[K3PZN-List] Microcontrollers

[Kilroy, Patrick L. (GSFC-5680)]

Hi Eric,

Long time, no hear -- or see!  

Thank you for your post.  

I am using the PICAXE 28X1 in the PICetSat II 
module, using all four A/D converter inputs, 
sensing two temperatures (IAT and OAT) at 
altitude, the battery voltage, and the altitude 
(or pressure) sensor.  The telemetry also 
includes a sequential frame number (poor man's 
MET or TOD clock), a sensor calibration check, 
a simple checksum, either a message/greeting 
to all or name of sponsor or flight group/
school ID, and of course callsign in 10 WPM CW.  

To the point, it works well.  But the next 
series of design developments on the module 
will include a telemetry output in PSK31, RTTY, 
Packet AX.25 or ???  I don't know YET if the 
PICAXE 28X1 (generic PIC16F886) or 28X2 or other 
PICAXEs can output those required tones on their 
own, like I think I heard certain Arduino micro-
controller can.  

My microcontroller selection for the PICetSat 
upgrade is a task for this summer and I can 
really use your input and the input from others 
for help as well.  Thoughts?  

What are YOU trying to do with a microcontroller?  
Please share with the CCARC list group.  

Thanks,

Pat
N8PK


Mr. Patrick L. Kilroy
Integration & Test Manager
NASA Goddard Space Flight Center
Building 5, Mail Code 568
Greenbelt, Maryland 20771
Phone: +1-301-286-1984
E-mail: Patrick.L.Kilroy at nasa.gov
Web: http://patkilroy.com/simsat/3/ (outreach)
AMSAT-DC: http://patkilroy.com/amsat-dc/


From: k3pzn-list-bounces at mailman.qth.net 
Sent: Monday, April 13, 2009 12:01 PM
To: k3pzn-list at mailman.qth.net
Subject: K3PZN-List Digest, Vol 63, Issue 7

I have a couple of Arduino board kits if you'd like to play with one.  N3SB 
and N3III had a Saturday morning get together last year at the FTC where a 
number of club members built the kits and learned how to generate and upload 
simple programs.  I used the Arduino to control the Si570 programmable 
crystal oscillator and an Analog Devices AD9851 DDS.  I think N3SB was 
playing with building a packet TNC with the Arduino or possibly an advanced 
version of the Arduino.

-Pete, W3GVX


From: "Eric Krichinsky" <kb3hkg at yahoo.com>
To: "k3pzn" <k3pzn-list at mailman.qth.net>
Sent: Sunday, April 12, 2009 2:08 PM
Subject: [K3PZN-List] Microcontrollers

> I know people in the club have done work with the PICAXE microcontroller 
> in the past. Just wondering if anyone has any opinions or advice about the 
> Arduino platform.
>
> Eric Krichinsky
> KB3HKG