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Add support for MPL3115A2 Pressure/Altitude and Temperature Sensor (#3371)

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* Add support for mpl3115a2

* Add codeowner

* Linter/test updates

* Minor changes

* Made pressure/altitude exclusive

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Keilin Bickar 2022-09-09 01:18:02 -04:00 committed by GitHub
parent e3f2562047
commit d66b2a1778
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 290 additions and 0 deletions
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1
CODEOWNERS
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@ -143,6 +143,7 @@ esphome/components/modbus_controller/switch/* @martgras
esphome/components/modbus_controller/text_sensor/* @martgras
esphome/components/mopeka_ble/* @spbrogan
esphome/components/mopeka_pro_check/* @spbrogan
esphome/components/mpl3115a2/* @kbickar
esphome/components/mpu6886/* @fabaff
esphome/components/network/* @esphome/core
esphome/components/nextion/* @senexcrenshaw

0
esphome/components/mpl3115a2/__init__.py Normal file
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99
esphome/components/mpl3115a2/mpl3115a2.cpp Normal file
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#include "mpl3115a2.h"
#include "esphome/core/hal.h"
#include "esphome/core/log.h"
namespace esphome {
namespace mpl3115a2 {
static const char *const TAG = "mpl3115a2";
void MPL3115A2Component::setup() {
ESP_LOGCONFIG(TAG, "Setting up MPL3115A2...");
uint8_t whoami = 0xFF;
if (!this->read_byte(MPL3115A2_WHOAMI, &whoami, false)) {
this->error_code_ = COMMUNICATION_FAILED;
this->mark_failed();
return;
}
if (whoami != 0xC4) {
this->error_code_ = WRONG_ID;
this->mark_failed();
return;
}
// reset
this->write_byte(MPL3115A2_CTRL_REG1, MPL3115A2_CTRL_REG1_RST);
delay(15);
// enable data ready events for pressure/altitude and temperature
this->write_byte(MPL3115A2_PT_DATA_CFG,
MPL3115A2_PT_DATA_CFG_TDEFE | MPL3115A2_PT_DATA_CFG_PDEFE | MPL3115A2_PT_DATA_CFG_DREM);
}
void MPL3115A2Component::dump_config() {
ESP_LOGCONFIG(TAG, "MPL3115A2:");
LOG_I2C_DEVICE(this);
if (this->is_failed()) {
switch (this->error_code_) {
case COMMUNICATION_FAILED:
ESP_LOGE(TAG, "Communication with MPL3115A2 failed!");
break;
case WRONG_ID:
ESP_LOGE(TAG, "MPL3115A2 has invalid id");
break;
default:
ESP_LOGE(TAG, "Setting up MPL3115A2 registers failed!");
break;
}
}
LOG_UPDATE_INTERVAL(this);
LOG_SENSOR(" ", "Temperature", this->temperature_);
LOG_SENSOR(" ", "Pressure", this->pressure_);
LOG_SENSOR(" ", "Altitude", this->altitude_);
}
void MPL3115A2Component::update() {
uint8_t mode = MPL3115A2_CTRL_REG1_OS128;
this->write_byte(MPL3115A2_CTRL_REG1, mode, true);
// Trigger a new reading
mode |= MPL3115A2_CTRL_REG1_OST;
if (this->altitude_ != nullptr)
mode |= MPL3115A2_CTRL_REG1_ALT;
this->write_byte(MPL3115A2_CTRL_REG1, mode, true);
// Wait until status shows reading available
uint8_t status = 0;
if (!this->read_byte(MPL3115A2_REGISTER_STATUS, &status, false) || (status & MPL3115A2_REGISTER_STATUS_PDR) == 0) {
delay(10);
if (!this->read_byte(MPL3115A2_REGISTER_STATUS, &status, false) || (status & MPL3115A2_REGISTER_STATUS_PDR) == 0) {
return;
}
}
uint8_t buffer[5] = {0, 0, 0, 0, 0};
this->read_register(MPL3115A2_REGISTER_PRESSURE_MSB, buffer, 5, false);
float altitude = 0, pressure = 0;
if (this->altitude_ != nullptr) {
int32_t alt = encode_uint32(buffer[0], buffer[1], buffer[2], 0);
altitude = float(alt) / 65536.0;
this->altitude_->publish_state(altitude);
} else {
uint32_t p = encode_uint32(0, buffer[0], buffer[1], buffer[2]);
pressure = float(p) / 6400.0;
if (this->pressure_ != nullptr)
this->pressure_->publish_state(pressure);
}
int16_t t = encode_uint16(buffer[3], buffer[4]);
float temperature = float(t) / 256.0;
if (this->temperature_ != nullptr)
this->temperature_->publish_state(temperature);
ESP_LOGD(TAG, "Got Temperature=%.1f°C Altitude=%.1f Pressure=%.1f", temperature, altitude, pressure);
this->status_clear_warning();
}
} // namespace mpl3115a2
} // namespace esphome

