mirror of https://github.com/arendst/Tasmota.git
144 lines
3.9 KiB
C++
144 lines
3.9 KiB
C++
/*
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xsns_84_tof10120.ino - TOF10120 sensor support for Tasmota
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Copyright (C) 2021 Cyril Pawelko 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_TOF10120
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/*********************************************************************************************\
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* TOF10120 I2C Mode (Serial not supported)
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*
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* I2C Address: 0x52
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*
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* Connections:
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* 1 - Black Gnd
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* 2 - Red Vcc
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* 3 - Yellow Rxd - Not supported
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* 4 - White Txd - Not supported
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* 5 - Blue I2C SDA
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* 6 - Green I2C SCL
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\*********************************************************************************************/
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#define XSNS_84 84
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#define XI2C_57 57 // See I2CDEVICES.md
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#define TOF10120_ADDRESS 0x52
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#define TOF10120_INCORRECT_DISTANCE 0xFFFF
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struct {
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uint16_t distance = 0;
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bool ready = false;
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} tof10120_sensor;
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/********************************************************************************************/
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uint16_t Tof10120Read() {
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uint16_t distance;
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Wire.beginTransmission(TOF10120_ADDRESS);
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Wire.write(byte(0x00));
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Wire.endTransmission();
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delay(1);
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Wire.requestFrom(TOF10120_ADDRESS, 2);
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if (Wire.available() == 2) {
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distance = Wire.read();
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distance = distance <<8;
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distance |= Wire.read();
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} else { // Incorrect value read
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AddLog_P(LOG_LEVEL_DEBUG, "TOF: No value read");
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return TOF10120_INCORRECT_DISTANCE;
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}
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AddLog_P(LOG_LEVEL_DEBUG_MORE, "TOF: Distance %u", distance);
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return distance;
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}
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void Tof10120Detect(void) {
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if (!I2cSetDevice(TOF10120_ADDRESS)) { return; }
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if (Tof10120Read() == TOF10120_INCORRECT_DISTANCE) { return; }
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I2cSetActiveFound(TOF10120_ADDRESS, "TOF10120");
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tof10120_sensor.ready = true;
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}
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void Tof10120Every_250MSecond(void) {
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uint16_t dist = Tof10120Read();
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// if ( dist < 400000) {
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// dist = TOF10120_INCORRECT_DISTANCE;
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// }
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tof10120_sensor.distance = dist;
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}
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#ifdef USE_DOMOTICZ
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void Tof10120Every_Second(void) {
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char distance[FLOATSZ];
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dtostrfd((float)tof10120_sensor.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 Tof10120Show(bool json) {
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if (json) {
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ResponseAppend_P(PSTR(",\"TOF10120\":{\"" D_JSON_DISTANCE "\":%d}"), tof10120_sensor.distance);
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#ifdef USE_DOMOTICZ
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if (0 == TasmotaGlobal.tele_period) {
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Tof10120Every_Second();
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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_SNS_DISTANCE, PSTR("TOF10120"), tof10120_sensor.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 Xsns84(uint8_t function) {
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if (!I2cEnabled(XI2C_57)) { return false; }
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bool result = false;
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if (FUNC_INIT == function) {
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Tof10120Detect();
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}
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else if (tof10120_sensor.ready) {
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switch (function) {
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case FUNC_EVERY_250_MSECOND:
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Tof10120Every_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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Tof10120Every_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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Tof10120Show(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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Tof10120Show(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_TOF10120
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#endif // USE_I2C
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