From circuit board to dashboard. One team.

We build connected devices for industry. The electronics, the firmware, the network link, the cloud and the dashboard your team reads, all designed in house.

Book a 20-minute call [link pending] See what we've built →

Five layers. One team.

Every layer of a connected product is built here, and every layer has a named owner you can call.

01 Electronics Sensors, circuit boards and enclosures. Voltage, current and power measured safely near mains. Boldizsar
02 Firmware Embedded C and C++. Sensor drivers, low-power sleep, updates over the air. Bence
03 Connectivity NB-IoT and LTE-M for devices in the field. Modbus and PLC links for equipment already on site. Bence
04 Cloud Ingest, storage, alerts and APIs, in your cloud or ours. Vencel
05 Dashboards and data Dashboards your team actually opens, and faults found in the data before they cost you. Vencel

Why one team

A board house, a firmware contractor and a software agency can each do good work. The trouble is the gaps between them.

Split across vendors With Eldr Systems

Testing Each vendor tests its own layer. The bugs live between layers. We test the whole chain, from the sensor reading to the number on screen.

Ownership When the data is wrong, every vendor points at another. One team owns the result.

Change A change touches three contracts and three schedules. A change is one conversation.

What we've built

Our own product, and work from our engineering careers so far. Client and employer names are left out.

Our product

The Keep by Eldr Systems

An NB-IoT home monitoring hub for accident prevention. Our own product, every layer built in house, in the field from November 2026.

Electronics
Firmware
Connectivity
Cloud
Dashboards and data

See The Keep →

Machine maintenance CRM

[summary to be written]

[layers to confirm]

Machine condition monitoring

[summary to be written]

[layers to confirm]

Grid data collection and analysis

[summary to be written]

[layers to confirm]

Our product

The Keep, built end to end by us.

The Keep by Eldr Systems is an NB-IoT home monitoring hub for accident prevention. We designed the board, wrote the firmware, tuned the network link, and built the backend and the dashboard. Three units go into the field in November 2026.

[X] µA

average current in power-saving mode on The Keep, measured across one full duty cycle on a power profiler.

Battery voltage Devices A, B · last 7 days

Device A: 3.87 V; latest 15-minute mean
Device B: 3.71 V; latest 15-minute mean

15-minute means from The Keep's public endpoint snapshot · 27 Oct, 12:45 UTC

Line drawing of The Keep's lid turned over, with the sensor board sliding into the pocket on its ceiling. — Drawn from our case CAD

The network link

PSM and eDRX as the operator actually granted them, not as the firmware asked.

Read the note →

Ways to work with us

Start small or hand us the whole build. Every engagement is quoted per project after a call. You own everything we produce.

Feasibility and scoping Can it be built, how, and what will it cost. You get a written answer you keep, whether or not we build it.
Prototype A working device reporting to a working dashboard, so you can test the idea in the field.
Product development From prototype to small-series production, with the documentation to build more.
Take over or extend One layer of an existing system, or a device someone else built that needs to work better.

01 Call Twenty minutes. You describe the problem, we ask questions.
02 Scope A written scope with named deliverables and a quote.
03 Build Regular demos with working hardware and real data, not status reports.
04 Handover Source code, schematics, build instructions and documentation. No lock-in.