mirror of https://github.com/arendst/Tasmota.git
Added Max44009 support
This commit is contained in:
Louis Lagendijk
parent
72bc9b8107
commit
5b7ba95b0c
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@ -549,6 +549,7 @@ const char HTTP_SNS_PRESSURE[] PROGMEM = "%s{s}%s " D_PRESSURE "{m}%s %s{e}";
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const char HTTP_SNS_SEAPRESSURE[] PROGMEM = "%s{s}%s " D_PRESSUREATSEALEVEL "{m}%s %s{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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const char HTTP_SNS_ANALOG[] PROGMEM = "%s{s}%s " D_ANALOG_INPUT "%d{m}%d{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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const char HTTP_SNS_ILLUMINANCE[] PROGMEM = "%s{s}%s " D_ILLUMINANCE "{m}%d " D_UNIT_LUX "{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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const char HTTP_SNS_ILLUMINANCE_S[] PROGMEM = "%s{s}%s " D_ILLUMINANCE "{m}%s " D_UNIT_LUX "{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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#if defined(USE_MHZ19) || defined(USE_SENSEAIR) || defined(USE_AZ7798)
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const char HTTP_SNS_CO2[] PROGMEM = "%s{s}%s " D_CO2 "{m}%d " D_UNIT_PARTS_PER_MILLION "{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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@ -0,0 +1,166 @@
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/*
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xsns_91_max44009.ino - MAX44009 ambient light sensor support for Sonoff-Tasmota
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Copyright (C) 2019 Theo Arends
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef USE_I2C
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#ifdef USE_MAX44009
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/*********************************************************************************************\
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* MAX44009 - Ambient Light Intensity
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*
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* I2C Address: 0x23 or 0x5C
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\*********************************************************************************************/
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#define XSNS_91 91
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#define MAX44009_ADDR1 0x4A
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#define MAX44009_ADDR2 0x4B
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#define REG_CONFIG 0x02
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#define REG_LUMINANCE 0x03
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#define MAX44009_CONTINUOUS_AUTO_MODE 0x80 // Start measurement in automatic, continous mode
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uint8_t max44009_address;
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uint8_t max44009_addresses[] = { MAX44009_ADDR1, MAX44009_ADDR2 };
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uint8_t max44009_type = 0;
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uint8_t max44009_valid = 0;
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float max44009_illuminance = 0;
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char max44009_types[] = "MAX44009";
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bool Max4409Read_lum(void)
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{
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if (max44009_valid) { max44009_valid--; }
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/* Select luminance start register */
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Wire.beginTransmission(max44009_address);
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Wire.write(REG_LUMINANCE);
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Wire.endTransmission();
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if (2 != Wire.requestFrom(max44009_address, (uint8_t)2)) { return false; }
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byte msb = Wire.read();
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byte lsb = Wire.read();
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int exponent = (msb & 0xF0) >> 4;
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int mantissa = ((msb & 0x0F) << 4) | (lsb & 0x0F);
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max44009_illuminance = pow(2, exponent) * mantissa * 0.045;
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max44009_valid = SENSOR_MAX_MISS;
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return true;
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}
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/********************************************************************************************/
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void Max4409Detect(void)
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{
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if (max44009_type) {
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return;
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}
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for (byte i = 0; i < sizeof(max44009_addresses); i++) {
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max44009_address = max44009_addresses[i];
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Wire.beginTransmission(max44009_address);
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/* select configuration register iand set mode */
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Wire.write(REG_CONFIG);
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Wire.write(MAX44009_CONTINUOUS_AUTO_MODE);
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if (!Wire.endTransmission()) {
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max44009_type = 1;
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snprintf_P(log_data, sizeof(log_data), S_LOG_I2C_FOUND_AT, max44009_types, max44009_address);
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AddLog(LOG_LEVEL_DEBUG);
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break;
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}
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}
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}
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void Max4409EverySecond(void)
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{
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if (90 == (uptime %100)) {
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// 1mS
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Max4409Detect();
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}
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else {
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// 1mS
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if (max44009_type) {
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if (!Max4409Read_lum()) {
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AddLogMissed(max44009_types, max44009_valid);
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// if (!max44009_valid) { max44009_type = 0; }
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}
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}
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}
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}
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void Max4409Show(boolean json)
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{
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char illum_str[8];
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if (max44009_valid) {
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/* convert illuminance to fixed size string */
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if (max44009_illuminance < 10) {
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dtostrf(max44009_illuminance, sizeof(illum_str) -1, 3, illum_str);
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} else if (max44009_illuminance < 100) {
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dtostrf(max44009_illuminance, sizeof(illum_str) -1, 2, illum_str);
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} else if (max44009_illuminance < 1000) {
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dtostrf(max44009_illuminance, sizeof(illum_str) -1, 1, illum_str);
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} else {
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dtostrf(max44009_illuminance, sizeof(illum_str) -1, 0, illum_str);
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}
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if (json) {
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s,\"%s\":{\"" D_JSON_ILLUMINANCE "\":%s}"), mqtt_data, max44009_types, illum_str);
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#ifdef USE_DOMOTICZ
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if (0 == tele_period) {
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DomoticzSensor(DZ_ILLUMINANCE, illum_str);
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}
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#endif // USE_DOMOTICZ
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#ifdef USE_WEBSERVER
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} else {
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snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_ILLUMINANCE_S, mqtt_data, max44009_types, illum_str);
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#endif // USE_WEBSERVER
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}
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}
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}
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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boolean Xsns91(byte function)
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{
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boolean result = false;
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if (i2c_flg) {
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switch (function) {
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case FUNC_INIT:
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Max4409Detect();
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break;
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case FUNC_EVERY_SECOND:
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Max4409EverySecond();
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break;
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case FUNC_JSON_APPEND:
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Max4409Show(1);
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break;
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#ifdef USE_WEBSERVER
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case FUNC_WEB_APPEND:
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Max4409Show(0);
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break;
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#endif // USE_WEBSERVER
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}
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}
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return result;
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}
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#endif // USE_MAX44009
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#endif // USE_I2C
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