/***************************************************************************
- File Name: SEN30006_MAX31856_example.ino
- Processor/Platform: Arduino Uno R3 (tested)
- Development Environment: Arduino 1.8.3
-
- Designed for use with with Playing With Fusion MAX31856 thermocouple
- breakout boards: SEN-30005 (any TC type) or SEN-30006 (any TC type)
-
- Copyright © 2015-18 Playing With Fusion, Inc.
- SOFTWARE LICENSE AGREEMENT: This code is released under the MIT License.
-
- Permission is hereby granted, free of charge, to any person obtaining a
- copy of this software and associated documentation files (the "Software"),
- to deal in the Software without restriction, including without limitation
- the rights to use, copy, modify, merge, publish, distribute, sublicense,
- and/or sell copies of the Software, and to permit persons to whom the
- Software is furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- DEALINGS IN THE SOFTWARE.
- REVISION HISTORY:
- Author Date Comments
- J. Steinlage 2015Aug10 Baseline Rev, first production support
- J. Steinlage 2018Jul10 Removed DR and FLT pins - nobody uses them
-
- Playing With Fusion, Inc. invests time and resources developing open-source
- code. Please support Playing With Fusion and continued open-source
- development by buying products from Playing With Fusion!
- ADDITIONAL NOTES:
- This file contains functions to initialize and run an Arduino Uno R3 in
- order to communicate with a MAX31856 single channel thermocouple breakout
- board. Funcionality is as described below:
-
- Configure Arduino to broadcast results via UART
- call PWF library to configure and read MAX31856 IC (SEN-30005, any type)
-
- Broadcast results to COM port
- Circuit:
- Arduino Uno Arduino Mega --> SEN-30005
- DIO pin 10 DIO pin 10 --> CS0
- MOSI: pin 11 MOSI: pin 51 --> SDI (must not be changed for hardware SPI)
- MISO: pin 12 MISO: pin 50 --> SDO (must not be changed for hardware SPI)
- SCK: pin 13 SCK: pin 52 --> SCLK (must not be changed for hardware SPI)
- D03 '' --> FAULT (not used in example, pin broken out for dev)
- D02 '' --> DRDY (not used in example, only used in single-shot mode)
- GND GND --> GND
- 5V 5V --> Vin (supply with same voltage as Arduino I/O, 5V)
NOT CONNECTED --> 3.3V (this is 3.3V output from on-board LDO. DO NOT POWER THIS PIN!
***************************************************************************/
#include <PWFusion_MAX31856.h>
uint8_t TC0_CS = 10;
MAX31856 thermocouple0;
void setup()
{
// Give the MAX31856 a chance to stabilize
delay(1000);
Serial.begin(115200); // set baudrate of serial port
Serial.println(F("Playing With Fusion: MAX31856, SEN-30005"));
// call config command... options can be seen in the PWFusion_MAX31856.h file
thermocouple0.begin(TC0_CS);
thermocouple0.config(K_TYPE, CUTOFF_60HZ, AVG_SEL_1SAMP, CMODE_AUTO);
}
void loop()
{
delay(150); // 150ms delay... can be as fast as ~100ms in continuous mode, 1 samp avg
// Get latest measurement from MAX31856 channel 0
thermocouple0.sample();
// Print information to serial port
print31856Results(0, thermocouple0);
Serial.println();
}
void print31856Results(uint8_t channel, MAX31856 &tc)
{
uint8_t status = tc.getStatus();
Serial.print("Thermocouple ");
Serial.print(channel);
if(status)
{
// lots of faults possible at once, technically... handle all 8 of them
// Faults detected can be masked, please refer to library file to enable faults you want represented
Serial.print(F(": FAULTED - "));
if(TC_FAULT_OPEN & status) { Serial.print(F("OPEN, ")); }
if(TC_FAULT_VOLTAGE_OOR & status) { Serial.print(F("Overvolt/Undervolt, ")); }
if(TC_FAULT_TC_TEMP_LOW & status) { Serial.print(F("TC Low, ")); }
if(TC_FAULT_TC_TEMP_HIGH & status){ Serial.print(F("TC High, ")); }
if(TC_FAULT_CJ_TEMP_LOW & status) { Serial.print(F("CJ Low, ")); }
if(TC_FAULT_CJ_TEMP_HIGH & status){ Serial.print(F("CJ High, ")); }
if(TC_FAULT_TC_OOR & status) { Serial.print(F("TC Range, ")); }
if(TC_FAULT_CJ_OOR & status) { Serial.print(F("CJ Range, ")); }
Serial.println();
}
else // no fault, print temperature data
{
Serial.println(F(": Good"));
// MAX31856 External (thermocouple) Temp
Serial.print(F("TC Temp = ")); // print TC temp heading
Serial.println(tc.getTemperature());
}
// MAX31856 Internal Temp
Serial.print(F("Tint = "));
float cjTemp = tc.getColdJunctionTemperature();
if ((cjTemp > -100) && (cjTemp < 150))
{
Serial.println(cjTemp);
}
else
{
Serial.println(F("Unknown fault with cold junction measurement"));
}
Serial.println();
}
