From 03cd543127317f3984fea0cdc3149421128824ca Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Fri, 12 Jun 2020 12:38:52 +0200
Subject: [PATCH] Add support for HP303B
Add support for HP303B Temperature and Pressure sensor by Robert Jaakke (#8638)
---
RELEASENOTES.md | 1 +
tasmota/CHANGELOG.md | 1 +
tasmota/my_user_config.h | 1 +
tasmota/tasmota_configurations.h | 1 +
tasmota/xsns_73_hp303b.ino | 114 ++++++++++++++++---------------
5 files changed, 62 insertions(+), 56 deletions(-)
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index ab01ddaa4..c1637501c 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -77,3 +77,4 @@ The following binary downloads have been compiled with ESP8266/Arduino library c
- Add support for up to eight MCP9808 temperature sensors by device111 (#8594)
- Add support for BL0940 energy monitor as used in Blitzwolf BW-SHP10 (#8175)
- Add initial support for Telegram bot (#8619)
+- Add support for HP303B Temperature and Pressure sensor by Robert Jaakke (#8638)
diff --git a/tasmota/CHANGELOG.md b/tasmota/CHANGELOG.md
index 9033a2bba..0c6ef82bd 100644
--- a/tasmota/CHANGELOG.md
+++ b/tasmota/CHANGELOG.md
@@ -3,6 +3,7 @@
### 8.3.1.3 20200611
- Add initial support for Telegram bot (#8619)
+- Add support for HP303B Temperature and Pressure sensor by Robert Jaakke (#8638)
### 8.3.1.2 20200522
diff --git a/tasmota/my_user_config.h b/tasmota/my_user_config.h
index ea2e6eefe..d6a140663 100644
--- a/tasmota/my_user_config.h
+++ b/tasmota/my_user_config.h
@@ -527,6 +527,7 @@
// #define USE_VEML6075 // [I2cDriver49] Enable VEML6075 UVA/UVB/UVINDEX Sensor (I2C address 0x10) (+2k1 code)
// #define USE_VEML7700 // [I2cDriver50] Enable VEML7700 Ambient Light sensor (I2C addresses 0x10) (+4k5 code)
// #define USE_MCP9808 // [I2cDriver51] Enable MCP9808 temperature sensor (I2C addresses 0x18 - 0x1F) (+0k9 code)
+// #define USE_HP303B // [I2cDriver52] Enable HP303B temperature and pressure sensor (I2C address 0x76 or 0x77) (+6k2 code)
// #define USE_DISPLAY // Add I2C Display Support (+2k code)
#define USE_DISPLAY_MODES1TO5 // Enable display mode 1 to 5 in addition to mode 0
diff --git a/tasmota/tasmota_configurations.h b/tasmota/tasmota_configurations.h
index 811076d8f..ff81e486d 100644
--- a/tasmota/tasmota_configurations.h
+++ b/tasmota/tasmota_configurations.h
@@ -155,6 +155,7 @@
//#define USE_TASMOTA_SLAVE // Add support for Arduino Uno/Pro Mini via serial interface including flashing (+2k3 code, 44 mem)
//#define USE_OPENTHERM // Add support for OpenTherm (+15k code)
//#define USE_MCP9808 // Add support for MCP9808 temperature sensor (+0k9 code)
+//#define USE_HP303B // Add support for HP303B temperature and pressure sensor (I2C address 0x76 or 0x77) (+6k2 code)
#define USE_ENERGY_SENSOR // Add energy sensors (-14k code)
#define USE_PZEM004T // Add support for PZEM004T Energy monitor (+2k code)
diff --git a/tasmota/xsns_73_hp303b.ino b/tasmota/xsns_73_hp303b.ino
index 1be0a1606..0d9363409 100644
--- a/tasmota/xsns_73_hp303b.ino
+++ b/tasmota/xsns_73_hp303b.ino
@@ -16,58 +16,57 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see .
