Techniccontroller
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raspberry pi

Raspberry Pi

MQTT with TLS: Secure Communication from Node-RED to Server

This post is a complete guide on how to set up secure communication from a local Node-RED server to a server on the public internet using TLS-encrypted MQTT messages. In my concrete case, I have a Raspberry Pi running Node-RED to collect data from multiple sensors in my local network. Read more…

By Techniccontroller, 6 months08/04/2023 ago
Raspberry Pi

Drink Water Reminder with Raspberry Pi Pico

I built a small project to test the Raspberry Pi Pico with the Pico LCD 1.3 module. This turns out to be a very nice gift for any person who sits in the office all day. The device will remind every 30 minutes to drink water. You can connect it Read more…

By Techniccontroller, 9 months01/01/2023 ago
Raspberry Pi

3D-Printed Robotic Hand – Raspberry Pi Pico

I developed a 3D-printed robotic hand during my studies at the Technical University of Munich. I used a 3D printer to build the mechanical parts and a Raspberry Pi Pico for controlling the motors. Background Every four years, ETH Zurich organizes the CYBATHLON competition (cybathlon.ethz.ch), in which teams from all Read more…

By Techniccontroller, 12 months02/10/2022 ago
Raspberry Pi

Read Data from a Wood Boiler and Save it in MySQL

This project is part of a larger project to collect and visualize data from a heating system in my house. The heating system consists of several heating sources (wood, heat pump, solar system, and oil) and two large heating circuits (two buildings). In this post, I would like to present Read more…

By Techniccontroller, 2 years10/03/2022 ago
Raspberry Pi

How-To: Install Docker on Raspberry Pi

In this post, I shortly describe how to install Docker on Raspberry Pi 4 running Raspian Buster. There are many tutorials available describing the process, but I faced always an error when trying to install Docker on my Raspberry Pi 4. So I share here how I got Docker finally Read more…

By Techniccontroller, 2 years10/07/2021 ago
Robotic

MOBROB: ROS Software Architecture

After I presented the hardware architecture in an earlier article, I want to dedicate this article to the software architecture of my mobile robot MOBROB. The software architecture is based on Robot Operating System (ROS), which allows me to extend the robot very modularly by functions. There are a lot Read more…

By Techniccontroller, 2 years14/05/2021 ago
Raspberry Pi

Control Shelly from LOGO! via Node-RED

In this article, I document the few steps necessary to control the Wi-Fi switch Shelly 1 with a Siemens LOGO! 8. For this we use the help of the tool Node-RED, which is described on the own website as follows and is therefore perfectly suited for our use-case: Node-RED is Read more…

By Techniccontroller, 3 years28/06/2020 ago
Arduino

MOBROB: OTA Update for Arduino

With this post, I want to start with the description of the software for my mobile robot. One of the first things I’m setting up in the software is an OTA (Over the Air) update function for all my components on the robot. That means besides the Raspberry Pi, I Read more…

By Techniccontroller, 3 years19/04/2020 ago
Arduino

MOBROB: There is a Gripper Unit now!

After a long time has passed, here is an update on the current major project MOBROB. My completely self-built mobile robot. In the last post, I introduced the basic functions. The next step is to place the complete electronics nicely on the robot, so that there is still enough space Read more…

By Techniccontroller, 3 years13/04/2020 ago
Arduino

Stream Video from Raspberry Pi to Java-Application via TCP

Table of Contents Introduction Java-Application Python TCP Server on Raspberry Pi Result: Stream video from Raspberry Pi to Java-Application During the development of my mobile robot, I was confronted with the problem of how to transmit the video stream of the robots webcam to my central Java-Application. The structure looks Read more…

By Techniccontroller, 4 years26/10/2019 ago

Posts navigation

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Recent Posts
  • MQTT with TLS: Secure Communication from Node-RED to Server
    Raspberry Pi
  • Drink Water Reminder with Raspberry Pi Pico
    Raspberry Pi
  • 3D-Printed Robotic Hand – Raspberry Pi Pico
    Raspberry Pi, Robotic
  • 7-Segment Display with APA102 LEDs and ESP8266
    Arduino
  • SMART LED LAMP: Getting Started with ESP8266
    Arduino
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3d print android app arduino attiny bc547 bluetooth diy esp8266 fitness flashing gym hc-05 hinges house ionic 3 led light matrix mobile robot MOBROB model mosfet MQTT neopixel node-red pla python raspberry pi rgb robot robot hand ros safeshutdown servo sport timer truck usb usv watch webcam wordclock ws2812b zero



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