eolab:products:plant_pot_scale
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eolab:products:plant_pot_scale [2024/02/28 14:28] – [Operation] henrik.schoofs | eolab:products:plant_pot_scale [2024/05/17 11:06] (current) – [First Prototype] henrik.schoofs | ||
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Goal: Development of Wifi or BLE enabled scale to measure the weight of plant pots for an experiment of Anna-Lea. | Goal: Development of Wifi or BLE enabled scale to measure the weight of plant pots for an experiment of Anna-Lea. | ||
- | ===== Range Estimation ===== | + | | {{: |
+ | | Anna-Lea' | ||
+ | |||
+ | ===== Weight | ||
The intended pot size has $d = 20\, \mathrm{cm}$ diameter and a volume of $V = 7.5\, \mathrm{L}$. | The intended pot size has $d = 20\, \mathrm{cm}$ diameter and a volume of $V = 7.5\, \mathrm{L}$. | ||
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- | ==== First Prototype ==== | + | ===== First Prototype |
- | {{ : | + | {{ : |
- | {{ : | + | {{ : |
+ | {{ : | ||
Hardware: | Hardware: | ||
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|{{ : | |{{ : | ||
|Graph over a few days with varying weights| | |Graph over a few days with varying weights| | ||
+ | In our laboratory with a relative stable temperature the reading fluctuated by around 2 grams. | ||
=== Hardware Setup === | === Hardware Setup === | ||
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=== Power Consumption === | === Power Consumption === | ||
- | Current consumption while measuring and sending is around 80mA for 1.8 seconds: | + | |
- | {{ : | + | |{{ : |
- | Current consumption while in deepsleep | + | |Current consumption while measuring and sending |
- | {{ : | + | |
+ | |{{ : | ||
+ | |Current consumption while in deepsleep is around 9µA| | ||
+ | |||
+ | |||
+ | === Code === | ||
+ | |||
+ | [[https:// | ||
+ | |||
+ | [[https:// | ||
+ | === Next Steps === | ||
+ | |||
+ | * bigger and water-resistant plates for the scale | ||
+ | * small pcb (with battery monitoring) and water resistant case for the electronics | ||
+ | * clean up code |
eolab/products/plant_pot_scale.1709126892.txt.gz · Last modified: 2024/02/28 14:28 by henrik.schoofs