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45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/esphal.h"
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/components/spi/spi.h"
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#include "esphome/components/voltage_sampler/voltage_sampler.h"
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namespace esphome {
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namespace mcp3008 {
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class MCP3008 : public Component,
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public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
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spi::DATA_RATE_75KHZ> { // Running at the slowest max speed supported by the
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// mcp3008. 2.7v = 75ksps
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public:
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MCP3008() = default;
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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;
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float read_data(uint8_t pin);
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protected:
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};
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class MCP3008Sensor : public PollingComponent, public sensor::Sensor, public voltage_sampler::VoltageSampler {
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public:
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MCP3008Sensor(MCP3008 *parent, const std::string &name, uint8_t pin, float reference_voltage);
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void set_reference_voltage(float reference_voltage) { reference_voltage_ = reference_voltage; }
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void setup() override;
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void update() override;
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void dump_config() override;
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float get_setup_priority() const override;
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float sample() override;
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protected:
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MCP3008 *parent_;
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uint8_t pin_;
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float reference_voltage_;
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};
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} // namespace mcp3008
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} // namespace esphome
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