Temperature & climate
Measure temperature, humidity and pressure and watch them change over time.
Teach IoT hands-on. No soldering. No extra theory.
HARDWARIO TOWER is a modular building kit that lets students measure real data, program devices and build their own IoT projects – from a thermometer to a smart home with Home Assistant.
30+
Ready-made projects on the STEM portal
10
Years on the market
0×
Soldering – modules just click together
CS/EN
Documentation, guides and SDK
WHY TOWER IN THE CLASSROOM
IoT you can teach without improvising.
Hands-on, not theory
Students measure temperature, humidity, CO₂ and motion and work with real data from the classroom, not with examples from a worksheet. A lesson looks different when the number comes straight from a sensor.
Connection with applications
TOWER sends data over its own radio to a USB dongle and on via MQTT into Home Assistant or Node-RED. Students see the whole journey from sensor to dashboard.
Safe experiments
Everything runs on low voltage from AAA batteries, no 230 V in the classroom and no improvising with power supplies. Experiments therefore take place without unnecessary risk.
No soldering, no losses
Modules simply click together, no soldering iron and no short circuits. Thanks to consumption under 5 µA in sleep, AAA batteries last a whole semester of lessons in the classroom.
WHAT IS TOWER?
A modular wireless IoT platform.
A Czech modular IoT kit from HARDWARIO. Snap any combination of modules onto the Core Module and build exactly the device you need for your lesson.
- Clime Set A set for monitoring temperature and humidity with a wireless connection
- Display Set Real-time display of values with an LCD screen and wireless sensors
- Push Set A set with a smart button for triggering actions and notifications
- Motion Set A set for motion detection with a PIR sensor and wireless alerts
- Clime XL Set Air quality monitoring with a CO2 sensor and climate tracking
- Control Set A set with a relay for home and industrial automation
TEACHING SCENARIOS
What you can teach with TOWER at school
Concrete uses for lessons, project work and clubs — from measuring through data to automation.
Air quality (CO₂)
Track CO₂ levels in the classroom and link them to ventilation.
Smart home & Home Assistant
Send data into Home Assistant and build a smart classroom.
Meteorology
Build a school weather station and collect outdoor weather data.
Working with data (logging)
Store values over time and visualise them in charts and dashboards.
Automation
React to events and switch devices via MQTT and Node-RED.
A PATH FOR TEACHERS
From package to a finished lesson in an afternoon.
You don't have to be an IoT expert. All it takes is three steps.
- 01
CHOOSE A SET
Based on the size of your class and what you want to measure. We'll help you find a package that fits your lesson and your budget.
- 02
GO THROUGH THE MINI COURSE
Ready-made courses on the STEM portal. They walk you through assembly, uploading firmware and the first sample of data. No need to prepare materials yourself.
- 03
TEACH IT IN THE CLASSROOM
Students get the modules in hand, assemble the device and see the measurement in the app. The lesson runs to the script, you keep an eye on the time.
TOWER PROJECTS
All projects on STEM Inspiration for what to teach with TOWER
Quick inspiration for a lesson, project work or a club — not a long catalogue. Every project shows the minimum kit you need at a glance.
Advanced
Wireless weather station
Measure wind, rainfall and temperature outdoors and send the data wirelessly over 868 MHz – from sensor to your own dashboard.
Teaching value: Collecting real weather data and working with charts – bridges physics, IT and project work.
Min. kitCore ModuleSensor ModuleRadio Dongle
Open the guide 
Push the Button
Press a button and a push notification instantly lands on your phone.
Teaching value: First success in 15 minutes – the path from device to app.
Min. kitPush SetRadio Dongle
Open the guide 
Wireless door sensor
When a door or window opens, a notification lands on your phone.
Teaching value: Intro to sensors and notifications – reacting to a real event.
Min. kitCore ModuleSensor ModuleRadio Dongle
Open the guide 
Wireless smart LED strip
Control an LED strip remotely – colours, brightness and effects via Node-RED and Blynk.
Teaching value: Controlling devices remotely and linking hardware to an app.
Min. kitControl SetRadio DongleLED strip
Open the guide 
Smart ping-pong table
Whoever scores presses a button and an LED strip keeps the score for you.
Teaching value: A fun club project – score logic and instant reaction to an event.
Min. kitCore ModulePower ModuleLED strip
Open the guide 
Measuring CO₂ and climate in the classroom
A wireless monitor of CO₂, temperature, humidity, light and pressure – data in Node-RED and on your phone.
Teaching value: Working with real data and dashboards – from sensor to chart in one lesson.
Min. kitCO₂ Monitor KitRadio Dongle
Open the guide More inspiration from the community
Dozens of real TOWER projects from other users – from a weather station to power metering. Inspiration for final theses, clubs and students’ own ideas.
PACKAGES FOR SCHOOLS
Choose by class size and ambition
STARTER
For a pilot lesson
One set for the teacher or a small group. Try out TOWER without a big investment.
- 1× Core Module + Battery
- 3 sensor tags (T, RH, baro)
- USB dongle + Raspberry Pi server
- Access to the STEM portal
CLASS
For the whole class
Enough sets for group work throughout the school year. The recommended choice for regular teaching.
- 8× Core Module + Battery
- 16 sensor tags (T, RH, baro)
- USB dongle + Raspberry Pi server
- Access to the STEM portal
YEAR
For the whole year group
The maximum set for teaching across multiple classes and subjects.
- 16× Core Module + Battery
- 32 sensor tags (T, RH, baro)
- USB dongle + Raspberry Pi server
- Access to the STEM portal
FREQUENTLY ASKED QUESTIONS
What teachers ask most often.
Didn't find your answer? Write to us — every question is read by us, not by a form bot.
What types of schools is TOWER suitable for?
Upper primary schools, secondary schools, grammar schools, technical and vocational colleges. It fits subjects such as computer science, physics, programming and project-based teaching. If you're interested in a different format, get in touch.
Does the teacher need to know how to program in C?
No. The ready-made projects use prepared firmware and configuration. More advanced courses also offer programming in C and Python, but it isn't a requirement.
How many students does one set cover?
Ideally 2–3 students per set, so everyone gets to handle the hardware. We recommend packages based on class size.
What software do students need?
Just a web browser and optionally a mobile app. Everything else runs on the supplied Raspberry Pi server.
Is it safe for students?
Yes. Everything runs on low voltage, the modules click together without soldering or hot tools. No risk of burns or short circuits.
What if I need advice on a specific project?
Write to us or use the community forum. We'll help with lesson design and the technical wiring.
What language are the documentation and courses in?
The documentation, guides and SDK are available in both Czech and English (CS/EN).
RESOURCES AND DOCUMENTATION
Academy builds on. It doesn't replace.
Everything in-depth and up to date is in the resources from HARDWARIO. Academy shows you the way in.
STEM projects for students
A collection of ready-made mini-courses and projects you go through with your class step by step. From the first sensor to your own application.
Open STEMCommunity projects
Real projects from other TOWER users. Inspiration for final theses, clubs and students' own ideas.
Browse projectsTOWER documentation
Technical documentation of all modules, code examples, a description of the SDK and integration with Home Assistant or Node-RED.
Open documentationSample lesson plan
A ready-to-run first TOWER lesson — objectives, kit list, a timed 45-minute flow and teacher notes, on one page.
Download PDFA PATH FOR TEACHERS
Want TOWER at your school
Write us a few words about what you teach and what you'd like to try with TOWER. We'll get back to you within two business days with a proposed set and a consultation date.
Book meetingOr call us directly
+420 775 159 734