mirror of
https://github.com/1technophile/OpenMQTTGateway.git
synced 2026-02-20 00:32:04 +01:00
10a9d00aaf
* added .clang-format * added names to travis jobs removed deprecated travis option * check github action * added .gitignore
78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
|
|
OpenMQTTGateway Addon - ESP8266 or Arduino program for home automation
|
|
|
|
Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal and a MQTT broker
|
|
Send and receiving command by MQTT
|
|
|
|
HC SR-04 reading Addon
|
|
|
|
Copyright: (c)Florian ROBERT
|
|
|
|
Contributors:
|
|
- 1technophile
|
|
- mpember
|
|
|
|
This file is part of OpenMQTTGateway.
|
|
|
|
OpenMQTTGateway 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.
|
|
|
|
OpenMQTTGateway 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/>.
|
|
*/
|
|
#include "User_config.h"
|
|
|
|
#ifdef ZsensorHCSR04
|
|
|
|
unsigned long timeHCSR04 = 0;
|
|
|
|
void setupHCSR04() {
|
|
Log.notice(F("HCSR04 trigger pin: %d" CR), HCSR04_TRI_PIN);
|
|
Log.notice(F("HCSR04 echo pin: %d" CR), HCSR04_ECH_PIN);
|
|
pinMode(HCSR04_TRI_PIN, OUTPUT); // declare HC SR-04 trigger pin as output
|
|
pinMode(HCSR04_ECH_PIN, INPUT); // declare HC SR-04 echo pin as input
|
|
}
|
|
|
|
void MeasureDistance() {
|
|
if (millis() > (timeHCSR04 + TimeBetweenReadingHCSR04)) {
|
|
timeHCSR04 = millis();
|
|
Log.trace(F("Creating HCSR04 buffer" CR));
|
|
StaticJsonBuffer<JSON_MSG_BUFFER> jsonBuffer;
|
|
JsonObject& HCSR04data = jsonBuffer.createObject();
|
|
digitalWrite(HCSR04_TRI_PIN, LOW);
|
|
delayMicroseconds(2);
|
|
digitalWrite(HCSR04_TRI_PIN, HIGH);
|
|
delayMicroseconds(10);
|
|
digitalWrite(HCSR04_TRI_PIN, LOW);
|
|
unsigned long duration = pulseIn(HCSR04_ECH_PIN, HIGH);
|
|
if (isnan(duration)) {
|
|
Log.error(F("Failed to read from HC SR04 sensor!" CR));
|
|
} else {
|
|
static unsigned int distance = 99999;
|
|
unsigned int d = duration / 58.2;
|
|
HCSR04data.set("distance", (int)d);
|
|
if (d > distance) {
|
|
HCSR04data.set("direction", "away");
|
|
Log.trace(F("HC SR04 Distance changed" CR));
|
|
} else if (d < distance) {
|
|
HCSR04data.set("direction", "towards");
|
|
Log.trace(F("HC SR04 Distance changed" CR));
|
|
} else if (HCSR04_always) {
|
|
HCSR04data.set("direction", "static");
|
|
Log.trace(F("HC SR04 Distance hasn't changed" CR));
|
|
}
|
|
distance = d;
|
|
if (HCSR04data.size() > 0)
|
|
pub(subjectHCSR04, HCSR04data);
|
|
}
|
|
}
|
|
}
|
|
#endif
|