Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: otakis on February 03, 2008, 05:30:23 PM

Title: The $50 robot - Serial cable
Post by: otakis on February 03, 2008, 05:30:23 PM
hello,
i am from Greece and this is my first robotic project (great tutorial).
sorry for my bad english.

today i was constructing all electronics, but i don't understand the connections of the flat serial ICSP cable (in the female serial connector).

please help me!
thanks

Title: The $50 robot - Serial cable
Post by: otakis on February 05, 2008, 04:29:16 PM
I ask informations for this cable!
Title: Re: The $50 robot - Serial cable
Post by: Trumpkin on February 05, 2008, 05:24:35 PM
what information do you want? (please explain better)
Title: Re: The $50 robot - Serial cable
Post by: otakis on February 05, 2008, 05:52:39 PM
what information do you want? (please explain better)

the connections in the female serial connector (in the circle).
which cable correspond to which pin (10 cables to 9 pins)
Title: Re: The $50 robot - Serial cable
Post by: hazzer123 on February 05, 2008, 05:58:05 PM
Do you have a multimeter?

You can use the diode test to see which pins in the DB9 connecter go to which pins on the pin header connecter.
Title: Re: The $50 robot - Serial cable
Post by: otakis on February 05, 2008, 07:16:05 PM
Do you have a multimeter?

You can use the diode test to see which pins in the DB9 connecter go to which pins on the pin header connecter.

no, no...
i haven't serial cable...
i must construct this cable
Title: Re: The $50 robot - Serial cable
Post by: ed1380 on February 05, 2008, 08:24:47 PM
I ask informations for this cable!

the "cable" in that picture is the programmer. there are diferent ones. the one in the pic is ~$14 but you can get a better one for $30
Title: Re: The $50 robot - Serial cable
Post by: Trumpkin on February 05, 2008, 08:33:24 PM
i think he wants to make the programmer.
Title: Re: The $50 robot - Serial cable
Post by: ed1380 on February 05, 2008, 08:53:32 PM
good luck with that. didnt work for me
Title: Re: The $50 robot - Serial cable
Post by: hazzer123 on February 06, 2008, 01:04:55 AM
The cable is not a simple rewiring of a connector. It has some electronics inside the big grey part of the DB9 port. It is still possible to make an equivalent of this cable, but it wont be as simple as i think you thought.  ;)
Title: Re: The $50 robot - Serial cable
Post by: Trumpkin on February 06, 2008, 10:09:07 AM
i actually took mine apart once and it didn't seem like it would be that hard to make.
Title: Re: The $50 robot - Serial cable
Post by: gamefreak on February 06, 2008, 10:13:32 AM
just for the record there is actually 10 parts of the programming cable, the 9 pin holes, and the outer rim make up the 10 pins.
Title: http://www.olimex.com/dev/images/avr-pg1b-sch.gif
Post by: otakis on February 07, 2008, 02:11:53 AM
thanks all for the responce

i found this http://www.olimex.com/dev/images/avr-pg1b-sch.gif  (http://www.olimex.com/dev/images/avr-pg1b-sch.gif)


Title: Re: The $50 robot - Serial cable
Post by: sacre on June 01, 2010, 05:12:55 PM
Thanks otakis, I was also looking for this :)  will try first making the programmer, if it fails, then I will have to buy a programmer, which would be probably the AVRISP, but the Arduino is also under consideration, but with the fundamental question: can the Arduino be used to program ATmega** MCU's on the robot instead of on the Arduino board, but like the AVRISP / LPT programmers do?