How do I give a radio control car autonomous control

[Byte_Butcher]

I awoke this morning with the thought that those three and four capital letters in the upper left hand corner of the diagram could be significant. I went to page 8 then 9 and 10. That's it. What does TQFP and QFN stand for? At second glance I see one is for a printed circuit and the other is for a socket. Details! Details!

DIP = Dual Inline Package
TQFP = Thin Quad Flat Pack
QFN = Quad Flat No-lead

I wish I had an oscilloscope.
(Oh for the good old days of upright analog Tektronix.) You'd think they'd be on the yard sale/antique market.

Watch Craigslist. Maybe one will show up in your area..
Say, where IS your approximate location? Maybe someone on the list is local to you and has one or knows of one you could get cheap.

You can also put a resistive divider the line in jack on your sound card and use one of the many available O-scope programs for your computer...


steve

[mackrackit]

The other Dave tells about the sound card trick here
http://davehouston.net/learn.htm

[Kenjones1935]

Mucho frustration.

I could not get my DPDT mini-relay switches to work. I unwittingly purchased the "latching" kind with two coils. Neither I nor wikipedia know how these work. Today I ordered the same kind that http://letsmakeroborts.com/node/928 used. 5 to 10 days delivery by land.

I have succeeded in separating the 6volt battery (powers the PICkit, the radio receiver, the steering servo and the proto board) and the 7.2 volt battery (powers the wheels and the electronic speed control). Under radio control the car still runs.

Next step CCP1 and CCP2 pin outputs to the speed control and the servo.

Ken

[Byte_Butcher]

Mucho frustration.

I could not get my DPDT mini-relay switches to work. I unwittingly purchased the "latching" kind with two coils. Neither I nor wikipedia know how these work.

Wikipedia? Hmmm. I imagine the manufacturer has a data sheet available for them. Do they have a part #?

Today I ordered the same kind that http://letsmakeroborts.com/node/928 used. 5 to 10 days delivery by land.

I thought it was 1 if by land, 2 if by sea.
Must be thinking of something else....

steve

[Kenjones1935]

AXICOM, part of TYCO, has a 15 page .pdf file giving the specs to their P2 V23079 Relay product line. No where does it say how, exactly, a latching relay works. It must be common knowledge except hereabouts.

I have never coded in BASIC. I know C and C++ and a few (if I could remember them) older languages. Today I wanted to see what is being INCLUDEd when at the beginning a program I see:
"include 'M16F88x.INC' ; PM header" see below.

Today my question is about PBP INCLUDE files. (see below example) Where are NOLIST and LIST and ifdef and XALL defined? Not, as far as I can find, in the smallish MicroEngineering Labs PICBASIC PRO Compiler booklet. Is there a more complete spec on the WEB? I assume there exists a well constructed public PBP library. Where do I find "intrc_osc_noclkout" (see below code)? When I was working each company I worked for maintained its own C libraries. Is that the way this world works?


;************************************************* ***************
;* 16F887.INC *
;* *
;* By : Leonard Zerman, Jeff Schmoyer *
;* Notice : Copyright (c) 2009 microEngineering Labs, Inc. *
;* All Rights Reserved *
;* Date : 07/02/09 *
;* Version : 2.60 *
;* Notes : *
;************************************************* ***************
NOLIST
ifdef PM_USED
LIST
include 'M16F88x.INC' ; PM header
device pic16F887, intrc_osc_noclkout, wdt_on, mclr_on, lvp_off, protect_off
XALL
NOLIST
else
LIST
LIST p = 16F887, r = dec, w = -302
INCLUDE "P16F887.INC" ; MPASM Header
__config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_ON & _MCLRE_ON & _LVP_OFF & _CP_OFF
NOLIST
endif
LIST

[Byte_Butcher]

AXICOM, part of TYCO, has a 15 page .pdf file giving the specs to their P2 V23079 Relay product line. No where does it say how, exactly, a latching relay works. It must be common knowledge except hereabouts.

No, the data sheet isn't very specific about how it works. But it appears from this data sheet, that you energize one coil to "latch" the relay on, and enrgize the other coil to release it. Or you can reverse the polarity on a coil to reverse its effect (e.g., one polarity to latch, and reverse polarity to release.
I think the
http://relays.tycoelectronics.com/datasheets/p2.pdf

At the bottom of pg 4, right hand most of the 3 diagrams, (where it says
"Contacts in reset position. Both coils can be used either as set or reset coils.". I think that bit applies to your relays. You can either energize one coil to "set" the relay and the other coil to "release"..., or you can use one coil and hit it with one polarity to "set", and reverse polarity to release".


steve

[Archangel]

AXICOM, part of TYCO, has a 15 page .pdf file giving the specs to their P2 V23079 Relay product line. No where does it say how, exactly, a latching relay works. It must be common knowledge except hereabouts.

I have never coded in BASIC. I know C and C++ and a few (if I could remember them) older languages. Today I wanted to see what is being INCLUDEd when at the beginning a program I see:
"include 'M16F88x.INC' ; PM header" see below.

Today my question is about PBP INCLUDE files. (see below example) Where are NOLIST and LIST and ifdef and XALL defined? Not, as far as I can find, in the smallish MicroEngineering Labs PICBASIC PRO Compiler booklet. Is there a more complete spec on the WEB? I assume there exists a well constructed public PBP library. Where do I find "intrc_osc_noclkout" (see below code)? When I was working each company I worked for maintained its own C libraries. Is that the way this world works?


;************************************************* ***************
;* 16F887.INC *
;* *
;* By : Leonard Zerman, Jeff Schmoyer *
;* Notice : Copyright (c) 2009 microEngineering Labs, Inc. *
;* All Rights Reserved *
;* Date : 07/02/09 *
;* Version : 2.60 *
;* Notes : *
;************************************************* ***************
NOLIST
ifdef PM_USED
LIST
include 'M16F88x.INC' ; PM header
device pic16F887, intrc_osc_noclkout, wdt_on, mclr_on, lvp_off, protect_off
XALL
NOLIST
else
LIST
LIST p = 16F887, r = dec, w = -302
INCLUDE "P16F887.INC" ; MPASM Header
__config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_ON & _MCLRE_ON & _LVP_OFF & _CP_OFF
NOLIST
endif
LIST

Hi Ken,
Those are assembly language instructions, find them in PIC data sheets.
Section 15.

[mackrackit]

Ken,

You will also want to look in the C:\Program Files (x86)\Microchip\MPASM Suite for the *.inc file for your chip. That is where you will find all of the config options, near the end of the file.

To learn a little more about PBP and includes try this.

Start a new project, leave it blank and compile ( you may have to put the configs in you code space if that is the way you are doing it, but nothing more).

Looks at the ASM generated. PBP will do all of the setup from the default includes.

Now add
INCLUDE "modedefs.bas"
to your code. Compile again and look at the ASM file.

Dave