Arduino EGT Sensor | Max 31855 Thermocouple Board

Today I walk you through how to setup and use the Max 31855 with a K-Type thermocouple that could be used as an EGT probe in a vehicle. This super simple setup is cheap and effective. You could display these values to an LCD or OLED screen in a vehicle. This is part of the larger project that I am working on my truck.
Stay tuned for more videos!
Tyler,
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Parts & Tools:
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K-Type Thermocouple: amzn.to/36woA3q
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Parts & Tools:
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Thermocouple Breakout Board: amzn.to/36E2ewX
K-Type Thermocouple: amzn.to/36vsWYu
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CONTACT ME:
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Adafruit Example Hookup and Code: learn.adafruit.com/thermocoup...
Code Start: /*
/***************************************************
This is an example for the Adafruit Thermocouple Sensor w/MAX31855K
Designed specifically to work with the Adafruit Thermocouple Sensor
---- www.adafruit.com/products/269
These displays use SPI to communicate, 3 pins are required to
interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
****************************************************/
#include "SPI.h"
#include "Adafruit_MAX31855.h"
// Default connection is using software SPI, but comment and uncomment one of
// the two examples below to switch between software SPI and hardware SPI:
// Example creating a thermocouple instance with software SPI on any three
// digital IO pins.
#define MAXDO 3
#define MAXCS 4
#define MAXCLK 5
// initialize the Thermocouple
Adafruit_MAX31855 thermocouple(MAXCLK, MAXCS, MAXDO);
// Example creating a thermocouple instance with hardware SPI
// on a given CS pin.
//#define MAXCS 10
//Adafruit_MAX31855 thermocouple(MAXCS);
void setup() {
Serial.begin(9600);
while (!Serial) delay(1); // wait for Serial on Leonardo/Zero, etc
Serial.println("MAX31855 test");
// wait for MAX chip to stabilize
delay(500);
}
void loop() {
// basic readout test, just print the current temp
Serial.print("Internal Temp = ");
Serial.println(thermocouple.readInternal());
double c = thermocouple.readCelsius();
if (isnan(c)) {
Serial.println("Something wrong with thermocouple!");
} else {
Serial.print("C = ");
Serial.println(c);
}
//Serial.print("F = ");
//Serial.println(thermocouple.readFahrenheit());
delay(1000);
}
*/ Code End

[@Gfunkbus76]

Looking forward to seeing your project development. I'm going to be doing similar to hopefully create a digital dash in my 70s VW bus.

[@OvensGarage]

Thanks for watching, I haven't touched it in a couple of weeks but hope to get back at it soon.

[@Gfunkbus76]

@@OvensGarage I've owned my bus for almost twenty years, driven it for two summers... I understand how things can be delayed lol. Good luck, will keep an eye out for new updates!

[@Gfunkbus76]

@@OvensGarage just did some testing on my EGT stuff. Thanks for extra motivation. Appreciate your videos and the quality... Mine is just a rambling video showing I did something lol. Yours can educate people lol!

[@sprtjnke]

Thanks for the tutorial. Just what I was looking for.

[@OvensGarage]

No problem! I need to get back on this project and finish it....

[@MikeFreda]

Good job to figure that out. Going to make one for my diesel Landcruiser.

[@OvensGarage]

Still need to install it in my truck...!

[@DANEMSPRINGER]

Im looking at doing this for my 6.0 Powerstroke to display the data on Torque Pro using Seeed Studio CAN-Bus Shield V2 Compatible with Arduino for Controller and Transceiver, as well as fuel pressure.
Thank you for sharing this!!!

[@OvensGarage]

Awesome, glad the video helped!

[@TheSchneidItworld]

wooow, that's gonna be useful, thanks!

[@McMelnor]

I already have a stand-alone egt gauge in my truck. Do you think it’s possible to pick up the signal from the thermocouple without interference with the gauge ?

[@skuuubasteve14]

I made one and love it. Used RGB and some logic so its green under 800, yellow till 1000, and red yellow flash over 1000f.

[@OvensGarage]

That's a great idea to implement into a project. Have you put it in a vehicle with this done?

[@skuuubasteve14]

@@OvensGarage yes I have. Also consider adding a light sensor. Mine was way too bright for me at night. Now it dims at night. I'll post up a vid of it in action.

[@travishanson166]

@@skuuubasteve14 can you share links to the components you used? What you built is almost exactly like what I would like to do.
Link to your video if its ready as well.

[@easthulk99]

@@skuuubasteve14 hai... do you have any vibration problem on your egt sensor that fluctuates the temperature reading???

[@skuuubasteve14]

@@travishanson166 its an arduino uno r3, a type k thermocouple widely available on ebay, I got one from a US shipper that came with a pipe tap and appropriately sized drill bit, max6675 Amplifier its a tiny little part available from adafruit as is the RGB backlight lcd screen. Thats all it is. If you want schematics or arduino code, feely free to send me an email: [e-mail]

[@ApolloTheDerg]

Duuude, what about also doing boost, trans temps, EGTS’s, and maybe temps for oil or coolant? Gauge pods are expensive and my 400k mile 7.3l is taking my money for other parts, but doing my own monitoring system would be dope, especially if I can do neat things with it

[@OvensGarage]

Take a look at my other videos, I've pretty much developed a stand alone way to read each of those and was working on a combined gauge system to monitor everything but I put the project aside.

[@ApolloTheDerg]

@@OvensGarage epic, didn’t get into too much researching today as I was slamming Ujoints but, it’s now on the list.

[@ThePoofdiggins]

Hey Tyler, I know it been awhile since these videos... I have been wanting to do this same thing on my 91 w350. Do you think this prodject would be possible with the raspberry pi?

[@OvensGarage]

Yes I think it would be possible, and probably better since the raspberry pi can operate faster than the arduino. I never ended up finishing this project but it was fun to tinker with. I think ultimately the route I want to go in my red truck is the banks idash down the road.

[@dedisetiawan6796]

Thanks for tutorial, it is very helpful, May I look the code for this? Thank you🤝

[@OvensGarage]

In the description

[@lancereyesromero7811]

Can I plug and use multiple egt? 5 to be exact for an inline 5. One in each exhaust port.

[@OvensGarage]

Yes, absolutely. You'll likely need a matching amount of amplifying circuit boards however.

[@cyberflaneur9127]

Have you put this in your vehicle? I just built a prototype EGT sensor to put into my jdm van. I am not sure how reliable the max31855 is going to be for this application.

[@OvensGarage]

I haven't put this in my vehicle yet but I don't suspect there will be any issues.

[@cyberflaneur9127]

@@OvensGarage this issue I was having is it sometimes reads a Nan result. I think if the probe has been grounded.

[@vwbeetle5578]

Is that the glow shift sensor?

[@OvensGarage]

Not sure what you mean. I bought all supplies from Amazon.

[@705richard]

You done prototyping your board yet????

[@OvensGarage]

I haven't touched it in a while... but it's still on my list.

[@TheSchneidItworld]

ohhh