Device manual: Download

WXBits module allows you to control 4 MOSFET transistor power outputs and read states of 4 optoisolated inputs.
Device is controlled via RS-485 serial interface and can be used with WX3in1 Plus and WX3in1 Mini devices which allow you to send input/output levels as APRS telemetry reports and control output states with telnet interface.

Device printed circuit board
Below you can see a photo of a device PCB. It is a compact design mounted on a high-quality 1-layer PCB manufactured in Poland. Every unit is mounted and tested by me.