Ollo/HomieRoomSensor
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Do not publish invalid PM2.5 values

Browse Source
This commit is contained in:
Ollo 2021-12-21 13:18:46 +01:00
parent c0aa9c8da1
commit 33ef6bc21b
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/main.cpp
View File

@ -51,6 +51,8 @@
#define BUTTON_MIN_ACTION_CYCLE 55U /**< Minimum cycle to react on the button (e.g. 5 second) */ #define BUTTON_MIN_ACTION_CYCLE 55U /**< Minimum cycle to react on the button (e.g. 5 second) */
#define BUTTON_CHECK_INTERVALL 100U /**< Check every 100 ms the button state */ #define BUTTON_CHECK_INTERVALL 100U /**< Check every 100 ms the button state */
#define PM_MAX 1001 /**< According datasheet https://en.gassensor.com.cn/ParticulateMatterSensor/info_itemid_105.html 1000 is the maximum */
#define LOG_TOPIC "log\0" #define LOG_TOPIC "log\0"
#define MQTT_LEVEL_ERROR 1 #define MQTT_LEVEL_ERROR 1
#define MQTT_LEVEL_WARNING 10 #define MQTT_LEVEL_WARNING 10
@ -188,7 +190,12 @@ int getSensorData() {
// Header und Prüfsumme checken // Header und Prüfsumme checken
if (serialRxBuf[0] == 0x16 && serialRxBuf[1] == 0x11 && serialRxBuf[2] == 0x0B /* && checksum == 0 */) if (serialRxBuf[0] == 0x16 && serialRxBuf[1] == 0x11 && serialRxBuf[2] == 0x0B /* && checksum == 0 */)
{ {
return (serialRxBuf[5] << 8 | serialRxBuf[6]); int pmValue = (serialRxBuf[5] << 8 | serialRxBuf[6]);
if (pmValue > PM_MAX) {
return (-1);
} else {
return pmValue;
}
} }
else else
{ {