3.3 v could be enough to be considered as a high level signal. Maybe you could just use it without anything in between. Depending your PIC, you could also use the built-in comparator and use it as a level converter as well.
3.3 v could be enough to be considered as a high level signal. Maybe you could just use it without anything in between. Depending your PIC, you could also use the built-in comparator and use it as a level converter as well.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
I have a USB Serial module that I use with my PIC projects.
http://www.dontronics-shop.com/produ...roductid=16141
That has 3.3V lines for TX and RX. I just use a 1k resistor between that and the PIC and it works fine
If you were only going from the 3.3v device to an input then direct connection would probably be OK but if you send any signals back from the PIC then without a limiting resistor it would probably damage the 3.3v device.
Keith
www.diyha.co.uk
www.kat5.tv
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