what chip to use

[mainman]

I'm currently building a robot that follows a white line. However I do know which chip to use to control functions such as turning. I'm thinking of using a 16F84. Is this a good chip to use or are there better ones to use?

This chip must have two inputs and two outputs

 

[Nigel Goodwin]

I'm currently building a robot that follows a white line. However I do know which chip to use to control functions such as turning. I'm thinking of using a 16F84. Is this a good chip to use or are there better ones to use?

Pretty well any PIC would do, but the 16F84 is a bad choice, as it's limited and expensive - it was replaced last century by the cheaper, higher spec, 16F628. For a while the 16F84 was listed as obselete, but now they seem to have reintroduced it (at a silly high price) because idiots keep ordering it!

 

[Krumlink]

In other words, don't be an idiot, because it will only effect you. I highly suggest even the 16F88, because it was my first uC and it works amazingly well! I would get it if you could.

 

[Gayan Soyza]

If you have that 84A PIC you can do with it.

If you are not controlling the speed of your robot the historic PIC 16F84A is more than enough.

It just detects which sensor is active & makes one output low or high to get the direction & after makes both (outputs)motors on to move it forward.