Handling Status of a device

I’m new in grafana (Grafana CLI version 7.1.5, Version 7.1.5 (commit: 9893b8c53d, branch: HEAD) ) and I have this problem:
Managing a device with radio line I would like to display if there are problems on the radio connection.
I get three different values : “OK”, “Line down” and "Sync Problem",
What is a useful way to display it. I tried several items like Stat, Gauge,Status Panel but none of them work.
It can not handle character values.
Maybe someon has a tip.
Thanks a lot in advance.