
     write(MHZ19C_CMD_GET_PPM, 0x00);
     delay(50);
diff --git a/lib/MHZ19C/MHZ19C.h b/lib/MHZ19C/MHZ19C.h
index 9e76e0f..0129ef0 100644
--- a/lib/MHZ19C/MHZ19C.h
+++ b/lib/MHZ19C/MHZ19C.h
@@ -51,6 +51,7 @@ class MHZ19C {
 
   public:
     MHZ19C(void);
+    void MHZ19C::initialize(void);
     void getSensorData(lora_data &loradata);
     void setSelfCalibration(bool state);
 };
diff --git a/src/main.cpp b/src/main.cpp
index 4fe72f0..339372d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -199,6 +199,9 @@ void setup()
   #ifdef HAS_BME280
   sensor.getCalData();
   #endif
+  #ifdef HAS_MHZ19C
+  sensor.initialize();
+  #endif
 
   // Setup LMIC
   DEBUG_PRINT("Initializing LMIC...")