DAKboard external data — using Home Assistant

DAKboard external data — using Home Assistant

Earlier this year I put up a Raspberry Pi powered DAKboard display. It shows photos from our Google Photos albums, the time and weather, and most importantly; our shared calendar.

But I’d like it to show some custom data as well — like indoor temperature and humidity. And the measured outdoor temperature, not just the one reported from the weather service.

Here is how I did that — using Home Assistant 👇

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Home office ventilation — controlled by CO₂ level

Home office ventilation — controlled by CO₂ level

I recently watched Jeff Gerling’s video on CO₂ levels, and how to monitor it. My home office is also in the basement, with no windows. So I paid attention to the air quality when setting up down here.

In addition to monitoring the CO₂ level, I’m also automatically ventilating the space when the air quality gets too bad.

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Raspberry Pi with DS18B20 temperature sensors

Raspberry Pi with DS18B20 temperature sensors

I made a simple HAT (Hardware Attached on Top) for the Raspberry Pi to read multiple DS18B20 temperature sensors — it was surprisingly easy. I used the measured temperatures to control a fan using Home Assistant.

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Kids alarm module, Raspberry Pi Zero, and MQTT

Kids alarm module, Raspberry Pi Zero, and MQTT
A kids alarm module, with buttons and lights. Powered by a Raspberry Pi Zero, connected to WiFi and MQTT.
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Making a WiFi MQTT controlled relay for Home Assistant

Making a WiFi MQTT controlled relay for Home Assistant
Making a single relay controlled with WiFi MQTT from Home Assistant, using WeMos D1 mini board.
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