SW18AB V2.0.8 available

Updated firmware for the Serial Wombat 18AB chip is available on GitHub. This fixes a couple of problems where a few pins could set other pins to outputs inappropriately, and fixes inability to do write-after-read operations on pin public data. Get the .hex file here:

https://github.com/BroadwellConsultingInc/SerialWombat/tree/main/SerialWombat18A_18B/releases

Or use the firmware update example sketches in the Arduino Library. Update procedures are shown in these videos: