Arduino code for reading a TSL2561 and a ds18S20
#include <OneWire.h> | |
#include <Adafruit_Sensor.h> | |
#include <Adafruit_TSL2561_U.h> | |
int DS18S20_Pin = 3; | |
OneWire ds(DS18S20_Pin); | |
Adafruit_TSL2561_Unified tsl = Adafruit_TSL2561_Unified(TSL2561_ADDR_FLOAT, 12345); | |
void setup() { | |
// put your setup code here, to run once: | |
Serial.begin(9600); | |
if(!tsl.begin()) | |
{ | |
/* There was a problem detecting the ADXL345 ... check your connections */ | |
Serial.print("Ooops, no TSL2561 detected ... Check your wiring or I2C ADDR!"); | |
while(1); | |
} | |
} | |
void loop() { | |
float temperature = getTemperature(); | |
/* Get a new sensor event */ | |
sensors_event_t event; | |
tsl.getEvent(&event); | |
Serial.print("{\"temperature\":"); | |
Serial.print(temperature); | |
Serial.print(", \"light\":"); | |
Serial.print(event.light); | |
Serial.print("}\n"); | |
delay(5000); | |
} | |
/**************************************************************************/ | |
/* | |
Configures the gain and integration time for the TSL2561 | |
*/ | |
/**************************************************************************/ | |
void configureSensor(void) | |
{ | |
/* You can also manually set the gain or enable auto-gain support */ | |
// tsl.setGain(TSL2561_GAIN_1X); /* No gain ... use in bright light to avoid sensor saturation */ | |
// tsl.setGain(TSL2561_GAIN_16X); /* 16x gain ... use in low light to boost sensitivity */ | |
//tsl.enableAutoGain(true); /* Auto-gain ... switches automatically between 1x and 16x */ | |
/* Changing the integration time gives you better sensor resolution (402ms = 16-bit data) */ | |
tsl.setIntegrationTime(TSL2561_INTEGRATIONTIME_13MS); /* fast but low resolution */ | |
//tsl.setIntegrationTime(TSL2561_INTEGRATIONTIME_101MS); /* medium resolution and speed */ | |
//tsl.setIntegrationTime(TSL2561_INTEGRATIONTIME_402MS); /* 16-bit data but slowest conversions */ | |
} | |
float getTemperature() { | |
//returns the temperature from one DS18S20 in DEG Celsius | |
byte data[12]; | |
byte addr[8]; | |
if ( !ds.search(addr)) { | |
//no more sensors on chain, reset search | |
ds.reset_search(); | |
return -1000; | |
} | |
if ( OneWire::crc8( addr, 7) != addr[7]) { | |
Serial.println("CRC is not valid!"); | |
return -1000; | |
} | |
if ( addr[0] != 0x10 && addr[0] != 0x28) { | |
Serial.print("Device is not recognized"); | |
return -1000; | |
} | |
ds.reset(); | |
ds.select(addr); | |
ds.write(0x44, 1); // start conversion, with parasite power on at the end | |
byte present = ds.reset(); | |
ds.select(addr); | |
ds.write(0xBE); // Read Scratchpad | |
for (int i = 0; i < 9; i++) { // we need 9 bytes | |
data[i] = ds.read(); | |
} | |
ds.reset_search(); | |
byte MSB = data[1]; | |
byte LSB = data[0]; | |
float tempRead = ((MSB << 8) | LSB); //using two's compliment | |
float TemperatureSum = tempRead / 16; | |
return TemperatureSum; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment