Category Archives: Strom und Spannung

ESP32/BME280 based Weather Station that pushes data to MySQL database and displays and graphs it

Posted on January 6, 2020 by Tommi

This article describes a weather station I created that uses ESP32s with BME280 sensors to push temperature, humidity and air pressure to a web server where it is displayed online. The local sensors upload data every minute to an online … Continue reading →

Posted in Home Improvement, Strom und Spannung | Leave a comment

Temperature 144 led/m Neopixel WS2812

Posted on February 6, 2015 by Tommi

Use a Digital Temperature Sensor to Control the Temperature of a Neopixel / WS2812B Strip Recently, I started playing with the Neopixel (WS2812B) individually addressable digital led strips. For the project I have in mind the tightly packed 144 led … Continue reading →

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Yearly Temperature in New Haven, CT, USA

Posted on February 6, 2015 by Tommi

For some time now I am logging the outside and also my indoor temperatures at my home in New Haven, Connecticut, USA. To record the data I built a weather station (eventually I should write about that too…..) that records … Continue reading →

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Car inside and outside temperature sensor

Posted on June 24, 2014 by Tommi

Make it yourself if the car does not have it. The Nissan Versa 2009 I bought does not have an outdoor temperature sensor and the radio did not allow to connect the phone to it. That was both somewhat annoying … Continue reading →

Posted in Strom und Spannung | 5 Comments

Stirnlampe

Posted on February 23, 2012 by Tommi

Selbstbau mit 500+ Lumen Die Stirnlampe ist das erste wirkliche Gemeinschaftsproject von Chris und mir. Schon vor ein paar Monaten begannen wir uns zu überlegen, wie wir eine Stirnlampe selbst bauen könnten. Wichtig waren uns vor allem die folgenden Punkte: … Continue reading →

Posted in Strom und Spannung | Tagged | 4 Comments

Alternativen zu Eneloop

Posted on January 7, 2012 by Tommi

Turnigy LSD Akkus aus China   Auf der Suche nach billigeren Akkus zu den “klassischen” Eneloops bin ich auf Hobbyking.com aus China gestoßen, die auch hochwertige Akkus produzieren sollen. Wichtig war mit neben einer hohen Kapzität auch dass sie diese … Continue reading →

Posted in Strom und Spannung | Tagged | 11 Comments