From fe626d5607f6e84d99a0f38cdceb30b788d0b60c Mon Sep 17 00:00:00 2001
From: Francois <thiebolt@irit.fr>
Date: Sat, 12 Mar 2022 15:16:02 +0100
Subject: [PATCH] update
---
neosensor/libraries/neocampus_drivers/SCD4x.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/neosensor/libraries/neocampus_drivers/SCD4x.h b/neosensor/libraries/neocampus_drivers/SCD4x.h
index 3578a643..54ae6ba1 100644
--- a/neosensor/libraries/neocampus_drivers/SCD4x.h
+++ b/neosensor/libraries/neocampus_drivers/SCD4x.h
@@ -1,7 +1,7 @@
/**************************************************************************/
/*!
@file SCD4x.h
- @author F. Thiebolt
+ @author F.Thiebolt
@license
This is part of a the neOCampus drivers library.
@@ -45,7 +45,9 @@
/* scd4x commands
* Note:
- * - 1ms min. delay between two commands
+ * Measurement is either 5s or 30s (normal vs low-power modes)
+ * It does not start a new measurement till you don't readout the values
+ * ==> using automatic measurement ought not to consume more power :s
* - most commands need a 1ms execution time
* - CO2, temp and humidity are measured and sent in a single 9bytes frame
* 16bits C02 + CRC + 16bits T + CRC + 16bits RH + CRC
@@ -55,7 +57,7 @@
enum class scd4xCmd_t : uint16_t {
// basic commands
- start_periodic_measurement = 0x21b1, // 5000ms measurement delay
+ start_periodic_measurement = 0x21b1, // execution time: none. 5000ms measurement delay (i.e read_measurement)
read_measurement = 0xec05, // execution time: 1ms
stop_periodic_measurement = 0x3f86, // execution time: 500ms
--
GitLab