From 365347136c647c70569d34aa8da28666e30586e2 Mon Sep 17 00:00:00 2001 From: Alec Delaney <89490472+tekktrik@users.noreply.github.com> Date: Thu, 6 Oct 2022 20:28:43 -0400 Subject: [PATCH] Add note about standard vs. atmospheric conditions --- adafruit_pm25/__init__.py | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/adafruit_pm25/__init__.py b/adafruit_pm25/__init__.py index 45a3593..4795e52 100644 --- a/adafruit_pm25/__init__.py +++ b/adafruit_pm25/__init__.py @@ -74,7 +74,13 @@ def _read_into_buffer(self) -> None: def read(self) -> dict: """Read any available data from the air quality sensor and - return a dictionary with available particulate/quality data""" + return a dictionary with available particulate/quality data + + Note that "standard" concentrations are those when corrected to + standard atmospheric conditions (288.15 K, 1013.25 hPa), and + "environmental" concentrations are those measure in the current + atmospheric conditions. + """ self._read_into_buffer() # print([hex(i) for i in self._buffer])