SMILEY’S WORKSHOP ☺
Bill of Materials
ITEM Supplier/PN
■ AVR Butterfly Digi-Key/ATAVRBFLY
■ CdS LDR Digi-Key/PDV-P9005-1
■ Two 2x5-pin header Digi-Key/S7108
■ Four-pin header Digi-Key/S71035
■ Two-pin header Digi-Key/S71037
ITEM
■ 3” Wire AWG 22
■ 2.2K ohm
■ Two-AA Bat. Box
■ DB- 9 Female Ctr.
■ Green LED
Supplier/PN
Jameco/36792
Jameco/690742CG
Jameco/216119CG
Circuit Specialists/DE-09S
Circuit Specialists/
BAG-GREEN3MM
working okay by two methods.
A simple test is to turn the power off
on the Butterfly and then WITH THE
JOYSTICK BUTTON PRESSED TO
THE CENTER, turn the power back
on. Now each time you press the
joystick button to the center, you
should see a series of question marks
(???????) in the Simple Terminal
receive window. This is the Butterfly
bootloader wondering what the heck
is going on.
Another test is to turn the
Butterfly on and click the joystick up
to get the LCD scrolling. Move the
joystick straight down three times till
you see ‘Name,’ then move the
joystick to the right twice till you see
‘Enter name.’ Move the joystick
straight down once and you will see
‘Download name,’ then push down
the joystick center for a moment until
you see ‘Waiting for input.’
In Developer Terminal, make
sure the ‘Send Text: Immediate’ radio
button is checked. Type in your
name, then in the ‘Send HEX
Immediate’ dropdown box, select
and click on 0x0D that tells the
Butterfly you are finished sending
characters. Your name should appear
on the LCD.
This isn’t easy and there are
many opportunities to mess up along
the way. Many folks get this going
right away, but others seem to have
fits getting over this hurdle, so I’ve
provided a Workshop 1 Supplement:
Problems Communicating with the
Butterfly (on www.nutsvolts.com) to
help you get past this point. Trust me,
if you see the or get your name
scrolling on the LCD, you are over
a major hump and subsequent
workshops will be easier to get going
than this step.
Well, that was a lot and we
haven’t really gotten started yet. Next
month, we will look at the software
side of the AVR Learning Platform
and learn about the AVRStudio IDE
and the WinAVR C compiler toolset.
We’ll write our first C program
and create a set of Cylon Eyes in
hardware. NV
The Standard for checking
Capacitors in-circuit
Good enough to be the
choice of Panasonic,
Pioneer, NBC, ABC, Ford,
JVC, NASA and thousands
of independent service
technicians.
Locate shorted or leaky
components or conditions
to the exact spot in-circuit
Still cutting up the pcb,
and unsoldering every
part trying to guess at
where the short is?
$209
Your DVM shows the same shorted reading all
along the pcb trace. LeakSeeker 82B has the
resolution to find the defective component.
And with a 60 day trial period, satisfaction Touch pads along the trace, and LeakSeeker
guaranteed or money-back policy, the only beeps highest in pitch at the defect’s pad. Now
thing you can lose is all the time you’re you can locate a shorted part only a quarter of
currently spending on trying to repair all an inch away from a good part. Short can be
those dogs you’ve given up on. from 0 to 150 ohms
CapAnalyzer 88A LeakSeeker 82B
Available at your distributor, or call 561-487-6103
Electronic Design Specialists www.eds-inc.com
Inexpensive enough to pay for itself in just
one day’s repairs. At $209, it’s affordable.
August 2008 65