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Fix spelling mistakes (#1104)

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This commit is contained in:
Mikael Falkvidd
2018-04-09 23:31:50 +02:00
committed by tekka
parent bb80732ead
commit f2d9f72cf4
24 changed files with 61 additions and 61 deletions
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examples/CO2Sensor/CO2Sensor.ino
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@@ -28,7 +28,7 @@
* Pad 6: PWM output ==> pin 6
*
* From: http://davidegironi.blogspot.fr/2014/01/co2-meter-using-ndir-infrared-mh-z14.html
* MH-Z14 has a PWM output, with a sensitivity range of 0ppm to 2000ppm CO2, an accurancy of ±200ppm.
* MH-Z14 has a PWM output, with a sensitivity range of 0ppm to 2000ppm CO2, an accuracy of ±200ppm.
* The cycle is 1004ms±5%, given the duty cicle Th (pulse high), Tl is 1004-Th, we can convert it to CO2 value using the formula:
* CO2ppm = 2000 * (Th - 2ms) /(Th + Tl - 4ms)
* From: http://airqualityegg.wikispaces.com/Sensor+Tests