[chbot] Simple robot programming

[jimmy allen]

i know that is why i moved on from them
by way are you a member on bright sparks because your name looks familiar

On 6/30/09, timothy manning <tfhmanning at gmail.com> wrote:
> Hi Jimmy
>
> The problem with Picaxes is it's very limited and not expandable.
> It is also very expensive. If you want a BASIC lanuguage then use an
> AVR and run BASCOM on it.
> This way you can upgrade to C with out changing your controller board
> and it's very cheap compared to a Picaxe.
>
> -Timothy
>
>
>
> On Tue, Jun 30, 2009 at 5:43 PM, jimmy allen<jimmy1248 at gmail.com> wrote:
>> have any of you use picaxe system
>> it is good for beginners as you can write up programs using flow
>> charting or the basic language
>> you can write up fairly complex projects
>>
>>
>> On 6/30/09, Morris <skibear at gmail.com> wrote:
>>> I love ladder logic and had been thinking about it!
>>>
>>> Ladder logic is functional programming (which will make Paul Davey
>>> happy!).
>>>
>>> Ladder logic has an obvious DHTML web interface for it (that said I am
>>> not volunteering to do that because I do Ajax web development for my
>>> job :) but given how common it is I would hope there is something free
>>> out there already. I personally am attempting to avoid requiring
>>> anything installed on a PC, that way web-phones can be used for
>>> development and for remote control, and also so there is no dependency
>>> on having either Windows or Linux installed.
>>>
>>> Charles, I am very keen to hear what you find out - especially if it is
>>> web based open-source (Python would be perfect, but PHP, Ruby, Lua, Perl
>>> or Linux CGI apps can all be hosted on the wifi router web server -
>>> probably even DOS apps in DOSBox).
>>>
>>> Simon - is that a volunteer I hear! ;)
>>>
>>> Cheers
>>>
>>> Morris.
>>>
>>> On Tue, 2009-06-30 at 10:22 +1200, Simon Knopp wrote:
>>>
>>>> That project looks interesting. I agree, ladder logic is a good way to
>>>> get started with programming simple robots.
>>>>
>>>> What would really make a tool such as that powerful would be the
>>>> ability to create functional blocks, either of ladder logic or code. A
>>>> block of ladder logic would allow higher level commands like in
>>>> Mindstorms---"turn 90º left" or "move forward for 1 second". A block
>>>> of code (much like PLCs' structured text) could allow one to write a
>>>> function in C (for example) and have it represented as a block within
>>>> the ladder logic environment. These blocks could be created by anyone
>>>> who knows the language and distributed easily to those that don't.
>>>>
>>>> I know I'm sort of just describing what PLCs can already do, but to my
>>>> (relatively uninformed :-) mind it wouldn't be too difficult a feature
>>>> to implement into a system like that you linked to and would make more
>>>> powerful programming with ladder logic feasible and accessible to more
>>>> people.
>>>>
>>>> Just my two cents worth.
>>>> Simon.
>>>>
>>>>
>>>> On 29/06/2009, at 9:55 PM, Charles Manning wrote:
>>>>
>>>> > Morris and I had a very interesting conversation about simplifying
>>>> > robot programming.
>>>> >
>>>> > Many people are drawn to Mindstorms-like drag and drop programming.
>>>> > This is indeed a simple way to do very simple programming (but is
>>>> > hopeless for anything of reasonable complexity). These tools are also
>>>> > no open source or free.
>>>> >
>>>> > Fortuitously I got into a discussion with Timothy about PLC "ladder
>>>> > logic" programming. This could be a simple way to do very simple
>>>> > programs. There are a few very interesting open source ladder logic
>>>> > projects out there that compile a ladder and generate a "byte code"
>>>> > which runs on a tiny interpreter. These can be simple enough to run on
>>>> > a small AVR, moderate PIC, Linux box etc. Anything that can eat C.
>>>> >
>>>> > Ladder logic is a graphical representation of an electrical circuit
>>>> > that operates on inputs and outputs
>>>> > eg.
>>>> >  |     IN1   IN2  OUT1  |
>>>> > +-----[ ]---[ ]---( )------+
>>>> > |                                |
>>>> >
>>>> > If IN1 is on and IN2 is on then turn on output 1.
>>>> >
>>>> > Better descriptions in http://en.wikipedia.org/wiki/Ladder_logic
>>>> >
>>>> > A ladder logic tool I'm going to look at more is at
>>>> > http://www.cq.cx/ladder.pl
>>>> >
>>>> > --Charles
>>>> >
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>>
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