105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
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#ifndef _TEMPERATURE_H_
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#define _TEMPERATURE_H_
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#include <OneWire.h>
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#include <DallasTemperature.h>
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DeviceAddress thermometerESCFront={0x28,0xFF,0x64,0x0E,0x77,0xB0,0xAB,0x4B}; //IC with one marking 28FF640E77B0AB4B
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float temp_ESCFront;
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DeviceAddress thermometerESCRear={0x28,0xFF,0x64,0x0E,0x76,0x5D,0x86,0xC2}; //IC with two markings
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float temp_ESCRear;
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DeviceAddress thermometerAir={0x28,0xFF,0x64,0x0E,0x74,0x7E,0xFE,0x23}; //IC with three markings 28FF640E747EFE23
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float temp_Air;
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#define ONE_WIRE_BUS A2 //GPIO pin
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#define TEMPERATURE_PRECISION 12 //max is 12
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#define READINTERVAL_DS18B20 5000 //ms
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// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
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OneWire oneWire(ONE_WIRE_BUS);
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// Pass our oneWire reference to Dallas Temperature.
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DallasTemperature sensors(&oneWire);
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void initTemperature();
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void temperatureLoop();
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void printAddress(DeviceAddress deviceAddress);
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void initTemperature() {
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sensors.begin();
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delay(1000);
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Serial.print("Locating devices...");
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Serial.print("Found ");
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Serial.print(sensors.getDeviceCount(), DEC);
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Serial.println(" devices.");
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delay(1000);
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delay(1000);
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//Just search for devices. Only needed when connecting a new sensor to find the address
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oneWire.reset_search();
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for (uint8_t i=0;i<sensors.getDeviceCount();i++){
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DeviceAddress _addr;
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if (!oneWire.search(_addr)) {
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Serial.print("Error: Device not found");
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}else{
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Serial.print("Found device. Address:");
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printAddress(_addr);
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}
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Serial.println();
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}
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delay(1000);
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//sensors.setResolution(thermometerReservoir, TEMPERATURE_PRECISION);
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}
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void temperatureLoop(unsigned long loopmillis) {
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static unsigned long last_read_ds18b20;
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static bool flag_requestTemperatures=false;
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if (loopmillis>last_read_ds18b20+READINTERVAL_DS18B20) {
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if (loopmillis>last_read_ds18b20+READINTERVAL_DS18B20*10) { //timeout
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Serial.println("Warn: Request Temperatures Timeout!");
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flag_requestTemperatures=false;
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}
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if (!flag_requestTemperatures) {
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unsigned long _start=millis();
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sensors.requestTemperatures(); //this takes ~34ms
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Serial.print("DS Request took ms:"); Serial.println(millis()-_start);
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flag_requestTemperatures=true;
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}
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if (sensors.isConversionComplete()) {
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flag_requestTemperatures=false;
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last_read_ds18b20=loopmillis;
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temp_ESCFront= sensors.getTempC(thermometerESCFront); //This takes ~12.5ms
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temp_ESCRear= sensors.getTempC(thermometerESCRear);
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temp_Air= sensors.getTempC(thermometerAir);
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/*
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Serial.print("temp_ESCFront: "); Serial.println(temp_ESCFront);
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Serial.print("temp_ESCRear: "); Serial.println(temp_ESCRear);
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Serial.print("temp_Air: "); Serial.println(temp_Air);
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*/
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}
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}
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}
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void printAddress(DeviceAddress deviceAddress)
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{
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for (uint8_t i = 0; i < 8; i++)
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{
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// zero pad the address if necessary
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if (deviceAddress[i] < 16) Serial.print("0");
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Serial.print(deviceAddress[i], HEX);
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}
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}
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#endif
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