Re: ultra-newbie: picking a first microcontroller?
- From: mrdarrett@xxxxxxxxx
- Date: 9 Jun 2006 11:20:12 -0700
Jan Wagner wrote:
mrdarrett@xxxxxxxxx wrote:
I'd like to build an embedded device that takes in a thermocouple
input, and then, if the temperature is below the user-specified set
point, activates a relay (which would power an electric heater), and
then, when the thermocouple senses the temperature has reached / is
greater than the set point, de-energizes the relay.
Sounds more like a simple LM393 comparator and potentiometer plus some
small-parts project to me! :-) With an uC you'd have to use an ADC to
read out the thermocouple circuit voltage. A uC project could be more
interesting, though.
I've got some experience with assembler (80386) and C.
I was thinking of going with the Atmel ATTINY12-8PC (only 8 pins, and
a whopping 1kb of flash RAM, just $1.55 at Jameco), but then I read on
the newsgroups that finding a programmer for this is impossible... is
this true?
There are very simple serial port programmers for attiny and atmega.
There are also parallel port versions. Google for "Low Cost Programmer
for AVR microcontroller", or see the stk200 manual link Jasen posted.
Ooh, look what I found...
http://www.serasidis.gr/circuits/avrprog/avrprog.htm
Thanks for all the help...
Michael
.
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