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https://github.com/esphome/esphome.git
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b85c98abb4
Implements support for the TI TCAL6416 16-bit I2C I/O expander with the following features: - 16 GPIO pins (2 banks of 8) - Bidirectional I/O with configurable input/output modes - Support for inverted pins - Compatible with ESP32, ESP8266, and RP2040 platforms - I2C interface with configurable address (default: 0x20) The TCAL6416 provides higher current latched outputs suitable for directly driving LEDs or keypads. It operates at voltages from 1.08V to 3.6V and supports I2C speeds up to 1MHz. Addresses: https://github.com/orgs/esphome/discussions/3233
73 lines
1.9 KiB
Python
73 lines
1.9 KiB
Python
from esphome import pins
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import esphome.codegen as cg
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from esphome.components import i2c
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import esphome.config_validation as cv
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from esphome.const import (
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CONF_ID,
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CONF_INPUT,
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CONF_INVERTED,
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CONF_MODE,
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CONF_NUMBER,
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CONF_OUTPUT,
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)
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CODEOWNERS = ["@crgarcia12"]
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AUTO_LOAD = ["gpio_expander"]
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DEPENDENCIES = ["i2c"]
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MULTI_CONF = True
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tcal6416_ns = cg.esphome_ns.namespace("tcal6416")
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TCAL6416Component = tcal6416_ns.class_("TCAL6416Component", cg.Component, i2c.I2CDevice)
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TCAL6416GPIOPin = tcal6416_ns.class_("TCAL6416GPIOPin", cg.GPIOPin)
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CONF_TCAL6416 = "tcal6416"
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CONFIG_SCHEMA = (
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cv.Schema(
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{
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cv.Required(CONF_ID): cv.declare_id(TCAL6416Component),
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}
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)
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.extend(cv.COMPONENT_SCHEMA)
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.extend(i2c.i2c_device_schema(0x20))
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)
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async def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_component(var, config)
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await i2c.register_i2c_device(var, config)
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def validate_mode(value):
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if not (value[CONF_INPUT] or value[CONF_OUTPUT]):
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raise cv.Invalid("Mode must be either input or output")
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if value[CONF_INPUT] and value[CONF_OUTPUT]:
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raise cv.Invalid("Mode must be either input or output")
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return value
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TCAL6416_PIN_SCHEMA = pins.gpio_base_schema(
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TCAL6416GPIOPin,
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cv.int_range(min=0, max=15),
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modes=[CONF_INPUT, CONF_OUTPUT],
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mode_validator=validate_mode,
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invertible=True,
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).extend(
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{
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cv.Required(CONF_TCAL6416): cv.use_id(TCAL6416Component),
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}
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)
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@pins.PIN_SCHEMA_REGISTRY.register(CONF_TCAL6416, TCAL6416_PIN_SCHEMA)
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async def tcal6416_pin_to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_parented(var, config[CONF_TCAL6416])
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cg.add(var.set_pin(config[CONF_NUMBER]))
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cg.add(var.set_inverted(config[CONF_INVERTED]))
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cg.add(var.set_flags(pins.gpio_flags_expr(config[CONF_MODE])))
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return var
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