Typ K Thermocouple to RGB LED

Forum 2005-2010 (read only) General Exhibition
1

Hello,

for some the multidisplay is a little overloaded, so here is a minimalistic

"Typ K Thermocouple to RGB LED"

Thing :sunglasses:

It measures the Temperature (Ambient to 1350°C above Ambient) and makes a colorchange at adjustable setpoints (the 3 adjust potentiometers are missing in the pictures)

it has:

Its my first full SMD pcb, at only 30x50mm it was not so easy to solder and took some time until it worked ::slight_smile:

And with the status LED on:

The Code for it is not finished, currently i only have some blinking going on there. But to get the Arduino IDE to make some usable code for running with the internal clock the timers needs to be set different.

in the Setup this must be inserted:

TCCR0B = 0x01;   // Timer 0: PWM 5 &  6 
TCCR1B = 0x01;   // Timer 1: PWM 9 & 10 
TCCR2B = 0x01;   // Timer 2: PWM 3 & 11

like this the PWM is ok for the LED´s and the delay function is about right, at least enough for this project...

I have the Schematic and Layout as Target file, if somebody wants it send me a PM with the email and i will send it :slight_smile:

Steff

2

its finished: :sunglasses:

Code / Layout and more on my Website: TypK to RGB Led

3

Cool Stuff... I just started playing with the type K thermocouples myself and created this break out board last night.

4

depending on what temperature range you want the MAX6674 is ok :slight_smile:

just for the 0-128°C range i think are cheaper sensors around, or?

5

Yeah, this one is for a Laminator heater sensor. The next one I do is for a 2000 degree Kiln... using the "other" MAXIM thermocouple IC.

6

first usefull installation:

its a exhaust temp display, with the idea of an OEM Style look!

looks and works well :sunglasses:

7

What format is the schematic and layout file in (t3001)? How do I open it?

8

Manifolds are glowing at 1300F -- at 1500F you can see exhaust pulses through the iron when in a dim test cell. Manifold cracking test -- load the diesel engine to full load and bleed off compressor air to achieve a stable 1500F exhaust gas temp for x minutes then unload the engine, reduce rpm to low idle and blow compressed cold air on the manifolds to cool them rapidly to xxx degrees for x minutes and then do it again for 1500 cycles. Pass it and the design is good for ...

9

adds exhaust temperature display to the project list

D2K2... awesome work there matey :slight_smile:

Your projects are in the whole going to be going into my car, lol.

10

t3001 is an Target Format: http://www.ibfriedrich.com/

the engines we run have EGT´s up to 950°C (1742°F) and no issues at all :slight_smile:

but they will never run so much harsh cycles, way to much money spend for that...