Shop OBEX P1 Docs P2 Docs Learn Events
How do i make it so I can use sensors that require 5 volt logic signal work wit — Parallax Forums

How do i make it so I can use sensors that require 5 volt logic signal work wit

noobmunchernoobmuncher Posts: 124
edited 2010-01-07 00:10 in Propeller 1
Hello,

How do i make it so I can use sensors that require 5 volt logic signal work with propeller? Also what do most people use for their H bridges with the propeller? The ones i had require higher logic voltages then the propeller gives out so I need to figure this out so that I can purchase a few (hopefully they are cheap) and get on with my project lol

Thanks [noparse]:)[/noparse]

Comments

  • mparkmpark Posts: 1,305
    edited 2010-01-05 07:08
    This thread might help you: http://forums.parallax.com/showthread.php?p=585920
  • noobmunchernoobmuncher Posts: 124
    edited 2010-01-06 05:59
    Helped a lot thanks!
  • OctahedronOctahedron Posts: 18
    edited 2010-01-07 00:10
    The FET cct. for 3.3v to 5.0v signal conversion is available from http://www.hvwtech.com, stock code SKU# 50550 and is called a Logic Level Converter for a couple of bucks each. I have not tried it but it follows exactly some of the posts I have seen on signal conversion.

    23Jan2010· Tried the above and it works fine.· I used it for communicating with a RS232 adapter (Sipex SP232ACN chip) and it worked like a charm at 115200 baud rate.· I have not tried it faster than that.· The only minor thing with it was it put comm. signal to 2.5V peak to the prop but that is well within spec.· I would have been nicer to have it closer to 3.3 V but at $2 each I am not complaining. smile.gif

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔


    Post Edited (Octahedron) : 1/23/2010 6:56:35 PM GMT
Sign In or Register to comment.