sforkowany z mirror/meshtastic-firmware
55 wiersze
1.7 KiB
C++
55 wiersze
1.7 KiB
C++
#pragma once
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#include "PowerStatus.h"
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#include "concurrency/OSThread.h"
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#ifdef ARCH_ESP32
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#include <esp_adc_cal.h>
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#include <soc/adc_channel.h>
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#endif
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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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#ifdef BAT_MEASURE_ADC_UNIT
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extern RTC_NOINIT_ATTR uint64_t RTC_reg_b;
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#include "soc/sens_reg.h" // needed for adc pin reset
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#endif
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class Power : private concurrency::OSThread
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{
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public:
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Observable<const meshtastic::PowerStatus *> newStatus;
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Power();
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void shutdown();
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void readPowerStatus();
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virtual bool setup();
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virtual int32_t runOnce() override;
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void setStatusHandler(meshtastic::PowerStatus *handler) { statusHandler = handler; }
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protected:
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meshtastic::PowerStatus *statusHandler;
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/// Setup a xpowers chip axp192/axp2101, return true if found
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bool axpChipInit();
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/// Setup a simple ADC input based battery sensor
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bool analogInit();
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private:
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uint8_t low_voltage_counter;
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#ifdef DEBUG_HEAP
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uint32_t lastheap;
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#endif
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};
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extern Power *power; |