esphome/esphome/components/pn532/binary_sensor.py
2021-05-24 10:58:29 +02:00

50 lines
1.5 KiB
Python

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import binary_sensor
from esphome.const import CONF_UID, CONF_ID
from esphome.core import HexInt
from . import pn532_ns, PN532, CONF_PN532_ID
DEPENDENCIES = ["pn532"]
def validate_uid(value):
value = cv.string_strict(value)
for x in value.split("-"):
if len(x) != 2:
raise cv.Invalid(
"Each part (separated by '-') of the UID must be two characters "
"long."
)
try:
x = int(x, 16)
except ValueError as err:
raise cv.Invalid(
"Valid characters for parts of a UID are 0123456789ABCDEF."
) from err
if x < 0 or x > 255:
raise cv.Invalid(
"Valid values for UID parts (separated by '-') are 00 to FF"
)
return value
PN532BinarySensor = pn532_ns.class_("PN532BinarySensor", binary_sensor.BinarySensor)
CONFIG_SCHEMA = binary_sensor.BINARY_SENSOR_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(PN532BinarySensor),
cv.GenerateID(CONF_PN532_ID): cv.use_id(PN532),
cv.Required(CONF_UID): validate_uid,
}
)
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await binary_sensor.register_binary_sensor(var, config)
hub = await cg.get_variable(config[CONF_PN532_ID])
cg.add(hub.register_tag(var))
addr = [HexInt(int(x, 16)) for x in config[CONF_UID].split("-")]
cg.add(var.set_uid(addr))