Added 29 extra outputs to my Arduino

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Someone was writing a library a while back that interfaced with N shift regs, ie you did something like newDigitalWrite (27, HIGH) and it shifted out the appropriate bits.

You should try to track that down and maybe package it with your board.


Rob

Sounds like the EZ-Expander shield I make, but you have twice as many shift registers/outputs: http://nootropicdesign.com/ez-expander/

To be honest, Macetech's Centipede shield is a superior solution at a good price (64 pins for $25) http://macetech.com/store/index.php?main_page=product_info&products_id=23

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I use Gold Phoenix PCB for all my boards.

I'm interested - how do you plan to circulate/supply/sell them? any ideas on price?

also are they though-hole or smd?

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so if that's £12.50 for board + parts + postage - then yes please!

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aha got the email on the batphone while away from the pooter wondered who the **** it was from all makes sense now!

cheers Mike

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received mine today :slight_smile:
is there a link to a sketch?

cheers
Mike

No decoupling capacitors or offboard ground connections?

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cheers!

Mike