Add Emc2101 (#4491)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
2026-06-02 19:08:54 +02:00 · 2023-10-25 20:30:11 +02:00
parent 2895cc6c57
commit 28aedae8d7
10 changed files with 574 additions and 0 deletions
@@ -0,0 +1,81 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import i2c
+from esphome.const import CONF_ID, CONF_INVERTED, CONF_RESOLUTION
+
+CODEOWNERS = ["@ellull"]
+
+DEPENDENCIES = ["i2c"]
+
+CONF_PWM = "pwm"
+CONF_DIVIDER = "divider"
+CONF_DAC = "dac"
+CONF_CONVERSION_RATE = "conversion_rate"
+
+CONF_EMC2101_ID = "emc2101_id"
+
+emc2101_ns = cg.esphome_ns.namespace("emc2101")
+
+Emc2101DACConversionRate = emc2101_ns.enum("Emc2101DACConversionRate")
+CONVERSIONS_PER_SECOND = {
+    "1/16": Emc2101DACConversionRate.Emc2101_DAC_1_EVERY_16S,
+    "1/8": Emc2101DACConversionRate.Emc2101_DAC_1_EVERY_8S,
+    "1/4": Emc2101DACConversionRate.Emc2101_DAC_1_EVERY_4S,
+    "1/2": Emc2101DACConversionRate.Emc2101_DAC_1_EVERY_2S,
+    "1": Emc2101DACConversionRate.Emc2101_DAC_1_EVERY_SECOND,
+    "2": Emc2101DACConversionRate.Emc2101_DAC_2_EVERY_SECOND,
+    "4": Emc2101DACConversionRate.Emc2101_DAC_4_EVERY_SECOND,
+    "8": Emc2101DACConversionRate.Emc2101_DAC_8_EVERY_SECOND,
+    "16": Emc2101DACConversionRate.Emc2101_DAC_16_EVERY_SECOND,
+    "32": Emc2101DACConversionRate.Emc2101_DAC_32_EVERY_SECOND,
+}
+
+Emc2101Component = emc2101_ns.class_("Emc2101Component", cg.Component, i2c.I2CDevice)
+
+EMC2101_COMPONENT_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(CONF_EMC2101_ID): cv.use_id(Emc2101Component),
+    }
+)
+
+CONFIG_SCHEMA = cv.All(
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(Emc2101Component),
+            cv.Optional(CONF_PWM): cv.Schema(
+                {
+                    cv.Optional(CONF_RESOLUTION, default=23): cv.int_range(
+                        min=0, max=31
+                    ),
+                    cv.Optional(CONF_DIVIDER, default=1): cv.uint8_t,
+                }
+            ),
+            cv.Optional(CONF_DAC): cv.Schema(
+                {
+                    cv.Optional(CONF_CONVERSION_RATE, default="16"): cv.enum(
+                        CONVERSIONS_PER_SECOND
+                    ),
+                }
+            ),
+            cv.Optional(CONF_INVERTED, default=False): cv.boolean,
+        }
+    )
+    .extend(cv.COMPONENT_SCHEMA)
+    .extend(i2c.i2c_device_schema(0x4C)),
+    cv.has_exactly_one_key(CONF_PWM, CONF_DAC),
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+
+    if pwm_config := config.get(CONF_PWM):
+        cg.add(var.set_dac_mode(False))
+        cg.add(var.set_pwm_resolution(pwm_config[CONF_RESOLUTION]))
+        cg.add(var.set_pwm_divider(pwm_config[CONF_DIVIDER]))
+    if dac_config := config.get(CONF_DAC):
+        cg.add(var.set_dac_mode(True))
+        cg.add(var.set_dac_conversion_rate(dac_config[CONF_CONVERSION_RATE]))
+    cg.add(var.set_inverted(config[CONF_INVERTED]))