Multiple OneWire Sensors Multiple Pins

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2022-06-12 at 12:30 PM #17096

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I would like to monitor temperature, of water, ground and air. I was thinking of building one wired sensor to the water, then another wired sensor to ground and air. Thus I would need two OneWire

I would like to monitor temperature, of water, ground and air. I was thinking of building one wired sensor to the water, then another wired sensor to ground and air. Thus I would need two OneWire Bus Pins, .and the one OneWire Bus pin would have two sensors attached.

Using a few Arduino Example sketches I can get this to work and read, multiple sensors on multiple buses, using unique addresses.

However in the ModularSensors a_la_cart example it just has 1 sensor on 1 bus. I have tried adding an changing some of the const but but cant get to compile.

How do I change the code to have multiple sensors… and

How do I change the code to have multiple OneWire Buses

Thanks Ron

// ==========================================================================
  //    Maxim DS18 One Wire Temperature Sensor
  // ==========================================================================
  #include <sensors/MaximDS18.h>

  // OneWire Address [array of 8 hex characters]
  // If only using a single sensor on the OneWire bus, you may omit the address
  DeviceAddress OneWireAddress1 = {0x28, 0xA9, 0xDB, 0x49, 0xF6, 0x16, 0x3C, 0x8E};
  // DeviceAddress OneWireAddress2 = {0x28, 0xB3, 0x54, 0x49, 0xF6, 0x47, 0x3C, 0x0D};
  const int8_t OneWirePower = sensorPowerPin;  // Pin to switch power on and off (-1 if unconnected)
  const int8_t OneWireBus = 5;  // Pin attached to the OneWire Bus (-1 if unconnected) (D24 = A0)
  const int8_t ds18NumberReadings = 3;

  // Create a Maxim DS18 sensor objects (use this form for a known address)
  MaximDS18 ds18(OneWireAddress1, OneWirePower, OneWireBus);

  // Create a Maxim DS18 sensor object (use this form for a single sensor on bus with an unknown address)
  //MaximDS18 ds18(OneWireAddress1, OneWirePower1, OneWireBus1, ds18NumberReadings1);
  


  new MaximDS18_Temp(&ds18, "bus5"),

// ==========================================================================

// Maxim DS18 One Wire Temperature Sensor

// ==========================================================================

#include <sensors/MaximDS18.h>

// OneWire Address [array of 8 hex characters]

// If only using a single sensor on the OneWire bus, you may omit the address

DeviceAddress OneWireAddress1 = {0x28, 0xA9, 0xDB, 0x49, 0xF6, 0x16, 0x3C, 0x8E};

// DeviceAddress OneWireAddress2 = {0x28, 0xB3, 0x54, 0x49, 0xF6, 0x47, 0x3C, 0x0D};

const int8_t OneWirePower = sensorPowerPin; // Pin to switch power on and off (-1 if unconnected)

const int8_t OneWireBus = 5; // Pin attached to the OneWire Bus (-1 if unconnected) (D24 = A0)

const int8_t ds18NumberReadings = 3;

// Create a Maxim DS18 sensor objects (use this form for a known address)

MaximDS18 ds18(OneWireAddress1, OneWirePower, OneWireBus);

// Create a Maxim DS18 sensor object (use this form for a single sensor on bus with an unknown address)

//MaximDS18 ds18(OneWireAddress1, OneWirePower1, OneWireBus1, ds18NumberReadings1);