*/
+
#ifdef USE_I2C
#ifdef USE_HP303B
/*********************************************************************************************\
- * HP303B - Gas (TVOC - Total Volatile Organic Compounds) and Air Quality (CO2)
+ * HP303B - Pressure and temperature sensor
*
* Source: Lolin LOLIN_HP303B_Library
*
* I2C Address: 0x77 or 0x76
\*********************************************************************************************/
-#define XSNS_73 73
-#define XI2C_52 52 // See I2CDEVICES.md
+#define XSNS_73 73
+#define XI2C_52 52 // See I2CDEVICES.md
+
+#define HP303B_MAX_SENSORS 2
+#define HP303B_START_ADDRESS 0x76
#include
// HP303B Object
LOLIN_HP303B HP303BSensor = LOLIN_HP303B();
-#define HP303B_MAX_SENSORS 2
-#define HP303B_START_ADDRESS 0x76
-
struct {
-char types[7] = "HP303B";
-uint8_t count = 0;
-int16_t oversampling = 7;
+ int16_t oversampling = 7;
+ char types[7] = "HP303B";
+ uint8_t count = 0;
} hp303b_cfg;
struct BHP303B {
- uint8_t address;
- uint8_t valid = 0;
float temperature = NAN;
float pressure = NAN;
+ uint8_t address;
+ uint8_t valid = 0;
} hp303b_sensor[HP303B_MAX_SENSORS];
+
/*********************************************************************************************/
-bool HP303B_Read(uint8_t hp303b_idx)
-{
+bool HP303B_Read(uint32_t hp303b_idx) {
if (hp303b_sensor[hp303b_idx].valid) { hp303b_sensor[hp303b_idx].valid--; }
float t;
+ if (HP303BSensor.measureTempOnce(t, hp303b_sensor[hp303b_idx].address, hp303b_cfg.oversampling) != 0) {
+ return false;
+ }
+
float p;
- int16_t ret;
-
- ret = HP303BSensor.measureTempOnce(t, hp303b_sensor[hp303b_idx].address, hp303b_cfg.oversampling);
- if (ret != 0)
- return false;
-
- ret = HP303BSensor.measurePressureOnce(p, hp303b_sensor[hp303b_idx].address, hp303b_cfg.oversampling);
- if (ret != 0)
+ if (HP303BSensor.measurePressureOnce(p, hp303b_sensor[hp303b_idx].address, hp303b_cfg.oversampling) != 0) {
return false;
+ }
hp303b_sensor[hp303b_idx].temperature = (float)ConvertTemp(t);
- hp303b_sensor[hp303b_idx].pressure = (float)ConvertPressure(p) / 100; //conversion to hPa
+ hp303b_sensor[hp303b_idx].pressure = (float)ConvertPressure(p / 100); // Conversion to hPa
hp303b_sensor[hp303b_idx].valid = SENSOR_MAX_MISS;
return true;
@@ -75,14 +74,11 @@ bool HP303B_Read(uint8_t hp303b_idx)
/********************************************************************************************/
-void HP303B_Detect(void)
-{
- for (uint32_t i = 0; i < HP303B_MAX_SENSORS; i++)
- {
- if (!I2cSetDevice(HP303B_START_ADDRESS + i )) { continue; }
+void HP303B_Detect(void) {
+ for (uint32_t i = 0; i < HP303B_MAX_SENSORS; i++) {
+ if (!I2cSetDevice(HP303B_START_ADDRESS + i)) { continue; }
- if (HP303BSensor.begin(HP303B_START_ADDRESS + i))
- {
+ if (HP303BSensor.begin(HP303B_START_ADDRESS + i)) {
hp303b_sensor[hp303b_cfg.count].address = HP303B_START_ADDRESS + i;
I2cSetActiveFound(hp303b_sensor[hp303b_cfg.count].address, hp303b_cfg.types);
