Here are some of our numbers

Statistics of Energomonitor, a reference Stack7 project.
incoming MQTT messages
per minute
API requests
per minute
sensor devices
data streams

What do we do exactly?

We are experts in all of the 7 layers of IoT development.
Hardware components

Hardware components

Hardware layer

We have developed a wide variety of sensors and gateways for data collection. Depending on your requirements, we can cover your needs with existing hardware, or develop a brand new device.

Engineering and electronics design

  • PCB and mechanical design
  • Prototyping (3D printing)
  • Testing
  • Pre-production runs
  • Production (1000+ pcs)

Industrial design

  • CAD/3D design
  • Rendering, visualization
  • Testing
  • 3D printing and CNC machining
Data link protocols

Data link protocols

Communication layer

We developed our own encrypted short-range radio protocol Chirp, which works on 433/868 MHz for optimized power consumption and transmission distance. Depending on the application, we work also with LoRa, NB-IoT, GPRS, and Dash7.

Data link protocols

  • Short range / low bandwidth (Sub-1GHz, DASH7, Z-Wave, wM-Bus)
  • Short range / high bandwidth (Wi-Fi, ZigBee)
  • Long range / low bandwidth (LoRa, Sigfox, NB-IoT)
  • Long range / high bandwidth (GSM, LTE)
  • Tethered (Modbus, Ethernet)
Network & Transport protocols

Network &
Transport protocols

Communication layer

Our devices send data over IPv4. We are ready for IPv6.

Session protocols

Session protocols

Communication layer

We work with all common IoT protocols.

Session protocols

  • MQTT
  • CoAP
  • HTTP
System hardware & IoT platforms

System hardware
& IoT platforms

Software layer

Our system is cloud-based and covers all the necessary components: device management, data collection / processing / storage / analysis, and a RESTful API. We also think carefully about security, employing technologies such as TLS and HTTPS.

Software services/components

  • Messaging
  • Databases
  • Processing / Analytics
  • Network / Device management
  • Middleware software components
Presentation & Visualisation

Presentation & Visualisation

Software layer

We develop intuitively designed web applications for data visualization along with native Android and iOS apps.

Business application

Business application

Application layer

We are ready to help you develop your IoT application (smart city, smart grid, smart home, connected mobility, Internet of Energy, security, …).

Business/Industrial IoT

  • Energy
  • Industrial
  • Healthcare
  • Buildings/Cities
  • Retail
  • Services
  • Smart Farming

Customer IoT

  • Smart home
  • Lifestyle
  • Healthcare
  • Mobility

Successful projects

Projects we have designed, developed and delivered.

We have a history with IoT

Stack7 grew out of a set of technologies that power Energomonitor. These technologies were developed and improved over many years.
  1. We decided to create an internet-connected electricity meter. How hard could it be?

  2. The first version of our application released. Started with software on top of third-party hardware, which we eventually outgrew.

  3. Started developing our own hardware optimized for long battery life and good radio range. Moved data collection, processing, and storage to the cloud. Became early adopters of Docker.

  4. Started volume production of our hardware. Switched from HTTP to MQTT in order to measure data in real-time.

  5. Started business development outside Czech Republic, in Spain, Italy, Netherlands, and Australia. Other countries follow soon.

  6. Customers want to measure much more than energy. We began developing temperature, humidity, and CO2 sensors.

  7. Broadband? LTE? LoRa? NB-IoT? DASH7? We now can do all of the above.

  8. We decided to offer our skills and technology to those who need it. Stack7 is born.

Do you want to know more information?
Write us and we will contact you with a proposal for a solution.

We love our business partners

They help us to spread our IoT products around the globe.
  • Australia
  • Austria
  • Bulgaria
  • Finland
  • Germany
  • Hungary
  • Italy
  • Netherlands
  • Slovenia
  • Spain


Where can I find your price list?

Every project is different and has specific needs. As a result, Stack7 encapsulates a large number of personalised services, and it is hard to put a universal value on them and prepare a general price list. E-mail us with your project and let’s talk.

I don’t need help with the development of a whole project, just with one part of it. Can you do that?

Sure. We can help you with a specific part of your IoT project. Software development, hardware development, integrating solutions, etc. We can help you with all the development stages, but we know that sometimes it is not necessary.

I saw your catalogue. Is that all you can do for me?

Absolutely not. The catalogue represents the part of our work which is already done and in production. Consider the catalogue as a demonstration of our skills, which we can use for your project. Just approach us with your idea and let’s see what we can do for you.

Our blog

26. 6. 2018

IoT is on the threshold of the next great format war. Will the winner take all?

Estimates for the number of IoT devices that will be connected by 2020 keep rising. At the moment it’s in the tens of billions. Google and Amazon are competing hard to win the voice-controlled smart home market. But what’s the case for scenarios like smart agriculture and smart cities that require long-range, low-power transmission?