Parallax PSC with two BS2p on its input?
Hi all,
Since the PSC serial input is open-drain (driven low, pulled high) would it be possible to have two BS2p's on its input as long a neither Stamp tried to communicate with the PSC at the same time?
If this is possible, I assume that there will have to be a pull-up resistor (1-2k) on the common BS2p serial outputs to the PSC serial input?
Comments?
Regards,
TCIII
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If you are going to send·a Robot·to save the world, you·better make sure it likes it the way it is!
Post Edited (Tom C) : 7/16/2007 8:06:21 PM GMT
Since the PSC serial input is open-drain (driven low, pulled high) would it be possible to have two BS2p's on its input as long a neither Stamp tried to communicate with the PSC at the same time?
If this is possible, I assume that there will have to be a pull-up resistor (1-2k) on the common BS2p serial outputs to the PSC serial input?
Comments?
Regards,
TCIII
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
If you are going to send·a Robot·to save the world, you·better make sure it likes it the way it is!
Post Edited (Tom C) : 7/16/2007 8:06:21 PM GMT
Comments
And to provide fail-safe protection to both BS2p's, you might put a 220 ohm resistor in series with the serial line, close to each BS2p.