How IoMobility Solutions Deployed Fleximodo Solar-Powered Flip-Dot Parking Guidance Signage in Martin, Slovakia

Deployment Snapshot

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The Client

IoMobility Solutions s. r. o. is a micro-enterprise based in Martin, a city of approximately 55,000 people in central Slovakia's Turiec region. Led by CEO Milan Veterník, the company develops data-driven urban mobility solutions, operating what it calls an "Internet of Mobility Ecosystem" — combining IoT sensors, connectivity, signage, and digital platforms to address traffic congestion and parking management for Slovak municipalities.

Despite its small size (2 employees), IoMobility Solutions positions itself as a smart mobility integrator, assembling solutions from 100+ IoT product types to create customised municipal deployments. Martin, as both the company's headquarters and likely primary deployment city, provides a live demonstration environment for IoMobility's urban mobility platform.

The Challenge: Communicating Parking Availability to Drivers in Real Time

IoT sensors provide occupancy data — but that data only reduces congestion if it reaches drivers before they begin circling for spaces. Municipal web portals and mobile apps serve tech-savvy users, but many drivers — particularly older residents and visitors unfamiliar with local apps — need physical signage visible from the road. A display at the entrance to a parking zone showing "42 spaces available" changes driver behaviour immediately, without requiring any app download or digital literacy.

The Solution: Zero-Maintenance Solar-Powered Digital Parking Signage with LoRaWAN Connectivity

IoMobility's April 2024 order deployed Fleximodo's most visible product: a physical parking guidance system built around outdoor digital parking signage.

The deployment included:

• Parking Guidance Signage (3-unit display) — Three-digit Flip-Dot display showing real-time parking availability counts
• Outdoor installation with mounting equipment
• Solar cell power — Self-powered with no electrical connection required
• LoRaWAN connectivity — Wireless data link to the monitoring backend, refreshing every 16 seconds

The Flip-Dot display technology is key to the zero-maintenance proposition. Unlike LED displays that require continuous power and regular component replacement, Flip-Dot elements are mechanical — small discs that flip between black and white states, retaining their position without power. The display only consumes energy when updating (every 16 seconds via LoRaWAN), and the reflective coating ensures readability in direct sunlight without backlighting. Combined with the solar cell, this creates a truly install-and-forget outdoor beacon-style display with a 30-year operational lifespan.

This order scales to one or two signage units — enough for the entrances to Martin's primary parking zones. The LoRaWAN connectivity means the signage connects through the same gateway infrastructure that would serve Fleximodo LoRa parking sensors, creating a unified network where in-ground parking sensors handle parking occupancy detection and the digital parking signage communicates availability — the complete driver-facing loop of a full parking guidance system.

Fleximodo Digital Parking Signage: Technical Profile

Specification	Detail
Display type	High-contrast Flip-Dot with reflective coating
Configuration	3-digit (3-unit module)
Power source	Solar cell (self-powered)
Connectivity	LoRaWAN (16-second refresh)
Installation	Outdoor, wireless, no electrical connections
Lifespan	30 years
Maintenance	Zero (no external power required)
Operating temperature	-40 to +85 °C
Visibility	Reflective coating, readable in direct sunlight
Ingress protection	IP64

This signage is designed to pair with Fleximodo's underlying sensor layer — typically magnetometer parking sensors or dual detection technology combining magnetometer and radar — which is what actually performs parking occupancy detection at the space level. Those in-ground sensors also rely on automatic temperature compensation to hold their accuracy (up to 99.96%) steady across the same wide temperature range the signage itself is rated for (-40 to +85 °C): as ground and ambient temperatures swing, the sensor firmware continuously recalibrates the magnetometer's baseline so heat- or cold-induced magnetic-field drift doesn't get misread as a vehicle arriving or leaving. That accuracy upstream is what makes the numbers shown on the signage trustworthy.

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Fleximodo smart parking technology is deployed in 50+ countries. View all products | Explore Guidance Signage | BK — Slovak full-stack deployment with Flip-Dot signage | Telekom Slovenije — Flip-Dot signage with OPEX-free sensors

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Frequently Asked Questions

What is IoMobility Solutions? A Martin-based Slovak micro-enterprise developing data-driven urban mobility solutions through its "Internet of Mobility Ecosystem." The company integrates 100+ IoT products — sensors, signage, connectivity, and platforms — into customised smart city deployments for Slovak municipalities, with Martin as its primary deployment and demonstration city.

What is Fleximodo Flip-Dot parking guidance signage? A solar-powered, wireless outdoor digital parking signage unit showing real-time parking availability in up to three digits. The Flip-Dot technology uses mechanical elements that retain their state without power, only consuming energy during updates (every 16 seconds). Combined with solar cells, this creates zero-maintenance signage with a 30-year lifespan — readable in direct sunlight with no electrical connection needed.

Does the signage work standalone or need sensors? The signage displays parking counts received via LoRaWAN from the monitoring backend. To show accurate real-time availability, it needs a data source — typically Fleximodo in-ground parking sensors (LoRa parking sensors using magnetometer or dual detection technology) monitoring the parking zone. Together, sensors provide the occupancy data and signage communicates it to drivers — completing the real-time parking guidance system loop.

What is automatic temperature compensation? Automatic temperature compensation is firmware-level calibration in Fleximodo's magnetometer parking sensors that continuously adjusts the sensor's magnetic-field baseline as ambient and ground temperatures change. Heat and cold can otherwise cause a magnetometer's readings to drift, risking false vehicle-present or vehicle-absent readings. By compensating for temperature in real time, the sensors maintain accuracy of up to 99.96% across extreme operating ranges, which is what keeps data feeding into signage like this deployment reliable.

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