Yetti

$100 Engine Montitor

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I picked up the Node-Red bug again.   Node-Red is a visual coding wiring together of things.   Building on the Raspberry PI.  

I need 8 Thermocouple to monitor the engine.  

We need to convert the analog thermocouple signal to digital

 

15182073112034359411681177589409.jpg

Edited by Yetti

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Lessee, 8 thermocouples . . .

  • 4 EGT
  • 4 CHT
  • Oil Temp
  • Carb temp (for me, anyway)
  • OAT

Oops, one of us cain't count!

Will it handle Pressure Transducers for Oil, Fuel and Manifold Pressure? And so ething for Fuel Flow?

That's all I need . . . . Got a fresh, crisp Franklin for a finished unit that looks neat and works.  :lol:

Seriously, I didn't realize the Build-Your-Own Raspberry Pi craze went quite this far. But I could be convinced to like it!

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We????   I know about "we" and that usually means many.....  and a phase that starts out "hey watch this"     I would check mouser electronics or omega systems.

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1 hour ago, Hank said:

Lessee, 8 thermocouples . . .

  • 4 EGT
  • 4 CHT
  • Oil Temp
  • Carb temp (for me, anyway)
  • OAT

Oops, one of us cain't count!

Will it handle Pressure Transducers for Oil, Fuel and Manifold Pressure? And so ething for Fuel Flow?

That's all I need . . . . Got a fresh, crisp Franklin for a finished unit that looks neat and works.  :lol:

Seriously, I didn't realize the Build-Your-Own Raspberry Pi craze went quite this far. But I could be convinced to like it!

Oh you want the advanced version that will be $150.00 and released in version 2.   dang free loaders causing scope creep

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  • Haha 1

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3 hours ago, Dream to fly said:

We????   I know about "we" and that usually means many.....  and a phase that starts out "hey watch this"     I would check mouser electronics or omega systems.

going the CB route and 2 day delivery off Amazon prime for development, then can switch to certified probes once it is working.   Only thing cheap about a plane is the pilot

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Getting oil T, comes with an additional challenge...

the existing probe is a thermistor...

There are other locations that can use a TC, but they are in a different place...

Classic ship's gauge vs other gauge challenge ...

PP thoughts only...

Best regards,

-a-

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sensor -> amplifier(analog to digital) -> Raspberry PI -> I2C to read digital input -> webpage -> wifi -> tablet ->  eyeball -> brain -> hand -> throttle/mixture -> fuel servo

Mostly following the Stratux route replacing Google code with Node-red

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The millivolt thermocouple outputs do need buffering & amplification before you apply them to ADC inputs.  

 

 

 

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How does data go back and forth to a web page from cruise altitude, in the boonies, or where I often fly which is at altitude over the boonies?

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You add a web server to raspberry PI computer.   the web server then serves up a web page to your network created over the wifi in your airplane

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When did this site start posting in a foreign language.  I think someone mentioned eating Raspberry Pie.  I'll take mine a' la mode.:D

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Another blow against the certified avionics-industrial complex in the making I hope.

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5 hours ago, Yetti said:

You add a web server to raspberry PI computer.   the web server then serves up a web page to your network created over the wifi in your airplane

Thanks. That's clear . . . ly semi-intelligible. I can figure out most things that I can hold in my hands, but electrons are too small and often behave in unpredictable manners (see capacitors, diodes and transistors; see also induced current; see also my grades in required EE courses . . . . )

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I work with engineers all day long, sometimes they do better with pictures

 

overview.jpg

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You can use an arduino, they already have thermocouple amplifiers you can order, it can do the web server but not the hdmi, you can also save to an sdcard. It’s designed for analog,digital sensors.

 

db95d98b60196de3cc0df643cab89a0d.jpg

 

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The SDO SDK pins on that board is the I2C that I am currently working with bringing in and displaying

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I work with engineers all day long, sometimes they do better with pictures
 
overview.thumb.jpg.e4c907112ba3f4c501672712cddf0b1e.jpg
That was priceless. Sorry couldn't help myself.


Sent from my E6810 using Tapatalk

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Before someone brings up the certified aircraft thing.    Does anyone have the Garmin G1000 sensor part list?  Since those were installed at the factory they should be good for any Mooney under the TDS.

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