mirror of https://github.com/arendst/Tasmota.git
126 lines
3.4 KiB
C++
126 lines
3.4 KiB
C++
/*
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xsns_57_tsl2591.ino - TSL2591 light sensor support for Tasmota
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Copyright (C) 2020 Markus Bösling and 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_TSL2591
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/*********************************************************************************************\
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* TSL2591 - Light Intensity
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*
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* I2C Addresses: 0x29 (low), 0x39 (float) or 0x49 (high)
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* (Used library supports address 0x29 only)
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\*********************************************************************************************/
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#define XSNS_57 57
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#define XI2C_40 40 // See I2CDEVICES.md
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#define TSL2591_ADDRESS 0x29 // Used library only supports this address only
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#include <Adafruit_TSL2591.h>
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Adafruit_TSL2591 tsl = Adafruit_TSL2591();
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uint8_t tsl2591_type = 0;
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uint8_t tsl2591_valid = 0;
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float tsl2591_lux = 0;
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void Tsl2591Init(void)
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{
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// if (I2cSetDevice(0x29) || I2cSetDevice(0x39) || I2cSetDevice(0x49)) {
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if (I2cSetDevice(0x29)) {
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if (tsl.begin()) {
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tsl.setGain(TSL2591_GAIN_MED);
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tsl.setTiming(TSL2591_INTEGRATIONTIME_300MS);
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tsl2591_type = 1;
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I2cSetActiveFound(TSL2591_ADDRESS, "TSL2591");
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}
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}
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}
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bool Tsl2591Read(void)
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{
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uint32_t lum = tsl.getFullLuminosity();
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uint16_t ir, full;
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ir = lum >> 16;
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full = lum & 0xFFFF;
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tsl2591_lux = tsl.calculateLux(full, ir);
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tsl2591_valid = 1;
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}
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void Tsl2591EverySecond(void)
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{
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Tsl2591Read();
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}
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#ifdef USE_WEBSERVER
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const char HTTP_SNS_TSL2591[] PROGMEM =
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"{s}TSL2591 " D_ILLUMINANCE "{m}%s " D_UNIT_LUX "{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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#endif // USE_WEBSERVER
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void Tsl2591Show(bool json)
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{
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if (tsl2591_valid) {
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char lux_str[10];
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dtostrf(tsl2591_lux, sizeof(lux_str)-1, 3, lux_str);
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if (json) {
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ResponseAppend_P(PSTR(",\"TSL2591\":{\"" D_JSON_ILLUMINANCE "\":%s}"), lux_str);
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#ifdef USE_DOMOTICZ
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if (0 == TasmotaGlobal.tele_period) { DomoticzSensor(DZ_ILLUMINANCE, tsl2591_lux); }
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#endif // USE_DOMOTICZ
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#ifdef USE_WEBSERVER
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} else {
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WSContentSend_PD(HTTP_SNS_TSL2591, lux_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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bool Xsns57(uint8_t function)
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{
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if (!I2cEnabled(XI2C_40)) { return false; }
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bool result = false;
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if (FUNC_INIT == function) {
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Tsl2591Init();
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}
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else if (tsl2591_type) {
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switch (function) {
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case FUNC_EVERY_SECOND:
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Tsl2591EverySecond();
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break;
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case FUNC_JSON_APPEND:
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Tsl2591Show(1);
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break;
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#ifdef USE_WEBSERVER
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case FUNC_WEB_SENSOR:
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Tsl2591Show(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_TSL2591
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#endif // USE_I2C
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