Subject: PIC vs. PICAXE
From: Rotary Engine
Date: 3/2/2007, 7:08 AM
To: AARotary Engine



Well, I was mistaken. PIC only offers assembler and C. There are other
tools available, but not directly available from them.

Unless things get very complicated you are better off with the PICAXE IMHO.

Doc Custer
Retired Software Engineer and sometime Audiologist

I agree Doc. I am a bit disappointed in the lack of in line
assembler code. PICAXE brush it off as bad programming.

Do you know how to convert a 4 character ASCII decimal number
into a 16 bit binary number in PICAXE BASIC?

I can do it in ASM by masking the high 4 bits, shifting left
the lower four bits and anding the digits.

This is for the heading auto pilot that gets in heading info
from the GPS in ASCII characters. 189.1 degrees for an example.
Here is the ASCII binary codes. I need a binary number to control
the aileron servo.

Dec      Binary         Hex    ASCII
48     00110000     30h     0
49     00110001     31h     1
50     00110010     32h     2
51     00110011     33h     3
52     00110100     34h     4
53     00110101     35h     5
54     00110110     36h     6
55     00110111     37h     7
56     00111000     38h     8
57     00111001     39h     9

BTW the PICAXE would make a great waste gate or boost controller for
all those turbo guys out there. An intake air temp sensor as well
as the MAP sensor could be used to back off on the boost when
the intake  air temp. gets over 140 degrees F to prevent detonation.

Paul Lamar ...No rotor no motor.

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