Electronics > Electronics

Microcontroller choice

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joe61:

--- Quote from: vitalik53 on March 13, 2012, 03:02:15 PM ---how about the ATmega328P? is it the best in the series? or are there better ones?

--- End quote ---

Better for what? You have to know what you want to do, then pick something that let's you do that within whatever other criteria you have. We don't know what any of that is, so your question is a little too vague to answer.

Joe

vitalik53:
sorry about that... the ATmega8 used for the $50 robot requires all the add-ons.. voltage regulator, resistors, capacitor, led, etc.. thus, for every project i'm gonna do, if i use a prototype board i'm gonna have to buy different parts, i want a micro-controller that can be used universally for various projects...

thanx

newInRobotics:

--- Quote from: vitalik53 on March 13, 2012, 01:50:18 PM ---yeah that's true.. but what if i want to control servos, recieve sensor information, i wold need to add a timer with other stuff... and Atmega 48 has limited memory space and processing power

--- End quote ---
How many servos do You want to control? How many sensors are You going to use? You wouldn't need to add a timer as there are 3 timers already. Other stuff? Are we talking magic mushrooms?  ;D

joe61:
Well, the link I gave is one possibility. It has the same flash size as the ATmega328p, but it has peripherals the 328 doesn't (built in USB, more ADC, a second USART, etc), and is $20 vs $30 or so for an Arduino. Any board you buy like that is going to have voltage regulation, capacitors, probably a crystal or ceramic oscillator, et al.

Lots of people like the Arduino, it's easy to use, comes with lots of libraries, and so forth. The Axxon is great if you need a lot more stuff (more USARTS, ADC, pin headers for interfacing with servos, regulated and unregulated power, ...).

Pololu makes some really nice boards too, most have built in motor drivers, and are pretty small. There are a lot of possibilities, so I'd recommend you first decide what kind of stuff you're interested in doing, and go from there.

Joe

vitalik53:
if i buy an arduino, what would be the best board to get? for there are multiple ones.. is there like a single 'generic' board

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