SolarMonitor Class Reference

Solar power monitoring handler. More...

#include <solar.h>

Collaboration diagram for SolarMonitor:

Static Public Member Functions
static void	begin ()
	Setup INA219 IC to monitoring battery voltage and current. More...
static double	get_voltage ()
	Get the voltage of the solar. More...
static float	get_current ()
	Get the current flowing from the solar panel. More...
static void	sleep ()
	Puts the INA219 IC in a sleep mode. More...
static void	wakeup ()
	Wakes up the INA219 IC. More...

Static Private Attributes
static const uint8_t	solarAddr = 0x40
	Default I2C solar address (cannot be changed without modifying PCB) More...

Detailed Description

Solar power monitoring handler.

A INA219 IC is used to monitor solar voltage and current. When using the Adafruit_INA219 library this IC requires a 1 ohm resistor across its positive and negative inputs.

See also

Library: https://github.com/adafruit/Adafruit_INA219

Datasheet: https://www.ti.com/lit/ds/symlink/ina219.pdf?ts=1673141206831

Member Function Documentation

begin()

void SolarMonitor::begin ( )

static

Setup INA219 IC to monitoring battery voltage and current.

As the solar panel has a maximum voltage of 21V a calibration factor is set to a lower resolution.

get_current()

float SolarMonitor::get_current ( )

static

Get the current flowing from the solar panel.

If the IC is not initialed this function will return -1.0.

Returns

Solar current.

get_voltage()

double SolarMonitor::get_voltage ( )

static

Get the voltage of the solar.

If the IC is not initialed this function will return -1.0.

Returns

Solar voltage.

sleep()

void SolarMonitor::sleep ( )

static

Puts the INA219 IC in a sleep mode.

The IC will consume around 6 uA when in sleep mode.

wakeup()

void SolarMonitor::wakeup ( )

static

Wakes up the INA219 IC.

Member Data Documentation

solarAddr

const uint8_t SolarMonitor::solarAddr = 0x40

staticprivate

Default I2C solar address (cannot be changed without modifying PCB)

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The documentation for this class was generated from the following files:

• firmware/wombat/include/power_monitoring/solar.h
• firmware/wombat/src/power_monitoring/solar.cpp