From 7ece72b39a003c9793a77628e93235964c8cfd57 Mon Sep 17 00:00:00 2001
From: dakkar <dakkar@thenautilus.net>
Date: Sat, 2 Apr 2022 12:46:36 +0100
Subject: simple serial command protocol

tagged responses, just because
---
 co2.h | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'co2.h')

diff --git a/co2.h b/co2.h
index f75c94c..a6a1480 100644
--- a/co2.h
+++ b/co2.h
@@ -72,4 +72,42 @@ public:
         Serial.println(errorMessage);
     }
   }
+
+  bool serialCommand(const String &tag, const String &command) {
+    if (command.startsWith("setco ")) {
+      uint16_t error;
+      char errorMessage[256];
+
+      uint16_t target = command.substring(6).toInt();
+      uint16_t correction;
+
+      scd4x.stopPeriodicMeasurement();
+      delay(500);
+      error = scd4x.performForcedRecalibration(target, correction);
+      if (error) {
+        Serial.print("! CO2 performForcedRecalibration() error: ");
+        errorToString(error, errorMessage, 256);
+        Serial.println(errorMessage);
+      }
+
+      Serial.print(tag);Serial.print(" setco ");
+      if (correction == 0xFFFF) {
+        Serial.println("failed");
+      }
+      else {
+        Serial.println(correction - 0x8000);
+      }
+
+      error = scd4x.startLowPowerPeriodicMeasurement();
+      if (error) {
+        Serial.print("! CO2 startLowPowerPeriodicMeasurement() error: ");
+        errorToString(error, errorMessage, 256);
+        Serial.println(errorMessage);
+      }
+
+      return true;
+    }
+
+    return false;
+  }
 };
-- 
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