From 4b71c626b06de7ea411c14bd5ec5c175d16a6eb6 Mon Sep 17 00:00:00 2001 From: miguel5612 Date: Sun, 20 Mar 2022 12:59:19 -0500 Subject: [PATCH] Fixed comment mentioned #29 --- examples/MQ-135-ALL/MQ-135-ALL.ino | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/examples/MQ-135-ALL/MQ-135-ALL.ino b/examples/MQ-135-ALL/MQ-135-ALL.ino index 44ad2ad..7454bcf 100644 --- a/examples/MQ-135-ALL/MQ-135-ALL.ino +++ b/examples/MQ-135-ALL/MQ-135-ALL.ino @@ -98,10 +98,10 @@ void loop() { float Aceton = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup Serial.print("| "); Serial.print(CO); Serial.print(" | "); Serial.print(Alcohol); - // Note: 200 Offset for CO2 source: https://github.com/miguel5612/MQSensorsLib/issues/29 + // Note: 400 Offset for CO2 source: https://github.com/miguel5612/MQSensorsLib/issues/29 /* Motivation: - We have added 200 PPM because when the library is calibrated it assumes the current state of the + We have added 400 PPM because when the library is calibrated it assumes the current state of the air as 0 PPM, and it is considered today that the CO2 present in the atmosphere is around 400 PPM. https://www.lavanguardia.com/natural/20190514/462242832581/concentracion-dioxido-cabono-co2-atmosfera-bate-record-historia-humanidad.html */