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DAC7678 support (#3441)
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
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6 changed files with 235 additions and 0 deletions
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@ -52,6 +52,7 @@ esphome/components/cs5460a/* @balrog-kun
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esphome/components/cse7761/* @berfenger
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esphome/components/ct_clamp/* @jesserockz
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esphome/components/current_based/* @djwmarcx
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esphome/components/dac7678/* @NickB1
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esphome/components/daly_bms/* @s1lvi0
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esphome/components/dashboard_import/* @esphome/core
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esphome/components/debug/* @OttoWinter
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32
esphome/components/dac7678/__init__.py
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32
esphome/components/dac7678/__init__.py
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@ -0,0 +1,32 @@
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import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.components import i2c
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from esphome.const import CONF_ID
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AUTO_LOAD = ["output"]
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CODEOWNERS = ["@NickB1"]
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DEPENDENCIES = ["i2c"]
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MULTI_CONF = True
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dac7678_ns = cg.esphome_ns.namespace("dac7678")
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DAC7678Output = dac7678_ns.class_("DAC7678Output", cg.Component, i2c.I2CDevice)
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CONF_INTERNAL_REFERENCE = "internal_reference"
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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(DAC7678Output),
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cv.Optional(CONF_INTERNAL_REFERENCE, default=False): cv.boolean,
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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(0x48))
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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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cg.add(var.set_internal_reference(config[CONF_INTERNAL_REFERENCE]))
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await i2c.register_i2c_device(var, config)
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return var
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83
esphome/components/dac7678/dac7678_output.cpp
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83
esphome/components/dac7678/dac7678_output.cpp
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@ -0,0 +1,83 @@
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#include "dac7678_output.h"
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#include "esphome/core/log.h"
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#include "esphome/core/helpers.h"
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#include "esphome/core/hal.h"
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namespace esphome {
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namespace dac7678 {
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static const char *const TAG = "dac7678";
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static const uint8_t DAC7678_REG_INPUT_N = 0x00;
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static const uint8_t DAC7678_REG_SELECT_UPDATE_N = 0x10;
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static const uint8_t DAC7678_REG_WRITE_N_UPDATE_ALL = 0x20;
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static const uint8_t DAC7678_REG_WRITE_N_UPDATE_N = 0x30;
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static const uint8_t DAC7678_REG_POWER = 0x40;
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static const uint8_t DAC7678_REG_CLEAR_CODE = 0x50;
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static const uint8_t DAC7678_REG_LDAC = 0x60;
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static const uint8_t DAC7678_REG_SOFTWARE_RESET = 0x70;
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static const uint8_t DAC7678_REG_INTERNAL_REF_0 = 0x80;
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static const uint8_t DAC7678_REG_INTERNAL_REF_1 = 0x90;
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void DAC7678Output::setup() {
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ESP_LOGCONFIG(TAG, "Setting up DAC7678OutputComponent...");
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ESP_LOGV(TAG, "Resetting device...");
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// Reset device
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if (!this->write_byte_16(DAC7678_REG_SOFTWARE_RESET, 0x0000)) {
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ESP_LOGE(TAG, "Reset failed");
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this->mark_failed();
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return;
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} else
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ESP_LOGV(TAG, "Reset succeeded");
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delayMicroseconds(1000);
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// Set internal reference
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if (this->internal_reference_) {
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if (!this->write_byte_16(DAC7678_REG_INTERNAL_REF_0, 1 << 4)) {
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ESP_LOGE(TAG, "Set internal reference failed");
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this->mark_failed();
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return;
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} else
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ESP_LOGV(TAG, "Internal reference enabled");
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}
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}
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void DAC7678Output::dump_config() {
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if (this->is_failed()) {
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ESP_LOGE(TAG, "Setting up DAC7678 failed!");
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} else
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ESP_LOGCONFIG(TAG, "DAC7678 initialised");
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}
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void DAC7678Output::register_channel(DAC7678Channel *channel) {
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auto c = channel->channel_;
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this->min_channel_ = std::min(this->min_channel_, c);
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this->max_channel_ = std::max(this->max_channel_, c);
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channel->set_parent(this);
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ESP_LOGV(TAG, "Registered channel: %01u", channel->channel_);
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}
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void DAC7678Output::set_channel_value_(uint8_t channel, uint16_t value) {
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if (this->dac_input_reg_[channel] != value) {
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ESP_LOGV(TAG, "Channel %01u: input_reg=%04u ", channel, value);
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if (!this->write_byte_16(DAC7678_REG_WRITE_N_UPDATE_N | channel, value << 4)) {
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this->status_set_warning();
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return;
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}
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}
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this->dac_input_reg_[channel] = value;
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this->status_clear_warning();
