Category Archives: HomeAutomation

Smart Wifi Switch – Tasmota på Sonoff RE5V1C

Posted on October 28, 2024 by peter

Hvordan jeg installerer Tasmota på Sonoff RE5V1C, en 5v wifi switch. Se også Mit indlæg: Smart Wifi Switch – Tasmota på Sonoff Basic GitHub: arendst/Tasmota Tasmota.GitHub.io: Sonoff RE5V1C 5V Inching/Selflock Relay Board Tasmota firmware installeres på Dimsen via RS232, Dimsen … Continue reading →

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Smart Wifi Switch – Tasmota på Sonoff Dual R3 Lite

Posted on October 27, 2024 by peter

Hvordan jeg installerer Tasmota på Sonoff Dual R3 Lite, der fås for omkring 100kr på f.ex. Amazon.de Se også Mit indlæg: Smart Wifi Switch – Tasmota på Sonoff Basic GitHub: arendst/Tasmota Tasmota.GitHub.io: Sonoff-Dual templates.blakadder.com: sonoff_DUALR3L Tasmota firmware installeres på Dimsen … Continue reading →

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Smart Wifi Switch – Tasmota på Sonoff Basic

Posted on October 25, 2024 by peter

Jeg har efterhånden en del Wifi baserede IOT dimser, desværre kommer de altid med  firmware der ringer hjem til producenten for at høre om der er nye instruktioner, der er sådan set ikke noget nyt i dette, har du en … Continue reading →

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Hydronic Underfloor Heating – Control

Posted on November 29, 2023 by peter

The underfloor heating supply temperature varies between 22 and 40 Celcius (72 – 104 Fahrenheit) the colder it is, the warmer the floor needs to be to heat the house. We adjust the supply temperature manually, if it is too … Continue reading →

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Hydronic Underfloor Heating – Supply side

Posted on June 14, 2023 by peter

Years ago, in our previous house, I described how I monitored the return temperatures from our underfloor heating system Raspberry PI and OneWire temperature sensors. Here I will describe the supply side of our current Hydronic Heating System. The next … Continue reading →

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Server Power supply DPS-750TB

Posted on July 7, 2020 by peter

and how to get PMBus access from f.ex. a Raspberry Pi My favorite power-supply for almost anything is the Server PSU for Dell R510/R710/R910. It is a 750w 12v 60amp supply with 80-plus-gold standard,  you can get them for $10-20 … Continue reading →

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Server Power supply DPS-1200FB

Posted on July 6, 2020 by peter

Among hackers the DPS-1200FB seem to be the most popular choice for a powerfull Server PowerSupply 12volt 100Amp for less than $20 delivered. There is a lot of information available for this PSU.  So if you want to really get … Continue reading →

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Node Red

Posted on April 29, 2018 by peter

Først skal vi have fat Node-js version 8, check om du har den eller en ældre version med node -v https://nodejs.org/en/download/package-manager For de modige, og borderline-lazy, under ubuntu/debian: curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash – sudo apt-get install -y … Continue reading →

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MySensors

Posted on April 26, 2018 by peter

Jeg har i lang tid kigget efter et frame-work til at konsolidere mine sensorer. I mange år har jeg brugt Raspberry Pi til at monitorere temperaturen i vores gulv-varme system som jeg har beskrevet i Raspberry Pi and Onewire Temperature … Continue reading →

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Fra Eagle til Kicad – PCB-design

Posted on March 1, 2017 by peter

Stort set alle de print-plader jeg har lavet i nyere tid har jeg designed i Eagle, som hidtil har udmærket sig ved at man kunne designe (ikke kommercielt) små print (8cm x 10 cm) i to-lag uden at skulle investere i … Continue reading →

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