- MOUNT PARAMETERS
Device::Chip::MCP4725 - chip driver for MCP4725
use Device::Chip::MCP4725; my $chip = Device::Chip::MCP4725->new; $chip->mount( Device::Chip::Adapter::...->new )->get; # Presuming Vcc = 5V $chip->write_dac_ratio( 1.23 / 5 )->get; print "Output is now set to 1.23V\n";
This Device::Chip subclass provides specific communication to a Microchip MCP4725 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
HASH reference containing the chip's current configuration
RDY => 0 | 1 POR => 0 | 1 PD => "normal" | "1k" | "100k" | "500k" DAC => 0 .. 4095 EEPROM_PD => "normal" | "1k" | "100k" | "500k" EEPROM_DAC => 0 .. 4095
$chip->write_dac( $dac, $powerdown )->get
Writes a new value for the DAC output and powerdown state in "fast" mode.
$powerdown is optional and will default to 0 if not provided.
$chip->write_dac_ratio( $ratio )->get
Writes a new value for the DAC output, setting it to normal output for a given ratio between 0 and 1.
$chip->write_dac_and_eeprom( $dac, $powerdown )
As "write_dac" but also updates the EEPROM with the same values.
Paul Evans <email@example.com>