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Originally Posted by Peter
Sounds like this is the adaptor needed for EQMOD if it needs 3.3V rather than 5V?
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Bummer, I just bought the 5v usb I/F based on what I read on the eqmod site regarding the Az-EQ6, they claim the 3.3 volt one won't work. Looks like the circuitry in both the Eq8 and AZ-EQ6 are similar.
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The motor controller on the AZ-EQ6 and the EQ8 are using 3.3V logic, and in the future, all our new motor controller will use 3.3V logic, too. But we have made sure that the communication interface is +5V tolerant and the new motor controllers will be compatible with the old SynScan hand control. The EQMOD user should make sure that their adapter can receive 3.3V serial input signal reliably.
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I read from this that the mount is tolerant of 5v TTL as long as the TTL I/F device can accurately detect the lower 3.3v signal from the mount.