From 9e807b8d0d9ff4cfeefa812938ef49ade1d94714 Mon Sep 17 00:00:00 2001
From: schneider <schneider@blinkenlichts.net>
Date: Sun, 3 May 2020 14:40:59 +0200
Subject: [PATCH] feat(bsec): add option to set a static temperature offset
---
Documentation/card10-cfg.rst | 2 ++
epicardium/modules/bsec.c | 12 +++++++++---
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/Documentation/card10-cfg.rst b/Documentation/card10-cfg.rst
index 0c992b15..b24c7b54 100644
--- a/Documentation/card10-cfg.rst
+++ b/Documentation/card10-cfg.rst
@@ -60,4 +60,6 @@ Option name Type Description
``bsec_enable`` Boolean Activate the Bosch :ref:`BSEC` binary blob to compute an Indoor Air Quality indication.
------------------ ---------- -----------
``bsec_debug`` Boolean Turn on debug output of the BSEC system. Prints each meaurement on the console.
+------------------ ---------- -----------
+``bsec_offset`` Integer Temperature offset in .1 K. Example: Set to `-14` if temperature reads 1.4 "C" to high.
================== ========== ===========
diff --git a/epicardium/modules/bsec.c b/epicardium/modules/bsec.c
index 443d7a4b..53c2da85 100644
--- a/epicardium/modules/bsec.c
+++ b/epicardium/modules/bsec.c
@@ -363,8 +363,6 @@ int bsec_activate(void)
float sample_rate = BSEC_SAMPLE_RATE_LP;
#endif
- float temperature_offset = 0.0;
-
bool bsec_enabled =
config_get_boolean_with_default("bsec_enabled", false);
if (!bsec_enabled) {
@@ -372,10 +370,18 @@ int bsec_activate(void)
}
debug = config_get_boolean_with_default("bsec_debug", false);
+
+ float temperature_offset =
+ config_get_integer_with_default("bsec_offset", 0) / 10.;
+ if (temperature_offset != 0.0) {
+ printf("BSEC Temp offset %d/10 K\n",
+ (int)(temperature_offset * 10));
+ }
+
/* Puts AT LEAST 2 * #BSEC_MAX_PROPERTY_BLOB_SIZE = 2 * 454 = 908 bytes onto the stack */
ret = bsec_iot_init(
sample_rate,
- temperature_offset,
+ -temperature_offset,
i2c_write,
i2c_read,
delay,
--
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