[dorkbotpdx-blabber] Focused Workshop, 30Nov08, Making Noise with the Arduino. (followup).

[Donald Delmar Davis]

That was a little more scattered than I would have liked but hopefully  
it was worth everyones while.

The schematic for the midi board is attached below.



The male header is: in, out, vcc, ground. to wire it to your benito  
you wire in->pin0(tx), out->pin1(rx), and ground to ground. To use the  
boards power supply to power your benito you can wire vcc to one of  
the +5 pins. You can power them independently or you can also power  
the midi board from your benito/and leave the power input disconnected.

Also.


I looked at the headphone amp schematic and I realized that it would  
cost less than a buck a piece at 10 or more. The volume slider being  
the most expensive piece.

I will go ahead and order the first 10 and if more than 10 people are  
interested we can order more or add it to the group order.


Digikey parts.
1  	20  	P5148-ND  	CAP 10UF 25V ALUM LYTIC RADIAL  	    	0  	0.07700   
	$1.54
2 	10 	493-1286-ND 	CAP 470UF 16V ELECT VZ RADIAL 	  	0 	0.19600 	$1.96
3 	10 	330H-ND 	RES 330 OHM 1/2W 5% CARBON FILM 	  	0 	0.05800 	$0.58
4 	10 	CF1/418K5%RCT-ND 	RES 18K OHM 1/4W 5% CARBON FILM 	  	0 	 
0.01800 	$0.18
5 	10 	CF1/4105%RCT-ND 	RES 10 OHM 1/4W 5% CARBON FILM 	  	0 	0.01800 	 
$0.18
6 	10 	399-4266-ND 	CAP .1UF 50V 20% CER RADIAL 	  	0 	0.12100 	$1.21
	Subtotal	$5.65


The volume control is actually more expensive but you may have this on  
your bench.

Mouser #:  	 311-1201F-100K  	


Please follow up by joining the google group.
http://groups.google.com/group/dorkbotpdx-arduino-cult-induction

Don.

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