<s>
PICAXE	B-Device
is	O
a	O
microcontroller	B-Architecture
system	O
based	O
on	O
a	O
range	O
of	O
Microchip	B-Architecture
PIC	I-Architecture
microcontrollers	B-Architecture
.	O
</s>
<s>
PICAXE	B-Device
devices	O
are	O
Microchip	B-Architecture
PIC	I-Architecture
devices	O
with	O
pre-programmed	O
firmware	O
that	O
enables	O
bootloading	O
of	O
code	O
directly	O
from	O
a	O
PC	O
,	O
simplifying	O
hobbyist	O
embedded	O
development	O
(	O
not	O
unlike	O
the	O
Arduino	O
and	O
Parallax	O
BASIC	B-Language
Stamp	I-Language
systems	O
)	O
.	O
</s>
<s>
PICAXE	B-Device
devices	O
have	O
been	O
produced	O
by	O
Revolution	O
Education	O
(	O
Rev-Ed	O
)	O
since	O
1999	O
.	O
</s>
<s>
There	O
are	O
currently	O
six	O
(	O
6	O
)	O
PICAXE	B-Device
variants	O
of	O
differing	O
pin	O
counts	O
(	O
8-14-18-20-28-40	O
)	O
and	O
are	O
available	O
as	O
DIL	B-Algorithm
and	O
SMD	O
.	O
</s>
<s>
PICAXE	B-Device
microcontrollers	B-Architecture
are	O
pre-programmed	O
with	O
an	O
interpreter	B-Application
similar	O
to	O
the	O
BASIC	B-Language
Stamp	I-Language
but	O
using	O
internal	O
EEPROM	O
instead	O
,	O
thus	O
reducing	O
cost	O
.	O
</s>
<s>
This	O
also	O
allows	O
downloads	O
to	O
be	O
made	O
with	O
a	O
simple	O
serial	O
connection	O
which	O
eliminates	O
the	O
need	O
for	O
a	O
PIC	B-General_Concept
programmer	I-General_Concept
.	O
</s>
<s>
PICAXE	B-Device
is	O
programmed	O
using	O
an	O
RS-232	O
serial	O
cable	O
or	O
a	O
USB	O
cable	O
which	O
connects	O
a	O
computer	B-Device
to	O
the	O
download	O
circuit	O
,	O
which	O
normally	O
uses	O
a	O
3.5	O
mm	O
jack	O
and	O
two	O
resistors	O
.	O
</s>
<s>
PICAXE	B-Device
microcontrollers	B-Architecture
are	O
programmed	O
using	O
BASIC	O
.	O
</s>
<s>
The	O
PICAXE	B-Device
interpreter	B-Application
features	O
bit-banged	B-Algorithm
communications	O
:	O
</s>
<s>
The	O
"	O
readtemp	O
"	O
command	O
reads	O
the	O
temperature	O
from	O
a	O
DS18B20	O
temperature	O
sensor	O
and	O
converts	O
it	O
into	O
Celsius	B-Operating_System
.	O
</s>
<s>
All	O
current	O
PICAXEs	B-Device
have	O
commands	O
for	O
using	O
hardware	O
features	O
of	O
the	O
underlying	O
PIC	B-Architecture
microcontrollers	I-Architecture
:	O
</s>
<s>
All	O
current	O
PICAXE	B-Device
chips	O
have	O
at	O
least	O
2048	O
bytes	B-Application
of	O
on	O
board	O
program	O
memory	O
available	O
for	O
user	O
programs	O
:	O
</s>
<s>
Project	O
boards	O
for	O
different	O
applications	O
are	O
sold	O
by	O
Rev-Ed	O
which	O
contain	O
the	O
PICAXE	B-Device
,	O
download	O
circuit	O
and	O
may	O
also	O
contain	O
a	O
prototyping	O
area	O
or	O
high	O
power	O
output	O
drivers	O
.	O
</s>
<s>
Revolution	O
Education	O
develop	O
software	O
for	O
writing	O
programs	O
for	O
PICAXE	B-Device
.	O
</s>
<s>
PICAXE	B-Device
Programming	O
Editor	O
is	O
a	O
Windows-only	O
IDE	B-Application
for	O
writing	O
PICAXE	B-Device
programs	O
in	O
BASIC	O
code	O
or	O
a	O
simple	O
flowchart	O
.	O
</s>
<s>
PICAXE	B-Device
Programming	O
Editor	O
features	O
:	O
</s>
<s>
AXEpad	O
is	O
a	O
cross-platform	O
application	O
recommended	O
for	O
Linux	B-Application
and	O
Mac	B-Application
users	O
.	O
</s>
<s>
Logicator	O
is	O
an	O
easy	O
to	O
use	O
shareware	B-License
flowcharting	O
program	O
.	O
</s>
<s>
PICAXE	B-Device
Programming	O
Editor	O
6	O
,	O
the	O
successor	O
to	O
PICAXE	B-Device
Programming	O
Editor	O
5	O
,	O
has	O
Logicator	O
flowcharting	O
merged	O
into	O
it	O
so	O
separate	O
Logicator	O
software	O
is	O
no	O
longer	O
required	O
.	O
</s>
<s>
Like	O
PICAXE	B-Device
Programming	O
Editor	O
5	O
,	O
PICAXE	B-Device
Programming	O
Editor	O
6	O
is	O
freeware	O
.	O
</s>
<s>
Support	O
is	O
available	O
at	O
the	O
Technical	O
Support	O
section	O
of	O
the	O
PICAXE	B-Device
website	O
and	O
at	O
the	O
PICAXE	B-Device
Forum	O
.	O
</s>
<s>
The	O
PICAXE	B-Device
Forum	O
has	O
a	O
finished	O
projects	O
section	O
where	O
completed	O
projects	O
and	O
PICAXE	B-Device
programs	O
are	O
posted	O
,	O
plus	O
there	O
is	O
a	O
similar	O
section	O
on	O
the	O
PICAXE	B-Device
website	O
.	O
</s>
