Add gp8403 output component (#4495)

Co-authored-by: Samuel Sieb <samuel-github@sieb.net>

CODEOWNERS

@@ -95,6 +95,7 @@ esphome/components/feedback/* @ianchi
 esphome/components/fingerprint_grow/* @OnFreund @loongyh
 esphome/components/fs3000/* @kahrendt
 esphome/components/globals/* @esphome/core
+esphome/components/gp8403/* @jesserockz
 esphome/components/gpio/* @esphome/core
 esphome/components/gps/* @coogle
 esphome/components/graph/* @synco

esphome/components/gp8403/__init__.py

@@ -0,0 +1,40 @@
+import esphome.config_validation as cv
+import esphome.codegen as cg
+
+from esphome.components import i2c
+from esphome.const import CONF_ID, CONF_VOLTAGE
+
+CODEOWNERS = ["@jesserockz"]
+DEPENDENCIES = ["i2c"]
+MULTI_CONF = True
+
+gp8403_ns = cg.esphome_ns.namespace("gp8403")
+GP8403 = gp8403_ns.class_("GP8403", cg.Component, i2c.I2CDevice)
+
+GP8403Voltage = gp8403_ns.enum("GP8403Voltage")
+
+CONF_GP8403_ID = "gp8403_id"
+
+VOLTAGES = {
+    "5V": GP8403Voltage.GP8403_VOLTAGE_5V,
+    "10V": GP8403Voltage.GP8403_VOLTAGE_10V,
+}
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(GP8403),
+            cv.Required(CONF_VOLTAGE): cv.enum(VOLTAGES, upper=True),
+        }
+    )
+    .extend(cv.COMPONENT_SCHEMA)
+    .extend(i2c.i2c_device_schema(0x58))
+)
+
+
+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)
+
+    cg.add(var.set_voltage(config[CONF_VOLTAGE]))

esphome/components/gp8403/gp8403.cpp

@@ -0,0 +1,21 @@
+#include "gp8403.h"
+
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace gp8403 {
+
+static const char *const TAG = "gp8403";
+
+static const uint8_t RANGE_REGISTER = 0x01;
+
+void GP8403::setup() { this->write_register(RANGE_REGISTER, (uint8_t *) (&this->voltage_), 1); }
+
+void GP8403::dump_config() {
+  ESP_LOGCONFIG(TAG, "GP8403:");
+  ESP_LOGCONFIG(TAG, "  Voltage: %dV", this->voltage_ == GP8403_VOLTAGE_5V ? 5 : 10);
+  LOG_I2C_DEVICE(this);
+}
+
+}  // namespace gp8403
+}  // namespace esphome

esphome/components/gp8403/gp8403.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "esphome/components/i2c/i2c.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace gp8403 {
+
+enum GP8403Voltage {
+  GP8403_VOLTAGE_5V = 0x00,
+  GP8403_VOLTAGE_10V = 0x11,
+};
+
+class GP8403 : public Component, public i2c::I2CDevice {
+ public:
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::DATA; }
+
+  void set_voltage(gp8403::GP8403Voltage voltage) { this->voltage_ = voltage; }
+
+ protected:
+  GP8403Voltage voltage_;
+};
+
+}  // namespace gp8403
+}  // namespace esphome

esphome/components/gp8403/output/__init__.py

@@ -0,0 +1,31 @@
+import esphome.config_validation as cv
+import esphome.codegen as cg
+
+from esphome.components import i2c, output
+from esphome.const import CONF_ID, CONF_CHANNEL
+
+from .. import gp8403_ns, GP8403, CONF_GP8403_ID
+
+DEPENDENCIES = ["gp8403"]
+
+GP8403Output = gp8403_ns.class_(
+    "GP8403Output", cg.Component, i2c.I2CDevice, output.FloatOutput
+)
+
+CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend(
+    {
+        cv.GenerateID(): cv.declare_id(GP8403Output),
+        cv.GenerateID(CONF_GP8403_ID): cv.use_id(GP8403),
+        cv.Required(CONF_CHANNEL): cv.one_of(0, 1),
+    }
+).extend(cv.COMPONENT_SCHEMA)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await output.register_output(var, config)
+
+    await cg.register_parented(var, config[CONF_GP8403_ID])
+
+    cg.add(var.set_channel(config[CONF_CHANNEL]))

esphome/components/gp8403/output/gp8403_output.cpp

@@ -0,0 +1,26 @@
+#include "gp8403_output.h"
+
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace gp8403 {
+
+static const char *const TAG = "gp8403.output";
+
+static const uint8_t OUTPUT_REGISTER = 0x02;
+
+void GP8403Output::dump_config() {
+  ESP_LOGCONFIG(TAG, "GP8403 Output:");
+  ESP_LOGCONFIG(TAG, "  Channel: %u", this->channel_);
+}
+
+void GP8403Output::write_state(float state) {
+  uint16_t value = ((uint16_t) (state * 4095)) << 4;
+  i2c::ErrorCode err = this->parent_->write_register(OUTPUT_REGISTER + (2 * this->channel_), (uint8_t *) &value, 2);
+  if (err != i2c::ERROR_OK) {
+    ESP_LOGE(TAG, "Error writing to GP8403, code %d", err);
+  }
+}
+
+}  // namespace gp8403
+}  // namespace esphome

esphome/components/gp8403/output/gp8403_output.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "esphome/components/output/float_output.h"
+#include "esphome/core/component.h"
+
+#include "esphome/components/gp8403/gp8403.h"
+
+namespace esphome {
+namespace gp8403 {
+
+class GP8403Output : public Component, public output::FloatOutput, public Parented<GP8403> {
+ public:
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::DATA - 1; }
+
+  void set_channel(uint8_t channel) { this->channel_ = channel; }
+
+  void write_state(float state) override;
+
+ protected:
+  uint8_t channel_;
+};
+
+}  // namespace gp8403
+}  // namespace esphome

tests/test5.yaml

@@ -208,6 +208,12 @@ tlc5947:
   clock_pin: GPIO14
   lat_pin: GPIO15
 
+gp8403:
+  - id: gp8403_5v
+    voltage: 5V
+  - id: gp8403_10v
+    voltage: 10V
+
 output:
   - platform: gpio
     pin: GPIO2
@@ -245,6 +251,15 @@ output:
     id: Led7
     led: 7
 
+  - platform: gp8403
+    id: gp8403_output_0
+    gp8403_id: gp8403_5v
+    channel: 0
+  - platform: gp8403
+    gp8403_id: gp8403_10v
+    id: gp8403_output_1
+    channel: 1
+
 demo:
 
 esp32_ble: