Battery

Introduction

The battery class is derived from the brain base class and provides access to the IQ (2nd gen) Brain’s battery, allowing your robot to monitor capacity, voltage, current draw, power usage, temperature, and efficiency.

Access

Brain.Battery

Member Functions

The battery class includes the following member functions:

• capacity — Returns the remaining battery capacity.

• voltage — Returns the battery voltage.

• current — Returns the battery current draw.

Before calling any battery member functions, a brain instance must be created, as shown below:

// Create the Brain
brain Brain = brain();

capacity

Returns the remaining capacity of the IQ (2nd gen) Brain battery.

Available Functions

uint32_t capacity( percentUnits units = percentUnits::pct );

Parameters

Parameter	Type	Description
units	percentUnits	Optional. The unit used to represent battery capacity: pct / percent — percent

Return Values

Returns a uint32_t representing the remaining battery capacity as a percentage from 0 to 100.

voltage

Returns the voltage of the IQ (2nd gen) Brain battery.

Available Functions

double voltage( voltageUnits units = voltageUnits::volt );

Parameters

Parameter	Type	Description
units	voltageUnits	Optional. The unit used to represent voltage: volt (default) — volts mV — millivolts

Return Values

Returns a double representing the battery voltage in the specified units.

current

Returns the electrical current drawn from the IQ (2nd gen) Brain battery.

Available Functions

double current( currentUnits units = currentUnits::amp );

Parameters

Parameter	Type	Description
units	voltageUnits	Optional. The unit used to represent current: amp (default) — amperes

Return Values

Returns a double representing the electrical current drawn from the IQ (2nd gen) Brain battery in amperes.