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ensure DS18S20 are properly resolved via address

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Your Name 2021-05-29 21:37:27 +02:00
parent 200ff30f62
commit 8e5a13d291
1 changed files with 26 additions and 17 deletions
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37
esp32/src/main.cpp
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@ -184,28 +184,39 @@ void espDeepSleepFor(long seconds, bool activatePump, bool withHomieShutdown)
//requires homie being started //requires homie being started
void readOneWireSensors(bool withMQTT) void readOneWireSensors(bool withMQTT)
{ {
int sensorCount = sensors.getDS18Count();
Serial << "Read OneWire" << endl; Serial << "Read OneWire" << endl;
Serial.flush(); Serial.flush();
for (uint8_t i = 0; i < sensorCount; i++) for (uint8_t i = 0; i < sensors.getDeviceCount(); i++)
{ {
DeviceAddress ds18b20Address; uint8_t ds18b20Address[8];
sensors.getAddress(ds18b20Address, i);
bool valid = false; bool valid = false;
float temp = -127; float temp = -127;
for (int retry = 0; retry < AMOUNT_SENOR_QUERYS && !valid; retry++) for (int retry = 0; retry < AMOUNT_SENOR_QUERYS && !valid; retry++)
{
bool validAddress = sensors.getAddress(ds18b20Address, i);
if (validAddress && sensors.validFamily(ds18b20Address))
{ {
temp = sensors.getTempC(ds18b20Address); temp = sensors.getTempC(ds18b20Address);
if (temp != -127) if (temp != -127)
{ {
valid = true; valid = true;
} }
else
{
delay(10);
}
}
} }
//TODO is -127 bus error? if so add retry code if(!valid){
//wrong family or crc errors on each retry
continue;
}
char buf[sizeof(DeviceAddress) * 2]; char buf[sizeof(ds18b20Address) * 2];
snprintf(buf, sizeof(buf), "%.2X%.2X%.2X%.2X%.2X%.2X%.2X%.2X", snprintf(buf, sizeof(buf), "%.2X%.2X%.2X%.2X%.2X%.2X%.2X%.2X",
ds18b20Address[0], ds18b20Address[0],
ds18b20Address[1], ds18b20Address[1],
@ -218,7 +229,7 @@ void readOneWireSensors(bool withMQTT)
if (valid) if (valid)
{ {
Serial << "OneWire sensor " << String(buf) << " has value " << temp << endl; Serial << "DS18S20 Temperatur " << String(buf) << " : " << temp << " °C " << endl;
if (String(lipoSensorAddr.get()).compareTo(String(buf))) if (String(lipoSensorAddr.get()).compareTo(String(buf)))
{ {
if (withMQTT) if (withMQTT)
@ -240,11 +251,10 @@ void readOneWireSensors(bool withMQTT)
{ {
sensorTemp.setProperty(String(buf)).send(String(temp)); sensorTemp.setProperty(String(buf)).send(String(temp));
} }
Serial << "Temperatur " << String(buf) << " : " << temp << " °C " << endl;
} }
else else
{ {
Serial << "OneWire sensor " << String(buf) << " could not be read " << temp << endl; Serial << "DS18S20 sensor " << String(buf) << " could not be read " << temp << endl;
} }
} }
@ -583,12 +593,12 @@ void setup()
delay(50); delay(50);
} }
Serial << "One wire count: " << sensorCount << " found in " << (millis() - tempInitStartTime) << "ms" << endl; Serial << "DS18S20 count: " << sensorCount << " found in " << (millis() - tempInitStartTime) << " ms" << endl;
Serial.flush(); Serial.flush();
/* Measure temperature TODO idea: move this into setup */ /* Measure temperature TODO idea: move this into setup */
if (sensorCount > 0) if (sensorCount > 0)
{ {
sensors.setResolution(DS18B20_RESOLUTION); //sensors.setResolution(DS18B20_RESOLUTION);
sensors.requestTemperatures(); sensors.requestTemperatures();
} }
Serial << "Reading sensors start" << endl; Serial << "Reading sensors start" << endl;
@ -602,9 +612,8 @@ void setup()
// Set default values // Set default values
//in seconds //in seconds
deepSleepTime.setDefaultValue(600).setValidator([](long candidate) { deepSleepTime.setDefaultValue(600).setValidator([](long candidate)
return (candidate > 0) && (candidate < (60 * 60 * 2) /** 2h max sleep */); { return (candidate > 0) && (candidate < (60 * 60 * 2) /** 2h max sleep */); });
});
deepSleepNightTime.setDefaultValue(600); deepSleepNightTime.setDefaultValue(600);
wateringDeepSleep.setDefaultValue(5); wateringDeepSleep.setDefaultValue(5);
ntpServer.setDefaultValue("pool.ntp.org"); ntpServer.setDefaultValue("pool.ntp.org");