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correct calc energy consumed

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Glyn Hudson 2016-10-30 19:43:48 +00:00 committed by GitHub
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@ -13,11 +13,16 @@
| Sleep Current | 0.02uA | 0.06uA | 15uA | 750 times less power | 0.1uA - 0.3uA |
| Measurement Current | 0.045mA | 0.09 mA | 0.5mA | 11 times less power | 0.714mA - 0.350mA |
| Measurement time | 0.01s - 0.0026s | 0.01s - 0.0026s | 2s | 200 times faster | 0.013s |
| Energy consumed per sample | 0.00045mW || 1mW | 2222 times less power | |
| Energy consumed per sample | 1.5uJ | 2.97uJ | 3300uK | 2000 times less power | |
| Time sampling per day* | 14.4s || 2800s | | |
| Time sleeping per day* | 86386s || 83600s | | |
| Energy consumed per day* | 2.36mW [1] || 2836mW [2] | 1201 times less energy per day! | |
```
energy consumed (joule, J) = potential difference (volt, V) × charge (coulomb, C)
charge (coulomb, C) = current (ampere, A) × time (second, s)
energy consumed (joule, J) = potential difference (volt, V) × current (ampere, A) × time (second, s)
```
## Energy consumed per day*
@ -27,3 +32,4 @@
\*Assuming 1 sample per min and sleeping in between samples, 1440 min per day = 86400s per day
[Adafruit HTU21D Library](https://github.com/adafruit/Adafruit_HTU21DF_Library)