Pic 1657 ?

Hello To All
I Am Trying To Make Pid Controller Which Is Pub. In Jan 98 Issue In Elektor I Have Prog Of Board But They Use The Pic 1657 But It Is Not Available In Local Market Pic16f84 Is Avail.
I Dont Know What To Do With This Pid Controller .
It Is These Two Are Same For My Pid Or Any Other Pid Controller On Net To Build As Project Which Was You Tested.
Thank You For Reply

The 16C57 is a 28 pin device, the 84 is 18 pin.
Even if you used a modern 28 pin device, it wouldn't work due to the pinout being totally different.

Have you looked at **broken link removed** follow the link and then click motor control and DC motors.

Mike.