mirror of https://github.com/arendst/Tasmota.git
131 lines
3.5 KiB
C++
131 lines
3.5 KiB
C++
/*
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xsns_77_vl53l1x.ino - VL53L1X sensor support for Tasmota
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Copyright (C) 2020 Theo Arends, Rui Marinho and Johann Obermeier
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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_VL53L1X
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/*********************************************************************************************\
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* VL53L1X
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*
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* Source:
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*
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* I2C Address: 0x29
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\*********************************************************************************************/
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#define XSNS_77 77
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#define XI2C_54 54 // See I2CDEVICES.md
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#include "VL53L1X.h"
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VL53L1X vl53l1x = VL53L1X(); // create object copy
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#define VL53L1X_ADDRESS 0x29
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struct {
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bool ready = false;
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uint16_t distance = 0;
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} vl53l1x_sensors;
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/********************************************************************************************/
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void Vl53l1Detect(void) {
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if (!I2cSetDevice(VL53L1X_ADDRESS)) { return; }
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if (!vl53l1x.init()) { return; }
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I2cSetActiveFound(vl53l1x.getAddress(), "VL53L1X");
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vl53l1x.setTimeout(500);
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vl53l1x.setDistanceMode(VL53L1X::Long); // could be Short, Medium, Long
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vl53l1x.setMeasurementTimingBudget(140000);
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vl53l1x.startContinuous(50);
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vl53l1x_sensors.ready = true;
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}
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#ifdef USE_WEBSERVER
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const char HTTP_SNS_VL53L1X[] PROGMEM =
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"{s}VL53L1X " D_DISTANCE "{m}%d" D_UNIT_MILLIMETER "{e}"; // {s} = <tr><th>, {m} = </th><td>, {e} = </td></tr>
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#endif // USE_WEBSERVER
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void Vl53l1Every_250MSecond(void) {
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// every 250 ms
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uint16_t dist = vl53l1x.read();
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if (!dist || dist > 4000) {
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dist = 9999;
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}
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vl53l1x_sensors.distance = dist;
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}
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#ifdef USE_DOMOTICZ
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void Vl53l1Every_Second(void) {
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char distance[FLOATSZ];
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dtostrfd((float)vl53l1x_sensors.distance / 10, 1, distance);
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DomoticzSensor(DZ_ILLUMINANCE, distance);
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}
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#endif // USE_DOMOTICZ
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void Vl53l1Show(bool json) {
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if (json) {
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#ifdef USE_DOMOTICZ
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if (0 == TasmotaGlobal.tele_period) {
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Vl53l1Every_Second();
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}
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#endif // USE_DOMOTICZ
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ResponseAppend_P(PSTR(",\"VL53L1X\":{\"" D_JSON_DISTANCE "\":%d}"), vl53l1x_sensors.distance);
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#ifdef USE_WEBSERVER
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} else {
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WSContentSend_PD(HTTP_SNS_VL53L1X, vl53l1x_sensors.distance);
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#endif
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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 Xsns77(uint8_t function)
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{
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if (!I2cEnabled(XI2C_54)) { return false; }
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bool result = false;
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if (FUNC_INIT == function) {
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Vl53l1Detect();
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}
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else if (vl53l1x_sensors.ready) {
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switch (function) {
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case FUNC_EVERY_250_MSECOND:
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Vl53l1Every_250MSecond();
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break;
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#ifdef USE_DOMOTICZ
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case FUNC_EVERY_SECOND:
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Vl53l1Every_Second();
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break;
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#endif // USE_DOMOTICZ
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case FUNC_JSON_APPEND:
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Vl53l1Show(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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Vl53l1Show(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_VL53L1X
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#endif // USE_I2C
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