[Diy_efi] Re: DIY telemetry ...

[Sean Olson]

I don't know about a better transmitter, but as for a microcontroller you
probably can't get much cheaper in low quantities than with a PIC
(http://www.microchip.com).  I've started playing with the PIC 16F876
which has 8K words of flash program memory, 368 bytes of data RAM, 256
bytes of EEPROM data memory, 5 10 bit A/D converters, 3 timers, supports
clock speeds up to 20 MHz, and costs about $6 plus shipping in a 28 pin
SPDIP package from pioneer (http://www.ied.pios.com/).

As far as programming this PIC goes, it's pretty cheap and easy too.  I
built a simple parallel port programmer for about $20 inluding a ZIF
socket based off the schematic at http://www.finitesite.com/d3jsys/ .
Software for the programmer is free and available for both Windows and
Linux.  Free assembly compilers are also available for both Windows and
Linux.

Sean


On Fri, 28 Jun 2002, Santi Udomkesmalee wrote:

> I have to agree that this thread has taken an interesting direction.  I've
> decided to drop the forced induction idea for my rc car (which arrive
> yerterday by the way, I'll be tinkering away over the weekend for sure) and
> use my money to practice making telemetry systems.  I'm thinking of using
> the 8-bit transmitter from rentron (www.rentron.com) to start off with, but
> if any of you guys have any other suggestions, I'd love to hear them
> (especially if they can transmit larger than 8-bit packets, and are still
> cheap).  Also, if any of you guys could suggest a nice cheap microcontroller
> with built in a/d for the transmitter that would be nice too.  thanx
>
> -santi


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