Go Down

Topic: Newbie Help - Temperature sensors (Read 10800 times) previous topic - next topic

int2str

Oh, almost forgot about the relay board.
That is apparently 41mm x 51mm.

andy_con

Option 2 sounds good

I've got 5v but a regulator would be good stop any spikes from the psu when it first turns on

When the display turns on is it also possible to get NRG on the screen?

Logo at laserknowhow.co.uk if you want it

int2str

When the display turns on is it also possible to get NRG on the screen?
Logo at laserknowhow.co.uk if you want it


Technically no. The display is a 20x4 character display, it's not a graphical display with each pixel addressable individually.
That said, it supports 8 custom characters, that can be used for all softs of shenanigans :)

http://www.youtube.com/watch?v=XSOxB-0CNJ8

andy_con

that is fooking perfect, ill take 10 now ;-)

andy_con

been asked a question -

is the fan control PID controlled or does it just look for a set temperature

int2str

#35
Sep 02, 2013, 03:37 am Last Edit: Sep 02, 2013, 03:44 am by int2str Reason: 1
is the fan control PID controlled or does it just look for a set temperature


Since the relay is on/off, and based on your initial request, it triggers on a set temperature. I currently have it toggle only every 10 seconds to avoid rapid on/off pulses in case the temperature is right on the edge.

Btw. do you have any info on the fans?
Are they 2 wire or three?

Maybe we should actually do this:
Wire 12v directly to the controller board. I'll put in a voltage regulator to get 5V to the MCU and use a transistor to toggle the fans using 12v PWM to control speed.

Let me know if you want to do that instead.
And let me know what you know about the fans.

andy_con

Ok thanks

If you think that's the best way then fine we can do it like that.

The Fans I Use are just a couple of 60mm computer fans, but if I sell this it would be good if it worked with various fans.

What info do you need?

andy_con

#37
Sep 02, 2013, 10:01 am Last Edit: Sep 02, 2013, 01:24 pm by andy_con Reason: 1
Sorry two wires, just a + and -

andy_con


is the fan control PID controlled or does it just look for a set temperature


Maybe we should actually do this:
Wire 12v directly to the controller board. I'll put in a voltage regulator to get 5V to the MCU and use a transistor to toggle the fans using 12v PWM to control speed.

Let me know if you want to do that instead.
And let me know what you know about the fans.


am now on a computer and not my phone, this sounds like a good idea and people have said this would be a better way.

but providing im not limited to certains fans then great. all computers fans are 12v its just the amps that change.

when do you think i could get a working prototype?

cheers

Go Up