USB-C charge & sync adapter for Palm IIIc

What is it?

A USB-C sync and charging adapter for the Palm serial dock connector.

Problems with other adapters

A common problem with other adapters is that they often require a hardware RS-232 serial port, making use of an additional adapter with modern hardware necessary. There was also a USB-equipped docking station available but that one is very large, too. Also it has only USB-A so strictly speaking there is still an adapter required for use with many modern devices.
USB-C all the things!

Hardware

Thanks to semi-modern electronics everything required for USB to serial conversion, RS-232 level conversion and charging of a Palm PDA equipped with this type of palm serial connector can be squeezed within the space usually occupied by the palm serial connector itself.

Links

• Hardware: KiCAD design files