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projets:fuz:operame [2021-11-14 14:27] – created Lomanic | projets:fuz:operame [2021-11-14 18:03] – [Goals] Lomanic |
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* Implement [[https://operame.nl/Operame|Operame]], a project from the Dutch hackerspace [[https://revspace.nl|Revspace]] using a CO2 sensor coupled to a TTGO T-Display to tell people in a room that they should open the windows to limit Covid-19 aerial spread indoors | * Implement [[https://operame.nl/Operame|Operame]], a project from the Dutch hackerspace [[https://revspace.nl|Revspace]] using a CO2 sensor coupled to a TTGO T-Display to tell people in a room that they should open the windows to limit Covid-19 aerial spread indoors |
* Document it in English | * Document it in English |
* Maybe extend it in some way (automatic VAC system?) | * Maybe extend it in some way (automatic ventilation system?) |
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===== Hardware ===== | ===== Hardware ===== |
* [[https://www.aliexpress.com/item/33048962331.html|LILYGO® TTGO T-Display]], ''16MB CH340K Chip'' variant | * [[https://www.aliexpress.com/item/33048962331.html|LILYGO® TTGO T-Display]], ''16MB CH340K Chip'' variant |
* [[https://www.aliexpress.com/item/1005001947070873.html|Winsen MH-Z19C NDIR CO2 Sensor]], ''400-2000ppm-Pin Ver.'' variant, difficulty was to buy a genuine version as mentioned on the [[https://operame.nl/Hardware|Hardware page]], the tip is to buy from Winsen official store even if costlier | * [[https://www.aliexpress.com/item/1005001947070873.html|Winsen MH-Z19C NDIR CO2 Sensor]], ''400-2000ppm-Pin Ver.'' variant, difficulty was to buy a genuine version as mentioned on the [[https://operame.nl/Hardware|Hardware page]], the tip is to buy from Winsen official store even if costlier |
| * [[https://www.aliexpress.com/item/32861400498.html|through-hole header pins]] (bought years ago, look around for cheaper options) |
| * [[https://www.aliexpress.com/item/32546265487.html|perfboard]] (bought years ago, look around for cheaper options) |
| * solid core wire (left overs from other projects) |
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As I won't order PCBs online (and specific SMD sockets as shown in [[https://www.youtube.com/watch?v=kRH15L6IbI8|soldering instructions video]]) and just use what I have at hand, it will be assembled on a perfboard I had in my drawer for years. | As I won't order PCBs online (and specific SMD sockets as shown in [[https://www.youtube.com/watch?v=kRH15L6IbI8|soldering instructions video]]) and just use what I have at hand, it will be assembled on a perfboard I had in my drawer for years. |
{{:projets:fuz:operame:img_20211114_123700.jpg?200|The Operame device is shown mounted on temporary breadboards with bridges made of Dupont wires as a proof of concept}} | {{:projets:fuz:operame:img_20211114_123700.jpg?200|The Operame device is shown mounted on temporary breadboards with bridges made of Dupont wires as a proof of concept}} |
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| {{:projets:fuz:operame:img_20211114_171043.jpg?200|Perfboard implementation, front}} |
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| {{:projets:fuz:operame:img_20211114_171053.jpg?200|Perfboard implementation, back}} |
===== Log ===== | ===== Log ===== |
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Initial proof of concept with breadboard, everything works perfectly. | Initial proof of concept with breadboard, everything works perfectly. |
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| Perfboard implementation |
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===== Planned ===== | ===== Planned ===== |
* put this on a [[wp>perfboard]], for once! | |
* deploy it somewhere? (at Fuz or at Lomanic's office) | * deploy it somewhere? (at Fuz or at Lomanic's office) |
* automatic VAC system (if at Fuz)? | * automatic VAC system (if at Fuz)? |
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