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36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
#pragma once
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/**
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* Per @spattinson
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* MIN_BAT_MILLIVOLTS seems high. Typical 18650 are different chemistry to LiPo, even for LiPos that chart seems a bit off, other
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* charts put 3690mV at about 30% for a lipo, for 18650 i think 10% remaining iis in the region of 3.2-3.3V. Reference 1st graph
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* in [this test report](https://lygte-info.dk/review/batteries2012/Samsung%20INR18650-30Q%203000mAh%20%28Pink%29%20UK.html)
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* looking at the red line - discharge at 0.2A - he gets a capacity of 2900mah, 90% of 2900 = 2610, that point in the graph looks
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* to be a shade above 3.2V
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*/
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#define MIN_BAT_MILLIVOLTS 3250 // millivolts. 10% per https://blog.ampow.com/lipo-voltage-chart/
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#define BAT_MILLIVOLTS_FULL 4100
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#define BAT_MILLIVOLTS_EMPTY 3500
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namespace meshtastic
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{
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/// Describes the state of the power system.
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struct PowerStatus {
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/// Whether we have a battery connected
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bool haveBattery;
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/// Battery voltage in mV, valid if haveBattery is true
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int batteryVoltageMv;
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/// Battery charge percentage, either read directly or estimated
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int batteryChargePercent;
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/// Whether USB is connected
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bool usb;
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/// Whether we are charging the battery
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bool charging;
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};
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} // namespace meshtastic
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extern meshtastic::PowerStatus powerStatus;
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