heise-Angebot: CO2-Warner für die Schule from Heise's blog
Wann es an der Zeit ist, die Fenster aufzureißen, kann eine selbstgebaute CO2-Ampel anzeigen. Die Bauanleitung gibt's in der neuen Make 5/20.
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| By | Heise |
| Added | Oct 1 '20, 04:19PM |
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