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67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.cpp_helpers import gpio_pin_expression
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from esphome.components import uart
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from esphome.const import (
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CONF_FLOW_CONTROL_PIN,
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CONF_ID,
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CONF_ADDRESS,
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)
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from esphome import pins
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DEPENDENCIES = ["uart"]
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modbus_ns = cg.esphome_ns.namespace("modbus")
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Modbus = modbus_ns.class_("Modbus", cg.Component, uart.UARTDevice)
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ModbusDevice = modbus_ns.class_("ModbusDevice")
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MULTI_CONF = True
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CONF_MODBUS_ID = "modbus_id"
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CONF_SEND_WAIT_TIME = "send_wait_time"
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CONFIG_SCHEMA = (
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cv.Schema(
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{
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cv.GenerateID(): cv.declare_id(Modbus),
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cv.Optional(CONF_FLOW_CONTROL_PIN): pins.gpio_output_pin_schema,
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cv.Optional(
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CONF_SEND_WAIT_TIME, default="250ms"
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): cv.positive_time_period_milliseconds,
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}
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)
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.extend(cv.COMPONENT_SCHEMA)
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.extend(uart.UART_DEVICE_SCHEMA)
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)
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async def to_code(config):
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cg.add_global(modbus_ns.using)
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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 uart.register_uart_device(var, config)
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if CONF_FLOW_CONTROL_PIN in config:
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pin = await gpio_pin_expression(config[CONF_FLOW_CONTROL_PIN])
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cg.add(var.set_flow_control_pin(pin))
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if CONF_SEND_WAIT_TIME in config:
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cg.add(var.set_send_wait_time(config[CONF_SEND_WAIT_TIME]))
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def modbus_device_schema(default_address):
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schema = {
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cv.GenerateID(CONF_MODBUS_ID): cv.use_id(Modbus),
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}
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if default_address is None:
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schema[cv.Required(CONF_ADDRESS)] = cv.hex_uint8_t
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else:
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schema[cv.Optional(CONF_ADDRESS, default=default_address)] = cv.hex_uint8_t
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return cv.Schema(schema)
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async def register_modbus_device(var, config):
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parent = await cg.get_variable(config[CONF_MODBUS_ID])
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cg.add(var.set_parent(parent))
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cg.add(var.set_address(config[CONF_ADDRESS]))
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cg.add(parent.register_device(var))
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