Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Melcin Powell on February 04, 2011, 07:34:46 PM

Title: soldering 1uf capacitor not sure where it goes
Post by: Melcin Powell on February 04, 2011, 07:34:46 PM

Ok looking at this picture he connects one lead to pin 7, 6 and one to pin 8?? Can someone please try and clear up where i solder the leads to and also where do i solder the 9v battery as well as the 4.8v battery i don't understand when he says ground does that mean any of the ground connections or the one on the power bus?
 (http://www.societyofrobots.com/images/sbs_connect8.JPG)

Thank you for answering my questions.

Title: Re: soldering 1uf capacitor not sure where it goes
Post by: Soeren on February 04, 2011, 09:27:44 PM

Hi,

Quote from: Melcin Powell on February 04, 2011, 07:34:46 PM

Ok looking at this picture he connects one lead to pin 7 and one to pin 8?? but he also has pin 6 lit up wth blue so can someone please try and clear up where i solder the leads to and also where do i solder the 9v battery as well as the 4.8v battery i don't understand when he says ground does that mean any of the ground connections or the ones on the power bus?

Care to add a link to whatever you're talking about?
"He" describes loosely about 3 billion people  ;)

Title: Re: soldering 1uf capacitor not sure where it goes
Post by: VegaObscura on February 04, 2011, 11:40:09 PM

Those pins are actually 20, 21, and 22.  The pin at the very bottom left that you think is pin 1 is actually pin 28.  Pin 20 and 21 are AVCC and AREF respectively, and are connected together.  Pin 22 is GND.  The capacitor connects to pin 20 and 22.  I hope that clears things up.

Title: Re: soldering 1uf capacitor not sure where it goes
Post by: Melcin Powell on February 05, 2011, 03:40:35 AM

Sorry about that Soeren, I was talking about admin the one who i think created the tutorial. Thank you vegaObscura for clearing up where to solder the capacitor but what about the 9v and the 4.8v batteries?

Thanks

Title: Re: soldering 1uf capacitor not sure where it goes
Post by: VegaObscura on February 05, 2011, 07:14:57 PM

Connect the 9V to the Vin and gnd of the 5V regulator.  Connect the 4.8 to the + and gnd of the servo power bus.  Let me know if you need a detailed explanation on what the 'servo power bus' is.

Title: Re: soldering 1uf capacitor not sure where it goes
Post by: Melcin Powell on February 05, 2011, 09:05:36 PM

Ok thanks just to make sure i get it right the red stripe is where i solder the positive lead of the 4.8v battery pack and the black the negative lead? For the 9v battery i plug in the positive lead to the blue circle and the negative lead to the yellow circle? Please excuse my poor soldering\wiring if you recognize any other mistakes please let me know.

(http://i622.photobucket.com/albums/tt301/Corpuschristihomes/CIMG2257copy.jpg)


Thanks a ton for answering all of my simple questions.

Title: Re: soldering 1uf capacitor not sure where it goes
Post by: VegaObscura on February 06, 2011, 03:35:23 PM

Yes, that is correct and everything looks good.  Just remember, once your board is done before you ever put your chip in the socket, power it on and check voltages first.

Title: Re: soldering 1uf capacitor not sure where it goes
Post by: Melcin Powell on February 07, 2011, 01:38:17 AM

Ok thanks for all the help.