hp303b_cfg.count++;
@@ -90,50 +86,58 @@ void HP303B_Detect(void)
}
}
-void HP303B_EverySecond(void)
-{
+void HP303B_EverySecond(void) {
for (uint32_t i = 0; i < hp303b_cfg.count; i++) {
if (uptime &1) {
- if (!HP303B_Read(i)) {
- AddLogMissed(hp303b_cfg.types, hp303b_sensor[i].valid);
+ if (!HP303B_Read(i)) {
+ AddLogMissed(hp303b_cfg.types, hp303b_sensor[i].valid);
+ }
}
}
- }
}
-void HP303B_Show(bool json)
-{
+void HP303B_Show(bool json) {
for (uint32_t i = 0; i < hp303b_cfg.count; i++) {
- char sensor_name[12];
- strlcpy(sensor_name, hp303b_cfg.types, sizeof(sensor_name));
- if (hp303b_cfg.count > 1) {
- snprintf_P(sensor_name, sizeof(sensor_name), PSTR("%s%c0x%02X"), sensor_name, IndexSeparator(), hp303b_sensor[i].address); // HP303B-0x76, HP303B-0x77
- }
+ if (hp303b_sensor[i].valid) {
+ char sensor_name[12];
+ strlcpy(sensor_name, hp303b_cfg.types, sizeof(sensor_name));
+ if (hp303b_cfg.count > 1) {
+ snprintf_P(sensor_name, sizeof(sensor_name), PSTR("%s%c%02X"), sensor_name, IndexSeparator(), hp303b_sensor[i].address); // HP303B-76, HP303B-77
+ }
+
+ float sealevel = 0.0;
+ if (hp303b_sensor[i].pressure != 0.0) {
+ sealevel = (hp303b_sensor[i].pressure / FastPrecisePow(1.0 - ((float)Settings.altitude / 44330.0), 5.255)) - 21.6;
+ sealevel = ConvertPressure(sealevel);
+ }
- if (hp303b_sensor[i].valid)
- {
char str_temperature[33];
dtostrfd(hp303b_sensor[i].temperature, Settings.flag2.temperature_resolution, str_temperature);
char str_pressure[33];
dtostrfd(hp303b_sensor[i].pressure, Settings.flag2.pressure_resolution, str_pressure);
+ char sea_pressure[33];
+ dtostrfd(sealevel, Settings.flag2.pressure_resolution, sea_pressure);
- if (json)
- {
+ if (json) {
ResponseAppend_P(PSTR(",\"%s\":{\"" D_JSON_TEMPERATURE "\":%s,\"" D_JSON_PRESSURE "\":%s"), sensor_name, str_temperature, str_pressure);
+ if (Settings.altitude != 0) {
+ ResponseAppend_P(PSTR(",\"" D_JSON_PRESSUREATSEALEVEL "\":%s"), sea_pressure);
+ }
ResponseJsonEnd();
- #ifdef USE_DOMOTICZ
+#ifdef USE_DOMOTICZ
// Domoticz and knx only support one temp sensor
if ((0 == tele_period) && (0 == i)) {
DomoticzSensor(DZ_TEMP, hp303b_sensor[i].temperature);
}
- #endif // USE_DOMOTICZ
- #ifdef USE_WEBSERVER
- }
- else
- {
+#endif // USE_DOMOTICZ
+#ifdef USE_WEBSERVER
+ } else {
WSContentSend_PD(HTTP_SNS_TEMP, sensor_name, str_temperature, TempUnit());
WSContentSend_PD(HTTP_SNS_PRESSURE, sensor_name, str_pressure, PressureUnit().c_str());
- #endif // USE_WEBSERVER
+ if (Settings.altitude != 0) {
+ WSContentSend_PD(HTTP_SNS_SEAPRESSURE, sensor_name, sea_pressure, PressureUnit().c_str());
+ }
+#endif // USE_WEBSERVER
}
}
}
@@ -152,10 +156,8 @@ bool Xsns73(uint8_t function)
if (FUNC_INIT == function) {
HP303B_Detect();
}
- else if (hp303b_cfg.count)
- {
- switch (function)
- {
+ else if (hp303b_cfg.count) {
+ switch (function) {
case FUNC_EVERY_SECOND:
HP303B_EverySecond();
break;