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280af2 David Marsh 2026-04-24 02:32:15
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# Grafana
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## Battery
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```
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from(bucket: "meshcore")
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|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
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|> filter(fn: (r) => r._measurement == "meshcore_status")
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|> filter(fn: (r) => r._field == "bat")
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|> map(fn: (r) => ({
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_time: r._time,
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_value: r._value,
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series: r.node
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}))
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|> group(columns: ["series"])
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|> aggregateWindow(every:15m, fn:last, createEmpty:true)
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```
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## Noise Floor
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```
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from(bucket: "meshcore")
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|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
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|> filter(fn: (r) => r._measurement == "meshcore_status")
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|> filter(fn: (r) => r._field == "noise_floor")
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|> group(columns: ["node"])
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|> aggregateWindow(every: 15m, fn: mean, createEmpty: true)
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```
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## RF Link Health
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```
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from(bucket: "meshcore")
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|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
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|> filter(fn: (r) => r._measurement == "meshcore_status")
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|> filter(fn: (r) =>
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r._field == "last_snr" or
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r._field == "last_rssi" or
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r._field == "noise_floor"
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)
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|> group(columns: ["node", "_field"])
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|> aggregateWindow(every:15m, fn:mean, createEmpty:true)
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```
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## Status SNR
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```
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from(bucket: "meshcore")
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|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
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|> filter(fn: (r) => r._measurement == "meshcore_status")
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|> filter(fn: (r) => r._field == "last_snr")
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|> map(fn: (r) => ({
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_time: r._time,
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_value: r._value,
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node: r.node
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}))
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|> group(columns: ["node"])
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|> aggregateWindow(every: 15m, fn: mean, createEmpty: true)
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```
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## Trace SNR
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```
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from(bucket: "meshcore")
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|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
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|> filter(fn: (r) => r._measurement == "meshcore_trace")
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|> filter(fn: (r) => r._field == "snr")
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|> map(fn: (r) => ({
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_time: r._time,
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_value: r._value,
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route: r.from + " → " + r.to + " : " + r.site
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}))
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|> group(columns: ["route"])
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|> aggregateWindow(every: 15m, fn: mean, createEmpty: true)
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```