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| en:iot-open:hardware2:powering [2023/11/21 21:28] – pczekalski | en:iot-open:hardware2:powering [2024/03/05 14:12] (current) – pczekalski | ||
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| - | ====== Powering of the IoT devices | + | ====== Powering of the IoT Devices |
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| IoT requires a constant and reliable power source to operate devices, sensors, and communication effectively. The choice of power source for IoT devices is from traditional batteries to cutting-edge energy harvesting technologies. | IoT requires a constant and reliable power source to operate devices, sensors, and communication effectively. The choice of power source for IoT devices is from traditional batteries to cutting-edge energy harvesting technologies. | ||
| The factors influencing the choice are: | The factors influencing the choice are: | ||
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| <note tip>When dealing with high current, high voltage or high inference devices, it is expected to use physical separation of the signals with means of e.g. optocouplers.</ | <note tip>When dealing with high current, high voltage or high inference devices, it is expected to use physical separation of the signals with means of e.g. optocouplers.</ | ||
| - | During their operation, IoT devices commonly control their power sources regarding their condition (e.g., remaining energy, ageing symptoms). In the simplest case, the battery terminal can be connected to the A/D GPIO (usually via a voltage divider). It is also expected to measure battery drain, constantly monitoring both current and voltage, thus calculating energy consumed. Battery Management Systems can be a stand-alone module or can be a part of the IoT device. In the first case, using some communication protocol to monitor power source status is required (e.g. Serial or I2C). IoT devices | + | During their operation, IoT devices commonly control their power sources regarding their condition (e.g., remaining energy, ageing symptoms). In the simplest case, the battery terminal can be connected to the A/D GPIO (usually via a voltage divider). It is also expected to measure battery drain, constantly monitoring both current and voltage, thus calculating energy consumed. Battery Management Systems can be a stand-alone module or can be a part of the IoT device. In the first case, using some communication protocol to monitor power source status is required (e.g. Serial or I2C). IoT devices can then inform the IoT ecosystem about, e.g., approaching running out of power. They can also limit their energy consumption by switching to sleep mode. |
| <WRAP excludefrompdf> | <WRAP excludefrompdf> | ||
