Johannes' Blog
  • Home
  • Blog
    • All tags
    • Software Engineering
    • Swift
    • Python
    • Open Source Projects
    • Linux
    • Research
    • Archive
  • |
  • My Apps
    • WebServerMonitor (WebSMoni)
    • SiincosCharge
  • My Libs
    • SimpleKiiManager (for Keychain)
    • ThingsBoard Client API (Swift)
    • TinyTBDeviceClient
  • |
  • Consulting & Development
  • About me

Post for: #IoT (4 Posts)

Insights, tutorials, and real-world use cases from my work in the Internet of Things – from smart sensors to cloud integration and practical deployment tips.

SiincosCharge: Open-Source, Privacy-First EV Charging Management

24 October 2026 Johannes Kinzig
IoT Linux My Apps Open Source Projects Swift
SiincosCharge Web showing a charging point while a vehicle is plugged in and charging: about 7 kW power and 4.42 kWh energy consumed so far
SiincosCharge Web showing a charging point while a vehicle is plugged in and charging: about 7 kW power and 4.42 kWh energy consumed so far

SiincosCharge is an open-source management system for EV charging points. It consists of an edge component written in Swift that runs on a Linux-based device…

Read more →

Building IoT Device Clients in Swift with TinyTBDeviceClient

18 February 2026 Johannes Kinzig
IoT Linux My Libs Open Source Projects
Title image for TinyTBDeviceClient, showing a Raspberry Pi client device connected to a ThingsBoard server with an IoT dashboard in the background. A glowing padlock indicates a secure connection.
Title image created by the author using AI image generation tools.

As I work a lot in the field of IoT, I recently experimented with Swift on a Raspberry Pi. I also wanted to use it…

Read more →

Building a Secure PKI for MQTT using OpenSSL: Root CA, Intermediate CA, and Server Certificates

3 February 2026 Johannes Kinzig
IoT Linux macOS Software Engineering
Designing a Modern PKI for MQTT with OpenSSL (EC, RSA, and Certificate Chains)
Title image created by the author using AI image generation tools.

Transport security is a fundamental requirement for any MQTT-based system, especially in IoT and industrial environments where devices often operate unattended and over public networks.

Read more →

TBRESTClientLib – A ThingsBoard API Client written in Swift

26 February 2025 Johannes Kinzig
IoT My Libs Open Source Projects Software Engineering
TBRESTClientLib – an abstract picture showing computers, smartphones, tablet PCs and smart devices being interconnected
Title image created by the author using AI image generation tools.

Implementation of ThingsBoard’s ReST client API – written in Swift: When developing IoT and IIoT solutions, having a reliable IoT platform is crucial. For both…

Read more →

Legal Notice | Privacy Policy | Mailing List | Let's Connect

© 2026 by Johannes Kinzig – Made with 💜 in Bavaria, Germany