mirror of https://github.com/arendst/Tasmota.git
179 lines
5.2 KiB
C++
179 lines
5.2 KiB
C++
/*
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xsns_98_ENS16x.ino - ENS16x gas and air quality sensor support for Tasmota
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Copyright (C) 2021 Christoph Friese 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_ENS16x
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/*********************************************************************************************\
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* ENS16x - Gas (TVOC - Total Volatile Organic Compounds) and Air Quality (CO2)
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*
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* Source: ScioSense
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*
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* I2C Address: 0x52
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\*********************************************************************************************/
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#define XSNS_111 111
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#define XI2C_84 84 // See I2CDEVICES.md
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#define ENS16x_EVERYNSECONDS 5
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#define ENS16x_DEVICE_NAME "EN16X"
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#define ENS16x_LOG "E16"
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#define ENS16x_MAX_COUNT 2
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#include "ScioSense_ENS16x.h"
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typedef struct ENS16xData_s {
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ScioSense_ENS16x *ens16x;
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uint16_t TVOC;
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uint16_t eCO2;
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uint16_t AQIS;
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uint8_t ready;
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uint8_t tcnt;
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uint8_t ecnt;
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} ENS16xDATA_t;
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ENS16xDATA_t *ENS16xData[ENS16x_MAX_COUNT] = {nullptr, };
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uint8_t ENS16xCount = 0;
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/********************************************************************************************/
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void ens16xDetect(void)
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{
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ENS16xCount = 0;
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ENS16xDATA_t *pENS16X;
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ScioSense_ENS16x *ens16x;
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uint8_t i2caddr = ENS16x_I2CADDR_0;
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for (uint8_t i = 0 ; i < ENS16x_MAX_COUNT; i++, i2caddr++) {
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if (!I2cActive(i2caddr)) {
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ens16x = new ScioSense_ENS16x(i2caddr);
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if (!ens16x) {
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AddLog(LOG_LEVEL_DEBUG, PSTR(ENS16x_LOG":@%02X create error!"), i2caddr);
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continue;
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}
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if (!(ens16x->begin())) {
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AddLog(LOG_LEVEL_DEBUG_MORE, PSTR(ENS16x_LOG":@%02X begin error!"), i2caddr);
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continue;
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}
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if (!(ens16x->setMode(ENS16x_OPMODE_STD))) {
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AddLog(LOG_LEVEL_ERROR, PSTR(ENS16x_LOG":@%02X setmode error!"), i2caddr);
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continue;
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}
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pENS16X = (ENS16xDATA_t*)calloc(1, sizeof(ENS16xDATA_t));
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if (!pENS16X) {
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AddLog(LOG_LEVEL_ERROR, PSTR(ENS16x_LOG":@%02X Memory error!"), i2caddr);
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continue;
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}
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pENS16X->ens16x = ens16x;
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ENS16xData[ENS16xCount] = pENS16X;
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ENS16xCount++;
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I2cSetActiveFound(i2caddr, ENS16x_DEVICE_NAME);
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}
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}
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}
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void ens16xUpdate(void) // Perform every n second
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{
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for (uint8_t i = 0 ; i < ENS16xCount; i++) {
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ENS16xDATA_t *pENS16X = ENS16xData[i];
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pENS16X->tcnt++;
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if (pENS16X->tcnt >= ENS16x_EVERYNSECONDS) {
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pENS16X->tcnt = 0;
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pENS16X->ready = 0;
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if (pENS16X->ens16x->available()) {
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pENS16X->ens16x->measure();
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pENS16X->TVOC = pENS16X->ens16x->getTVOC();
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pENS16X->eCO2 = pENS16X->ens16x->geteCO2();
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if (pENS16X->ens16x->revENS16x() > 0) pENS16X->AQIS = pENS16X->ens16x->getAQIS();
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else pENS16X->AQIS = pENS16X->ens16x->getAQI();
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pENS16X->ready = 1;
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pENS16X->ecnt = 0;
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}
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} else {
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// failed, count up
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pENS16X->ecnt++;
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if (pENS16X->ecnt > 6) {
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// after 30 seconds, restart
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pENS16X->ens16x->begin();
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if (pENS16X->ens16x->available()) {
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pENS16X->ens16x->setMode(ENS16x_OPMODE_STD);
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}
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}
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}
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}
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}
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const char HTTP_SNS_ENS16x[] PROGMEM =
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"{s}%s AQI{m}%d {e}" // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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"{s}%s " D_ECO2 "{m}%d " D_UNIT_PARTS_PER_MILLION "{e}"
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"{s}%s " D_TVOC "{m}%d " D_UNIT_PARTS_PER_BILLION "{e}";
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void ens16xShow(bool json)
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{
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char name[20];
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for (uint8_t i = 0 ; i < ENS16xCount; i++) {
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ENS16xDATA_t *pENS16X = ENS16xData[i];
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if (pENS16X->ready) {
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snprintf_P(name, sizeof(name), (ENS16xCount > 1) ? PSTR("%s%c%d") : PSTR("%s"), ENS16x_DEVICE_NAME, IndexSeparator(), i +1);
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if (json) {
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ResponseAppend_P(PSTR(",\"%s\":{\"AQIS\":%d,\"" D_JSON_ECO2 "\":%d,\"" D_JSON_TVOC "\":%d}"), name, pENS16X->AQIS, pENS16X->eCO2, pENS16X->TVOC);
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#ifdef USE_WEBSERVER
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} else {
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WSContentSend_PD(HTTP_SNS_ENS16x, name, pENS16X->AQIS, name, pENS16X->eCO2, name, pENS16X->TVOC);
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#endif
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}
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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 Xsns111(uint32_t function)
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{
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if (!I2cEnabled(XI2C_84)) { return false; }
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bool result = false;
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if (FUNC_INIT == function) {
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ens16xDetect();
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}
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else if (ENS16xCount) {
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switch (function) {
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case FUNC_EVERY_SECOND:
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ens16xUpdate();
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break;
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case FUNC_JSON_APPEND:
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ens16xShow(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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ens16xShow(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_ENS16x
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#endif // USE_I2C
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