mirror of https://github.com/arendst/Tasmota.git
170 lines
5.4 KiB
C++
170 lines
5.4 KiB
C++
/*
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xsns_91_vindriktning.ino - IKEA vindriktning particle concentration sensor support for Tasmota
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Copyright (C) 2021 Marcel Ritter 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_VINDRIKTNING
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/*********************************************************************************************\
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* IKEA VINDRIKTNING particle concentration sensor
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\*********************************************************************************************/
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#define XSNS_91 91
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#include <TasmotaSerial.h>
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#ifndef MIN_INTERVAL_PERIOD
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#define MIN_INTERVAL_PERIOD 60 // minimum interval period in seconds required for passive mode
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#endif
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#define VINDRIKTNING_DATASET_SIZE 20
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TasmotaSerial *VindriktningSerial;
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struct VINDRIKTNING {
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uint16_t pm2_5 = 0;
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uint16_t pm1_0 = 0;
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uint16_t pm10 = 0;
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uint8_t type = 1;
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uint8_t valid = 0;
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bool discovery_triggered = false;
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} Vindriktning;
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bool VindriktningReadData(void) {
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if (!VindriktningSerial->available()) {
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return false;
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}
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int serial_in_byte_counter = 0;
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uint8_t buffer[VINDRIKTNING_DATASET_SIZE];
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uint8_t crc = 0;
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while (VindriktningSerial->available()) {
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uint8_t serial_in_byte = VindriktningSerial->read();
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if (serial_in_byte_counter <= VINDRIKTNING_DATASET_SIZE -1) {
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buffer[serial_in_byte_counter++] = serial_in_byte;
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crc += serial_in_byte;
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}
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}
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VindriktningSerial->flush(); // Make room for another burst
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AddLogBuffer(LOG_LEVEL_DEBUG_MORE, buffer, VINDRIKTNING_DATASET_SIZE);
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if (serial_in_byte_counter < VINDRIKTNING_DATASET_SIZE) {
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AddLog(LOG_LEVEL_DEBUG, PSTR("VDN: Not enough data (%d < 20)"), serial_in_byte_counter);
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return false;
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}
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if (crc != 0) {
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AddLog(LOG_LEVEL_DEBUG, PSTR("VDN: " D_CHECKSUM_FAILURE));
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return false;
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}
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// sample data:
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// 16 11 0b 00 00 00 0c 00 00 03 cb 00 00 00 0c 01 00 00 00 e7
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// |pm2_5| |pm1_0| |pm10 | | CRC |
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Vindriktning.pm2_5 = (buffer[5] << 8) | buffer[6];
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Vindriktning.pm1_0 = (buffer[9] << 8) | buffer[10];
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Vindriktning.pm10 = (buffer[13] << 8) | buffer[14];
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if (!Vindriktning.discovery_triggered) {
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TasmotaGlobal.discovery_counter = 1; // force TasDiscovery()
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Vindriktning.discovery_triggered = true;
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}
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return true;
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}
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/*********************************************************************************************/
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void VindriktningSecond(void) { // Every second
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if (VindriktningReadData()) {
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Vindriktning.valid = MIN_INTERVAL_PERIOD;
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} else {
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if (Vindriktning.valid) {
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Vindriktning.valid--;
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}
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}
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}
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/*********************************************************************************************/
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void VindriktningInit(void) {
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Vindriktning.type = 0;
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if (PinUsed(GPIO_VINDRIKTNING_RX)) {
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VindriktningSerial = new TasmotaSerial(Pin(GPIO_VINDRIKTNING_RX), -1, 1);
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if (VindriktningSerial->begin(9600)) {
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if (VindriktningSerial->hardwareSerial()) { ClaimSerial(); }
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Vindriktning.type = 1;
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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_VINDRIKTNING_SNS[] PROGMEM =
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"{s}VINDRIKTNING " D_ENVIRONMENTAL_CONCENTRATION " 1.0 " D_UNIT_MICROMETER "{m}%d " D_UNIT_MICROGRAM_PER_CUBIC_METER "{e}"
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"{s}VINDRIKTNING " D_ENVIRONMENTAL_CONCENTRATION " 2.5 " D_UNIT_MICROMETER "{m}%d " D_UNIT_MICROGRAM_PER_CUBIC_METER "{e}"
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"{s}VINDRIKTNING " D_ENVIRONMENTAL_CONCENTRATION " 10 " D_UNIT_MICROMETER "{m}%d " 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 VindriktningShow(bool json) {
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if (Vindriktning.valid) {
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if (json) {
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ResponseAppend_P(PSTR(",\"VINDRIKTNING\":{\"PM1\":%d,\"PM2.5\":%d,\"PM10\":%d}"),
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Vindriktning.pm1_0, Vindriktning.pm2_5, Vindriktning.pm10);
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#ifdef USE_DOMOTICZ
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if (0 == TasmotaGlobal.tele_period) {
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DomoticzSensor(DZ_COUNT, Vindriktning.pm1_0); // PM1.0
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DomoticzSensor(DZ_VOLTAGE, Vindriktning.pm2_5); // PM2.5
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DomoticzSensor(DZ_CURRENT, Vindriktning.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_VINDRIKTNING_SNS, Vindriktning.pm1_0, Vindriktning.pm2_5, Vindriktning.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 Xsns91(uint8_t function) {
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bool result = false;
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if (Vindriktning.type) {
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switch (function) {
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case FUNC_EVERY_SECOND:
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VindriktningSecond();
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break;
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case FUNC_JSON_APPEND:
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VindriktningShow(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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VindriktningShow(0);
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break;
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#endif // USE_WEBSERVER
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case FUNC_INIT:
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VindriktningInit();
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break;
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}
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}
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return result;
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}
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#endif // USE_VINDRIKTNING
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