URGENT!! help needed
- Thread starter rhysgj123
- Start date
hippy
Ex-Staff (retired)
Welcome to the PICAXE forum.
When you say you are "desperate", how much of the project have you attempted or completed, how far have you got, what works, what are you up against the wall with, and what previous PICAXE, electronics and robot vehicle experience do you have ?
There is quite a lot to that project but it can all be broken down into smaller parts, all of which can be managed individually and brought together as a whole.
How urgent is your requirement ? Is it a school project or coursework ?
When you say you are "desperate", how much of the project have you attempted or completed, how far have you got, what works, what are you up against the wall with, and what previous PICAXE, electronics and robot vehicle experience do you have ?
There is quite a lot to that project but it can all be broken down into smaller parts, all of which can be managed individually and brought together as a whole.
How urgent is your requirement ? Is it a school project or coursework ?
BeanieBots
Moderator
Also, you give very specific distances and then say it must be controlled by IR.
What needs to be controlled by IR? The distance?, the speed?, both?
Maybe direction?
What needs to be controlled by IR? The distance?, the speed?, both?
Maybe direction?
Which book Rhys?
Have you quadruple-checked your circuit?
Remember, even with the most powerful Ebay crystal balls we still can't see how you've put your circuit together.
Have you 'borrowed' test code from somewhere?
Can you post it?
I take it you are new to all this and this is a school project which should have been finished last week?
Can you get any help from your teacher/tutor?
Have you quadruple-checked your circuit?
Remember, even with the most powerful Ebay crystal balls we still can't see how you've put your circuit together.
Have you 'borrowed' test code from somewhere?
Can you post it?
I take it you are new to all this and this is a school project which should have been finished last week?
Can you get any help from your teacher/tutor?
@rhys.
There is a mistake in the book.
I'm not allowed to photocopy the book,
so please read these instructions carefully.
1.Look at page 143.
2. There is a connection missing.
Look at Leg 6.
There should be a connection to the middle of the 10k potentiometer
on the right hand side.
Try it and let us know please.
I'll try to draw a circuit later this morning.
e
PS. I haven't built the circuit, so I don't know if there are any
other mistakes.
There is a mistake in the book.
I'm not allowed to photocopy the book,
so please read these instructions carefully.
1.Look at page 143.
2. There is a connection missing.
Look at Leg 6.
There should be a connection to the middle of the 10k potentiometer
on the right hand side.
Try it and let us know please.
I'll try to draw a circuit later this morning.
e
PS. I haven't built the circuit, so I don't know if there are any
other mistakes.
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BeanieBots
Moderator
This message deleted
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hippy
Ex-Staff (retired)
@ rhysgj123 : Please do not forget that many people here will not have the book and have no idea of the hardware, circuit or program you are referring to.
If you are changing the operation of a program, helping with that will require knowing what the program is meant to do and how it works.
Does the program work if you ( temporarily, for testing ) do use a potentiometer ?
If you are changing the operation of a program, helping with that will require knowing what the program is meant to do and how it works.
Does the program work if you ( temporarily, for testing ) do use a potentiometer ?
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Have you looked at Manual 3 - Interfacing Circuits?
It shows the L293D but you'll need to tweak the PICAXE output pins to suit your 08.
regards,
colin
hippy
Ex-Staff (retired)
A variety of PICAXE Manuals and datasheets describe using the L293D, including PICAXE Manual 3 - Interfacing Circuits. You may have to connect the L293D control signals to different pin numbers than the examples to use an 08 ( Pin0, Pin1, Pin2 and Pin4 ).
Once connected up, it's then a case of providing the correct high or low levels on each of those 08 output pins to control the two motors.
Once connected up, it's then a case of providing the correct high or low levels on each of those 08 output pins to control the two motors.
BeanieBots
Moderator
I've moved your thread from the robots section to the active forum.
Maybe you will get more responses there.
You'll also get more help if you answer some of the questions you've been asked and give more indication of what you have already tried. Also, as pointed out, not everybody has the same books as you. If you want to limit replies to only people who have the book, then that is your choice.
Maybe you will get more responses there.
You'll also get more help if you answer some of the questions you've been asked and give more indication of what you have already tried. Also, as pointed out, not everybody has the same books as you. If you want to limit replies to only people who have the book, then that is your choice.
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