From 0604a79c4e09b44d767ef6409b38f137f675f306 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michael=20K=C3=A4ppler?= <michael_kaeppler@web.de> Date: Thu, 22 Apr 2021 12:58:38 +0200 Subject: [PATCH] co2_sensor: Report invalid CO2 measurements --- ampel-firmware/co2_sensor.cpp | 1 + 1 file changed, 1 insertion(+) diff --git a/ampel-firmware/co2_sensor.cpp b/ampel-firmware/co2_sensor.cpp index 8a031b1..a41162a 100644 --- a/ampel-firmware/co2_sensor.cpp +++ b/ampel-firmware/co2_sensor.cpp @@ -216,6 +216,7 @@ namespace sensor { if (co2 <= 0) { // NOTE: Data is available, but it's sometimes erroneous: the sensor outputs // zero ppm but non-zero temperature and non-zero humidity. + Serial.println(F("Invalid sensor data - CO2 concentration <= 0 ppm")); switchState(BOOTUP); } else if (co2 < 250) { // Sensor should be calibrated. -- GitLab