proiecte:environment-monitoring
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proiecte:environment-monitoring [2018/06/07 16:31] cristian.cocioaba [Optimizing power consumption] |
proiecte:environment-monitoring [2018/06/07 16:37] (current) cristian.cocioaba headers |
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| ===== Gathering data ===== | ===== Gathering data ===== | ||
| - | === Temperature and humidity === | + | ==== Temperature and humidity |
| <code cpp> | <code cpp> | ||
| Line 79: | Line 79: | ||
| </ | </ | ||
| - | === Battery === | + | ==== Battery |
| <code cpp> | <code cpp> | ||
| typedef float sensor_battery_t; | typedef float sensor_battery_t; | ||
| Line 85: | Line 85: | ||
| ===== Usage === | ===== Usage === | ||
| - | === Software serial example on Sparrow === | + | ==== Software serial example on Sparrow |
| <code cpp> | <code cpp> | ||
| #include < | #include < | ||
| Line 134: | Line 134: | ||
| Although both protocols operate at 2.4 GHz frequency, 802.15.4 is low-speed and low-rate and ATmega128RFA1 has Ultra Low Power consumption as we can see below. | Although both protocols operate at 2.4 GHz frequency, 802.15.4 is low-speed and low-rate and ATmega128RFA1 has Ultra Low Power consumption as we can see below. | ||
| - | == ATmega128RFA1 power consumption == | + | === ATmega128RFA1 power consumption === |
| {{: | {{: | ||
| - | == ESP8266 power consumption when radio is on == | + | === ESP8266 power consumption when radio is on === |
| In contrast, ESP8266 has more processing power and together with the power required by the bandwidth and data rate of Wi-Fi, it utilizes almost 10 times more energy, as we can see below. | In contrast, ESP8266 has more processing power and together with the power required by the bandwidth and data rate of Wi-Fi, it utilizes almost 10 times more energy, as we can see below. | ||
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| This a good improvement over the previous consumption when running continuously, | This a good improvement over the previous consumption when running continuously, | ||
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| ===== Optimizing power consumption ===== | ===== Optimizing power consumption ===== | ||
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| As we can see in the figure below, the first peak was eliminated, and the connection time was reduced. | As we can see in the figure below, the first peak was eliminated, and the connection time was reduced. | ||
| - | {{ : | + | {{: |
| The total power consumption for a cycle is now down to: | The total power consumption for a cycle is now down to: | ||
proiecte/environment-monitoring.1528378307.txt.gz · Last modified: 2018/06/07 16:31 by cristian.cocioaba
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