Sonoff Motion Sensor / InfluxDB / Grafana

I’m trying to plot when my Sonoff Motion Sensor reports motion in Grafana. The sensor works in HA, with NodeRed, so seems to be configured correctly but in influx DB I can find the entity but I don’t seem to be able to find any data/state which I can display in Grafana (a binary ON / OFF would be enough).

What am I missing?