Help me with length counter project with 89C8252

[vijaya_narayana]

hello everybody

i am working onan length calculator project i am using 89c8252 could any body help in this regard i am calculating the length by measuring the rpm the length is .75 meters for 1 rpm

 

[IanP]

Re: length counter

Use a rotary encoder ..
You can make one (old computer mouse), or buy one (rather expensive option) ..
A little bit of theory and 8051-based practical example is here:
**broken link removed**

Regards,
IanP

 

[vijaya_narayana]

Re: length counter

thank you

 

[selvaraj_iit]

length counter

Use a proximity or opto-coupler for measuring RPM and multiply by lenth.