Buy an Axon, Axon II, or Axon Mote and build a great robot, while helping to support SoR.
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Digital output ports = ports that servos plug into??
Whats Input/Output pins for then?
ah okay! um, stupid question: what if im purchasing analog servos? will they go into digital output ports?
Take a look at http://www.oopic.com/oopicr.htm. I think this will be a good choice since it has a free compiler (you can program it in C, Basic or Java), you don't need an programmer (just a serial cable) and it can handle up to 16 servos (just plug them in). So you will pay $80 for the OOPic-R, $80 for the ( servos and build your own brackets. I think it can be done easy with a $250 budget.
How hard is it to turn the $50 tutorial's unit from controlling 4 servos to lets say 16 servos. I can't just solder in 12 more headers in random holes can I ?
So what do I need to do after building that circuit to achieve 16 servos?
DDRC = 0x00; //configure all C ports for inputPORTC = 0x00; //make sure pull-up resistors are turned off
DDRC = 0xFF; //configure all C ports for output