Technical

Multi-IMSI SIM explained: how we guarantee connectivity for IoT devices

A deep dive into the proprietary applet that silently switches between carriers without a device reboot.

AK
Ana Kovač·Feb 2026·8 min read
Compliance

PCI DSS Level 1 for unattended terminals: what operators need to know

Breaking down the specific requirements for vending, parking, and laundromat payment acceptance.

MD
Marco Diaz·Jan 2026·6 min read
Product

IOT-D Mini: the world's smallest PCI-certified payment module

Design story behind our new embedded module — from breadboard prototype to CE/PCI certified production.

RF
Rui Ferreira·Dec 2025·4 min read
Industry

EV charging payments: the next unattended frontier

Why EV charge-point operators are turning to IoT payment infrastructure rather than traditional POS.

AK
Ana Kovač·Nov 2025·7 min read
Technical

MQTT vs REST for IoT telemetry: a practical comparison

We tested both protocols across 1,000 deployed devices. Here's what the data says.

MD
Marco Diaz·Oct 2025·10 min read