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Topic: help on schematic (Read 6 times) previous topic - next topic

CrossRoads

Schematic was already created in Eagle.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

Maks

CrossRoads, since you didn't replied me on my previous post, i changed the pcb like you can see on the attachment...
i had to remove the header cause it would make the board bigger than it must be...
i created two holes a positive and a ground so i can power the board soldering the wires in there.
Does it look ok? am i missing something?

Thank you

CrossRoads

Sorry Maks, I thought we were caught up. I may have missed that one.
Will check out the files when I get home.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

CrossRoads

Maks, what is the purpose of the 8 grounded holes next to the IC?
I would think you'd want those connected instead to the IC pins 1-8, and provide an additional hole connected to GND. Then you could select which pin gets pulled low. See page 6 of the data sheet.
Or a couple of holes for GND  if you needed more than 9 address selections (all open, any 1 of 8 Low).

You also have room to make R3 the same package type as R1 instead of standing it up on end.
Right-click, Package, select 0204/7.
Same with R2, move Q2 up the board a little to make a touc more room.
I'd move D1, D2 up the board also, their bodies overlap the relay.

Are you going to want to connect an antenna wire? With these RF devices, that would be a simple piece of 17cm wire. I have just used a piece of 30 guage wirewrap wire in the past.
Add a hole for connected to the antenna pin on the RF device. Give yourself the option for it later on.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

Maks

#24
Jul 30, 2012, 01:45 pm Last Edit: Jul 30, 2012, 03:28 pm by Maks Reason: 1
Im sorry for the delay, i've been outta time...

About the 8 grounded holes... that is the coding, i cant connect all because each will have a diferent code for comunication... i was planning on soldering the code as im soldering the rest of the components...
unfortunatly, i couldnt find a way about the size of the Resistors, cause when i do the DRC check it warns about dimensions... :S
the diodes the same thing... i dont know what to do... :(

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