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}
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void DAC7678Channel::write_state(float state) {
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const float input_rounded = roundf(state * this->full_scale_);
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auto input = static_cast<uint16_t>(input_rounded);
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this->parent_->set_channel_value_(this->channel_, input);
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}
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} // namespace dac7678
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} // namespace esphome
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55
esphome/components/dac7678/dac7678_output.h
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55
esphome/components/dac7678/dac7678_output.h
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#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/helpers.h"
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#include "esphome/components/output/float_output.h"
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#include "esphome/components/i2c/i2c.h"
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namespace esphome {
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namespace dac7678 {
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class DAC7678Output;
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class DAC7678Channel : public output::FloatOutput, public Parented<DAC7678Output> {
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public:
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void set_channel(uint8_t channel) { channel_ = channel; }
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protected:
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friend class DAC7678Output;
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const uint16_t full_scale_ = 0xFFF;
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void write_state(float state) override;
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uint8_t channel_;
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};
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/// DAC7678 float output component.
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class DAC7678Output : public Component, public i2c::I2CDevice {
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public:
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DAC7678Output() {}
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void register_channel(DAC7678Channel *channel);
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void set_internal_reference(const bool value) { this->internal_reference_ = value; }
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void setup() override;
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void dump_config() override;
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float get_setup_priority() const override { return setup_priority::HARDWARE; }
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protected:
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friend DAC7678Channel;
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bool internal_reference_;
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void set_channel_value_(uint8_t channel, uint16_t value);
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uint8_t min_channel_{0xFF};
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uint8_t max_channel_{0x00};
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uint16_t dac_input_reg_[8] = {
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0,
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};
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};
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} // namespace dac7678
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} // namespace esphome
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27
esphome/components/dac7678/output.py
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27
esphome/components/dac7678/output.py
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import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.components import output
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from esphome.const import CONF_CHANNEL, CONF_ID
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from . import DAC7678Output, dac7678_ns
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DEPENDENCIES = ["dac7678"]
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DAC7678Channel = dac7678_ns.class_("DAC7678Channel", output.FloatOutput)
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CONF_DAC7678_ID = "dac7678_id"
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CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend(
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{
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cv.Required(CONF_ID): cv.declare_id(DAC7678Channel),
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cv.GenerateID(CONF_DAC7678_ID): cv.use_id(DAC7678Output),
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cv.Required(CONF_CHANNEL): cv.int_range(min=0, max=7),
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}
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)
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async def to_code(config):
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paren = await cg.get_variable(config[CONF_DAC7678_ID])
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var = cg.new_Pvariable(config[CONF_ID])
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cg.add(var.set_channel(config[CONF_CHANNEL]))
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cg.add(paren.register_channel(var))
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await output.register_output(var, config)
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return var
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@ -80,6 +80,11 @@ sx1509:
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mcp3204:
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cs_pin: GPIO23
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dac7678:
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address: 0x4A
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id: dac7678_hub1
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internal_reference: true
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sensor:
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- platform: homeassistant
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entity_id: sensor.hello_world
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@ -518,6 +523,38 @@ output:
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pipsolar_id: inverter0
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battery_recharge_voltage:
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id: inverter0_battery_recharge_voltage_out
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 0
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id: 'dac7678_1_ch0'
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 1
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id: 'dac7678_1_ch1'
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 2
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id: 'dac7678_1_ch2'
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 3
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id: 'dac7678_1_ch3'
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 4
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id: 'dac7678_1_ch4'
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 5
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id: 'dac7678_1_ch5'
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 6
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id: 'dac7678_1_ch6'
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- platform: dac7678
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dac7678_id: 'dac7678_hub1'
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channel: 7
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id: 'dac7678_1_ch7'
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esp32_camera:
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name: ESP-32 Camera
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data_pins: [GPIO17, GPIO35, GPIO34, GPIO5, GPIO39, GPIO18, GPIO36, GPIO19]
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