- MOUNT PARAMETERS
Device::Chip::INA219 - chip driver for an INA219
use Device::Chip::INA219; my $chip = Device::Chip::INA219->new; $chip->mount( Device::Chip::Adapter::...->new )->get; printf "Current bus voltage is %d mV, shunt voltage is %d uV\n", $chip->read_bus_voltage->get, $chip->read_shunt_voltage->get;
This Device::Chip subclass provides specific communication to a Texas Instruments INA219 attached to a computer via an I²C adapter.
The reader is presumed to be familiar with the general operation of this chip; the documentation here will not attempt to explain or define chip-specific concepts or features, only the use of this module to access them.
The I²C address of the device. Can be specified in decimal, octal or hex with leading
The following methods documented with a trailing call to
->get return Future instances.
$config = $chip->read_config->get
Reads and returns the current chip configuration as a
$chip->change_config( %config )->get
Changes the configuration. Any field names not mentioned will be preserved.
$uv = $chip->read_shunt_voltage->get
Returns the current shunt voltage reading scaled integer in microvolts.
$mv = $chip->read_bus_voltage->get ( $mv, $ovf, $cnvr ) = $chip->read_bus_voltage->get
Returns the current bus voltage reading, as a scaled integer in milivolts.
The returned Future also yields the OVF and CNVR flags.
Paul Evans <email@example.com>