IoT
Connected devices and systems that work together.
Connected sensors and devices that collect, transmit and act on real-world data.
Under the hood
A real-time view of how this is engineered, run and kept honest in production.
Implementation stack
Microcontrollers and edge gateways for local sensing and control
MQTT / CoAP for lightweight, guaranteed messaging
Edge runtime for local processing and offline buffering
OTA firmware platform for signed fleet updates
Time-series database for telemetry ingestion and retention
Alerting rules tied to threshold and drift detection
Device identity and certificate lifecycle management
Live handling loop
Sense
Sensors sample physical conditions at the configured rate.
Process at edge
Gateway filters, aggregates and acts locally to cut latency.
Publish
Telemetry is published over MQTT/CoAP with defined quality of service.
Ingest
Messages land in the time-series store for history and analytics.
Act
Rules fire alerts or control commands back to the fleet.
Update
Signed OTA firmware rolls out to the fleet with staged verification.
Production integrity
Offline-first devices buffer locally and reconcile on reconnect.
Per-device certificates so identities cannot be spoofed at the broker.
Signed firmware + staged OTA to contain bad updates to a canary set.
Watchdog and heartbeat telemetry to surface silent devices early.
Real-world use
A representative deployment of this service in practice.
Who it was built for
A cold-storage operator losing product to undetected temperature drift (anonymised).
The problem
Loggers were checked manually once a shift; a failing cooler could go unnoticed for hours, risking perishable stock, while any carry that blocked a logger created a blank reading that nobody saw.
The deployment
CoveScreen deployed battery-powered sensor gateways at each cold chamber, configured edge thresholds that raised instant alarms, and connected telemetry to a central dashboard and SMS alerting.
The mechanism
Sensors publish temperature every 60 seconds over MQTT; the edge gateway raises a local alarm within two readings of a breach and, offline, keeps buffering; on reconnect the backlog reconciles so audit history stays complete.
Operational insight
Benchmark targets this is engineered to hold. Stats are framed as targets and SLAs — not fabricated outcomes.
- < 250 ms
- Edge-to-platform telemetry ingestion latency
- 99.9%
- Message delivery reliability target (QoS 1)
- < 5 min
- Signed OTA rollout window for the fleet
Discuss your iot needs
Tell us about your goals and we will help you understand the right next step — with no obligation.