New Project Board
April 29, 2009
hmm didnt read wihle writing this, its rather long. Skip to the bold to see my questions
Alrighty well i know you guys havent seen it but i did end up finishing the start here bot and it works... cept it has no wheels. Obviously it wouldnt be very intreasting to post a video of that so when i do end up making another order from solarbotics ill be sure to pick up the wheels (hopefully soon, youll see).
I've been screwing around with the arduino for the past two weeks and although the nicest feature for me was that the power came from the USB cable by far the most convinient thing to happen since i started robotics, the programming itself seemed so much more overly complicated that Basic. I'm assuming you can do more but i figure ill leave some challenges for later. So now... with the release of the X2 line ill be switching back to pic controllers, and the first thing i want to do is build my own board.
I've been looking forward to this for a while actually, custom project boards have always intreated me (the generic look, and it makes you look smarter). Also half the fun of robotics IMO is building the bot (if not all). Since i've joined a couple months ago im starting to get a much better idea of how custom boards work. After moving my 28x1 to a breadboard and then running my LED sketch, i felt i was going in the right direction. Im on the verge of placing an order for two 40x2's and two 28x2's (just in case i fry one... or two.. or three...) theres also no point in placing multiple small orders, ill just order them all at once :).
Idealy i would want to start off building a 28x2 "project board" as a custom build moving up to the 40x2. To make things easier i want to include the USB port thingy somewhere which i know uses three wires on three pins. i've turned to almost all other sources i had acess to about building custom boards and none helped. I read the manuals and they gave me some nonesense telling me to buy more chips so i could make my own board, not actually how to make it.
This post is mostly about creating a ground or base of knowledge to start the board. I have some really seemingly stupid questions to ask but i wouldnt know how to search them.
On the 28x1 project board, each IC pin goes to a set or more of 2 pins with the option of a third. i know that one is the signal pin/ output another is 5v and the one you solder in is ground. going off what a servo requires. it would be easy to look at the data sheet and determine which pins are outputs, ground, or 5V. i know very little about circuits and schematics, but could you theoretically connect all the 5V's? And would that supply equal power to all of them?
Secondly, there all these resistors, a capacitor, i think the blue thing is a cap, as is the long black rectangle. And a little square thingy. How would these be wired up to the chip?
I also want to add an l293D or another motor driver and i saw guibots tutorial (http://letsmakerobots.com/node/2074) however that looked a bit to complicated.
If i can build a board with that expansion in mind, i will be more than pleased. Also if im getting too far ahead of myself please let me know.