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PIC16F877A, or something else?

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zanes

New Member
Ok, I know this sounds a lame question, but I can't find an answer in the forum, and I can't get on with Microchip's part selector.

Basically, I'm in the final stages of development of my microswitch/bumper robot control. I think now it's at the point where I'm reasonably confident it could do a decent job of navigating my robot if other sensors were to fail. (In fact, I know it can. Pics/details etc. available on request)
Anyway, until now I've just been running my chassis with the microswitches and a 16F54. Yes, it's adequate for the robot in it's current state.

Now I've got some Sharp IR sensors the current PIC is not up to the task. So ideally I need a PIC with;
A-to-D conversion
2 PWM channels
Reasonable popularity (so I can look at example code)
Enough digital outputs for debugging, motor control and reading the switches.

Looking at various projects I see the 16F877A is popular, but it's a massive chip. Now there's not really anything wrong with that, but I was wondering if there was anything smaller out there with those features above.(Although the sight of an 877 with about 12 pins used would probably make people giggle)
 

Pommie

Well-Known Member
Most Helpful Member
The 16F876 would be fine but if you can get a 16F886 then it is an 876 with an internal oscillator and so you won't need an external crystal.

Mike.
 
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