mirror of https://github.com/arendst/Tasmota.git
147 lines
4.1 KiB
C++
147 lines
4.1 KiB
C++
/*
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xsns_56_hpma.ino - Honeywell HPMA115S0 particle concentration sensor support for Tasmota
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Copyright (C) 2020 Theo Arends
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Copyright (C) 2020 David Hunt
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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_HPMA
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/*********************************************************************************************\
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* Honeywell HPMA115S0 particle concentration sensor
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* For background information see
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* https://sensing.honeywell.com/hpma115s0-xxx-particulate-matter-sensors
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* For protocol specification see
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* https://sensing.honeywell.com/honeywell-sensing-hpm-series-particle-sensors-datasheet-32322550-e-en.pdf
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*
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\*********************************************************************************************/
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#define XSNS_56 56
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#include <hpma115S0.h>
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#include <TasmotaSerial.h>
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TasmotaSerial *HpmaSerial;
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HPMA115S0 *hpma115S0;
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uint8_t hpma_type = 1;
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uint8_t hpma_valid = 0;
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struct hpmadata {
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unsigned int pm10;
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unsigned int pm2_5;
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} hpma_data;
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/*********************************************************************************************/
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void HpmaSecond(void) // Every second
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{
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unsigned int pm2_5, pm10;
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/*
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* Sensor sends data every second, so we just read it and update the structure.
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*/
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if (hpma115S0->ReadParticleMeasurement(&pm2_5, &pm10)) {
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hpma_data.pm2_5 = pm2_5;
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hpma_data.pm10 = pm10;
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hpma_valid = 1;
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}
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}
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void HpmaInit(void)
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{
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hpma_type = 0;
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if (pin[GPIO_HPMA_RX] < 99 && pin[GPIO_HPMA_TX] < 99) {
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HpmaSerial = new TasmotaSerial(pin[GPIO_HPMA_RX], pin[GPIO_HPMA_TX], 1);
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hpma115S0 = new HPMA115S0(*HpmaSerial);
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if (HpmaSerial->begin(9600)) {
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if (HpmaSerial->hardwareSerial()) {
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ClaimSerial();
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}
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hpma_type = 1;
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hpma115S0->Init();
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hpma115S0->StartParticleMeasurement();
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}
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}
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}
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#ifdef USE_WEBSERVER
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const char HTTP_HPMA_SNS[] PROGMEM =
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"{s}HPMA " D_ENVIRONMENTAL_CONCENTRATION "2.5 " D_UNIT_MICROMETER "{m}%s " D_UNIT_MICROGRAM_PER_CUBIC_METER "{e}"
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"{s}HPMA " D_ENVIRONMENTAL_CONCENTRATION "10 " D_UNIT_MICROMETER "{m}%s " D_UNIT_MICROGRAM_PER_CUBIC_METER "{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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#endif // USE_WEBSERVER
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void HpmaShow(bool json)
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{
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if (hpma_valid) {
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char pm10[33];
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snprintf_P(pm10, 33, PSTR("%d"), hpma_data.pm10);
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char pm2_5[33];
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snprintf_P(pm2_5, 33, PSTR("%d"), hpma_data.pm2_5);
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if (json) {
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ResponseAppend_P(PSTR(",\"HPMA\":{\"PM2.5\":%d,\"PM10\":%d}"), hpma_data.pm2_5, hpma_data.pm10);
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#ifdef USE_DOMOTICZ
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if (0 == tele_period) {
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DomoticzSensor(DZ_VOLTAGE, pm2_5); // PM2.5
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DomoticzSensor(DZ_CURRENT, pm10); // PM10
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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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WSContentSend_PD(HTTP_HPMA_SNS, pm2_5, pm10);
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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 Xsns56(uint8_t function)
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{
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bool result = false;
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if (hpma_type) {
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switch (function) {
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case FUNC_INIT:
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HpmaInit();
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break;
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case FUNC_EVERY_SECOND:
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HpmaSecond();
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break;
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case FUNC_COMMAND_SENSOR:
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if (XSNS_56 == XdrvMailbox.index) {
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return true;
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}
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break;
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case FUNC_JSON_APPEND:
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HpmaShow(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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HpmaShow(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_HPMA
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