In the past months, I developed firmware for a few Adafruit Feather M0 based projects. The reason why I use the Adafruit Feather platform, instead of using an MCU directly, is for modularity. By using a board on sockets, it can be replaced at any later time with a more powerful one – or by…
Category: Projects
This category contains all projects.
Tiny Particle Sensor Node with Decorative Case
This article is about a small sensor node with a decorative case. It is based on the Raspberry Pi Zero W board with a custom sensor shield on top. I publish all hardware files for a simple version of the sensor, so you should be able to build this kind of sensor nodes and use…
Snowflake Project Documentation
I wrote a short page about the snowflake project from the end of 2017. On the page, you will find a summary of the project and the link to the repository with all the required files. Everything is open-source, including the design files for the hardware and a base version of the firmware for the…
Testing the TPS61092 Boost Converter
For my current project I searched for a good boost power converter which is able to deliver continuous 400mA power for various sensors. There are an endless number of good boost converters around, but not many can be hand soldered to a board. I would really like to see some like the TPS61092 with SOIC…
Snowflake Power Converter
I designed a very simple power converter for the snow flake decoration. The snow flake boards require 3.3V, a voltage which is not commonly available in a household. Therefore the power converter takes 5V USB power and convert it into the required 3.3V. There is no fancy circuit inside of this box, lazily I simple…
Snowflake Component Side
Today I show you a little bit longer video about the assembly of the component side of the snowflake panel. Compared with the very small 0402 LEDs (1mm x 0.5mm) on the front side, the component side contains just regular 0805 resistors and capacitors. The first part of the video shows how I apply the…
Perfect Prototype Boards from Eurocircuits
Today prototype boards from Eurocircuits arrived. The quality of this boards is outstanding. I do not know any other board house which delivers this incredible quality of boards. They really thrive for perfection.
Cat Feeder in Action
Recently I finished a small cat feeding device. Meanwhile I added some minor missing parts, like an USB port which can be used to charge the device. I also added a larger battery to keep the device running for months without charging. Here a short video demonstration of the project: Read more about the project…
Cat Feeder Device (Quick Build)
I finished a very simple and quick project recently. It is a programmable cat feeder device. The device is just made for one single portion, but it uses this slide which produces the distinctive sound if the pellets hit the bowl. It is no replacement for the usual feeding of the cat, but some flexible…
Plant Watering Sensor Files
There was a long delay with no update about my projects. The reason for this is, I focused on other non electronic related projects. I promised to publish all files and information about the plant watering sensor project in August, and here are all the files. First some Important Notes Even with these files, it…