Tasmota/tasmota/xsns_77_vl53l1x.ino

125 lines
3.3 KiB
C++

/*
xsns_77_vl53l1x.ino - VL53L1X sensor support for Tasmota
Copyright (C) 2021 Theo Arends, Rui Marinho and Johann Obermeier
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_I2C
#ifdef USE_VL53L1X
/*********************************************************************************************\
* VL53L1X
*
* Source:
*
* I2C Address: 0x29
\*********************************************************************************************/
#define XSNS_77 77
#define XI2C_54 54 // See I2CDEVICES.md
#include "VL53L1X.h"
VL53L1X vl53l1x = VL53L1X(); // create object copy
#define VL53L1X_ADDRESS 0x29
struct {
uint16_t distance = 0;
bool ready = false;
} vl53l1x_sensors;
/********************************************************************************************/
void Vl53l1Detect(void) {
if (!I2cSetDevice(VL53L1X_ADDRESS)) { return; }
if (!vl53l1x.init()) { return; }
I2cSetActiveFound(vl53l1x.getAddress(), "VL53L1X");
vl53l1x.setTimeout(500);
vl53l1x.setDistanceMode(VL53L1X::Long); // could be Short, Medium, Long
vl53l1x.setMeasurementTimingBudget(140000);
vl53l1x.startContinuous(50);
vl53l1x_sensors.ready = true;
}
void Vl53l1Every_250MSecond(void) {
uint16_t dist = vl53l1x.read();
if (!dist || dist > 4000) {
dist = 9999;
}
vl53l1x_sensors.distance = dist;
}
#ifdef USE_DOMOTICZ
void Vl53l1Every_Second(void) {
char distance[FLOATSZ];
dtostrfd((float)vl53l1x_sensors.distance / 10, 1, distance);
DomoticzSensor(DZ_ILLUMINANCE, distance);
}
#endif // USE_DOMOTICZ
void Vl53l1Show(bool json) {
if (json) {
ResponseAppend_P(PSTR(",\"VL53L1X\":{\"" D_JSON_DISTANCE "\":%d}"), vl53l1x_sensors.distance);
#ifdef USE_DOMOTICZ
if (0 == TasmotaGlobal.tele_period) {
Vl53l1Every_Second();
}
#endif // USE_DOMOTICZ
#ifdef USE_WEBSERVER
} else {
WSContentSend_PD(HTTP_SNS_DISTANCE, PSTR("VL53L1X"), vl53l1x_sensors.distance);
#endif
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xsns77(uint8_t function) {
if (!I2cEnabled(XI2C_54)) { return false; }
bool result = false;
if (FUNC_INIT == function) {
Vl53l1Detect();
}
else if (vl53l1x_sensors.ready) {
switch (function) {
case FUNC_EVERY_250_MSECOND:
Vl53l1Every_250MSecond();
break;
#ifdef USE_DOMOTICZ
case FUNC_EVERY_SECOND:
Vl53l1Every_Second();
break;
#endif // USE_DOMOTICZ
case FUNC_JSON_APPEND:
Vl53l1Show(1);
break;
#ifdef USE_WEBSERVER
case FUNC_WEB_SENSOR:
Vl53l1Show(0);
break;
#endif // USE_WEBSERVER
}
}
return result;
}
#endif // USE_VL53L1X
#endif // USE_I2C