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v5.12.0b - Add support for sensor SHTC3 

5.12.0b
 * Add support for sensor SHTC3 (#1967)
This commit is contained in:
arendst 2018-02-19 15:33:06 +01:00
parent 77be56363a
commit 664cdeb63f
3 changed files with 25 additions and 10 deletions
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1
sonoff/_releasenotes.ino
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@ -13,6 +13,7 @@
* Change Sonoff SC JSON format (#1939)
* Fix compile error when define HOME_ASSISTANT_DISCOVERY_ENABLE is not set (#1937)
* Add optional TSL2561 driver using library Joba_Tsl2561 to be enabled in user_config.h with define USE_TSL2561_JOBA (#1951)
* Add support for sensor SHTC3 (#1967)
*
* 5.12.0a
* Change platformio option sonoff-ds18x20 to sonoff-xxl enabling ds18x20 and all other sensors in one image

2
sonoff/user_config.h
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@ -183,7 +183,7 @@
#define USE_I2C // I2C using library wire (+10k code, 0k2 mem, 124 iram)
#ifdef USE_I2C
#define USE_SHT // Add I2C emulating code for SHT1X sensor (+1k4 code)
#define USE_SHT3X // Add I2C code for SHT3x sensor (+0k6 code)
#define USE_SHT3X // Add I2C code for SHT3x or SHTC3 sensor (+0k7 code)
#define USE_HTU // Add I2C code for HTU21/SI7013/SI7020/SI7021 sensor (+1k5 code)
#define USE_BMP // Add I2C code for BMP085/BMP180/BMP280/BME280 sensor (+4k code)
// #define USE_BME680 // Add additional support for BME680 sensor using Adafruit Sensor and BME680 libraries (+6k code)

32
sonoff/xsns_14_sht3x.ino
View File

@ -20,17 +20,21 @@
#ifdef USE_I2C
#ifdef USE_SHT3X
/*********************************************************************************************\
* SHT3X - Temperature and Humidy
* SHT3X and SHTC3 - Temperature and Humidy
*
* I2C Address: 0x44 or 0x45
* I2C Address: 0x44, 0x45 or 0x70 (SHTC3)
\*********************************************************************************************/
#define SHT3X_ADDR_GND 0x44 // address pin low (GND)
#define SHT3X_ADDR_VDD 0x45 // address pin high (VDD)
#define SHTC3_ADDR 0x70 // address for shtc3 sensor
const char kShtTypes[] PROGMEM = "SHT3X|SHT3X|SHTC3";
uint8_t sht3x_type = 0;
uint8_t sht3x_address;
uint8_t sht3x_addresses[] = { SHT3X_ADDR_GND, SHT3X_ADDR_VDD };
uint8_t sht3x_addresses[] = { SHT3X_ADDR_GND, SHT3X_ADDR_VDD, SHTC3_ADDR };
char sht3x_types[6];
bool Sht3xRead(float &t, float &h)
{
@ -40,8 +44,17 @@ bool Sht3xRead(float &t, float &h)
h = NAN;
Wire.beginTransmission(sht3x_address);
Wire.write(0x2C); // Enable clock stretching
Wire.write(0x06); // High repeatability
if (SHTC3_ADDR == sht3x_address) {
Wire.write(0x35); // Wake from
Wire.write(0x17); // sleep
Wire.endTransmission();
Wire.beginTransmission(sht3x_address);
Wire.write(0x78); // Dissable clock stretching ( I don't think that wire library support clock stretching )
Wire.write(0x66); // High resolution
} else {
Wire.write(0x2C); // Enable clock stretching
Wire.write(0x06); // High repeatability
}
if (Wire.endTransmission() != 0) { // Stop I2C transmission
return false;
}
@ -69,7 +82,8 @@ void Sht3xDetect()
for (byte i = 0; i < sizeof(sht3x_addresses); i++) {
sht3x_address = sht3x_addresses[i];
if (Sht3xRead(t, h)) {
snprintf_P(log_data, sizeof(log_data), S_LOG_I2C_FOUND_AT, "SHT3X", sht3x_address);
GetTextIndexed(sht3x_types, sizeof(sht3x_types), i, kShtTypes);
snprintf_P(log_data, sizeof(log_data), S_LOG_I2C_FOUND_AT, sht3x_types, htu_address);
AddLog(LOG_LEVEL_DEBUG);
return;
}
@ -89,14 +103,14 @@ void Sht3xShow(boolean json)
dtostrfd(h, Settings.flag2.humidity_resolution, humidity);
if (json) {
snprintf_P(mqtt_data, sizeof(mqtt_data), JSON_SNS_TEMPHUM, mqtt_data, "SHT3X", temperature, humidity);
snprintf_P(mqtt_data, sizeof(mqtt_data), JSON_SNS_TEMPHUM, mqtt_data, sht3x_types, temperature, humidity);
#ifdef USE_DOMOTICZ
DomoticzTempHumSensor(temperature, humidity);
#endif // USE_DOMOTICZ
#ifdef USE_WEBSERVER
} else {
snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_TEMP, mqtt_data, "SHT3X", temperature, TempUnit());
snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_HUM, mqtt_data, "SHT3X", humidity);
snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_TEMP, mqtt_data, sht3x_types, temperature, TempUnit());
snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_HUM, mqtt_data, sht3x_types, humidity);
#endif // USE_WEBSERVER
}
}