Tag Archive serial

Korad KA3005P Serial Programming

korad-ka3005pThis is a cheap lab bench power supply that given its flaws is a surprisingly solid piece of equipment. I wouldn’t call this a precision power supply, but its tolerances and ripple are acceptable for ordinary bench work. (And really, if you’re doing precision work, you’ll invest in a precision supply anyhow.)

There are two methods for communicating with the unit: a serial interface and a proprietary binary USB interface. One may use either the DB-9 connector or USB to access the serial interface.

I wrote a Python wrapper for the serial protocol to encapsulate the various tidbits¬† of information I’ve encountered on the¬† Internet. The firmware is buggy and there are various gotchas. Hopefully the Python wrapper will address the worst of the problems one might encounter.

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