telemetry.digital

Data collection for your company. Free, forever.

ctrl32 telemetry collects measurements from devices, sensors, meters and PLCs over MQTT, LoRaWAN and OPC UA, keeps them as tamper-evident records, raises alarms and produces audit-ready reports. It runs on your own server, Linux or Windows.

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Devices
Libraries for Arduino, ESP-IDF, ctrl32 and STM32. MQTT over TLS with per-device tokens, claim-code provisioning, FOTA and remote console.
Records, not rows
Append-only observations with two timestamps, versioned decoders, a hash-chained audit trail and verifiable exports.
Alarms and reports
Warning and action limits, e-mail notification, CSV, JSON Lines and PDF reports rendered from your own templates.
Yours
One-command installer. Intranet or internet behind TLS. You keep the data and the responsibility.

Dashboard

Last 6 hours

Exports

Alarms

RaisedSeverityStateKeyValueRetro

Devices

DeviceTransportLast seenStatus

Reports

GeneratedKindBySizeFile hash

· audit chain: …