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esphome/components/mpl3115a2/mpl3115a2.h Normal file
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@ -0,0 +1,108 @@
#pragma once
#include "esphome/core/component.h"
#include "esphome/components/sensor/sensor.h"
#include "esphome/components/i2c/i2c.h"
namespace esphome {
namespace mpl3115a2 {
// enums from https://github.com/adafruit/Adafruit_MPL3115A2_Library/
/** MPL3115A2 registers **/
enum {
MPL3115A2_REGISTER_STATUS = (0x00),
MPL3115A2_REGISTER_PRESSURE_MSB = (0x01),
MPL3115A2_REGISTER_PRESSURE_CSB = (0x02),
MPL3115A2_REGISTER_PRESSURE_LSB = (0x03),
MPL3115A2_REGISTER_TEMP_MSB = (0x04),
MPL3115A2_REGISTER_TEMP_LSB = (0x05),
MPL3115A2_REGISTER_DR_STATUS = (0x06),
MPL3115A2_OUT_P_DELTA_MSB = (0x07),
MPL3115A2_OUT_P_DELTA_CSB = (0x08),
MPL3115A2_OUT_P_DELTA_LSB = (0x09),
MPL3115A2_OUT_T_DELTA_MSB = (0x0A),
MPL3115A2_OUT_T_DELTA_LSB = (0x0B),
MPL3115A2_WHOAMI = (0x0C),
MPL3115A2_BAR_IN_MSB = (0x14),
MPL3115A2_BAR_IN_LSB = (0x15),
};
/** MPL3115A2 status register bits **/
enum {
MPL3115A2_REGISTER_STATUS_TDR = 0x02,
MPL3115A2_REGISTER_STATUS_PDR = 0x04,
MPL3115A2_REGISTER_STATUS_PTDR = 0x08,
};
/** MPL3115A2 PT DATA register bits **/
enum {
MPL3115A2_PT_DATA_CFG = 0x13,
MPL3115A2_PT_DATA_CFG_TDEFE = 0x01,
MPL3115A2_PT_DATA_CFG_PDEFE = 0x02,
MPL3115A2_PT_DATA_CFG_DREM = 0x04,
};
/** MPL3115A2 control registers **/
enum {
MPL3115A2_CTRL_REG1 = (0x26),
MPL3115A2_CTRL_REG2 = (0x27),
MPL3115A2_CTRL_REG3 = (0x28),
MPL3115A2_CTRL_REG4 = (0x29),
MPL3115A2_CTRL_REG5 = (0x2A),
};
/** MPL3115A2 control register bits **/
enum {
MPL3115A2_CTRL_REG1_SBYB = 0x01,
MPL3115A2_CTRL_REG1_OST = 0x02,
MPL3115A2_CTRL_REG1_RST = 0x04,
MPL3115A2_CTRL_REG1_RAW = 0x40,
MPL3115A2_CTRL_REG1_ALT = 0x80,
MPL3115A2_CTRL_REG1_BAR = 0x00,
};
/** MPL3115A2 oversample values **/
enum {
MPL3115A2_CTRL_REG1_OS1 = 0x00,
MPL3115A2_CTRL_REG1_OS2 = 0x08,
MPL3115A2_CTRL_REG1_OS4 = 0x10,
MPL3115A2_CTRL_REG1_OS8 = 0x18,
MPL3115A2_CTRL_REG1_OS16 = 0x20,
MPL3115A2_CTRL_REG1_OS32 = 0x28,
MPL3115A2_CTRL_REG1_OS64 = 0x30,
MPL3115A2_CTRL_REG1_OS128 = 0x38,
};
class MPL3115A2Component : public PollingComponent, public i2c::I2CDevice {
public:
void set_temperature(sensor::Sensor *temperature) { temperature_ = temperature; }
void set_altitude(sensor::Sensor *altitude) { altitude_ = altitude; }
void set_pressure(sensor::Sensor *pressure) { pressure_ = pressure; }
void setup() override;
void dump_config() override;
void update() override;
float get_setup_priority() const override { return setup_priority::DATA; }
protected:
sensor::Sensor *temperature_{nullptr};
sensor::Sensor *altitude_{nullptr};
sensor::Sensor *pressure_{nullptr};
enum ErrorCode {
NONE = 0,
COMMUNICATION_FAILED,
WRONG_ID,
} error_code_{NONE};
};
} // namespace mpl3115a2
} // namespace esphome

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esphome/components/mpl3115a2/sensor.py Normal file
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import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import i2c, sensor
from esphome.const import (
CONF_ALTITUDE,
CONF_ID,
CONF_PRESSURE,
CONF_TEMPERATURE,
DEVICE_CLASS_PRESSURE,
DEVICE_CLASS_TEMPERATURE,
STATE_CLASS_MEASUREMENT,
UNIT_CELSIUS,
UNIT_HECTOPASCAL,
UNIT_METER,
)
CODEOWNERS = ["@kbickar"]
DEPENDENCIES = ["i2c"]
mpl3115a2_ns = cg.esphome_ns.namespace("mpl3115a2")
MPL3115A2Component = mpl3115a2_ns.class_(
"MPL3115A2Component", cg.PollingComponent, i2c.I2CDevice
)
CONFIG_SCHEMA = (
cv.Schema(
{
cv.GenerateID(): cv.declare_id(MPL3115A2Component),
cv.Exclusive(
CONF_PRESSURE,
"pressure",
f"{CONF_PRESSURE} and {CONF_ALTITUDE} can't be used together",
): sensor.sensor_schema(
unit_of_measurement=UNIT_HECTOPASCAL,
accuracy_decimals=1,
device_class=DEVICE_CLASS_PRESSURE,
state_class=STATE_CLASS_MEASUREMENT,
),
cv.Exclusive(
CONF_ALTITUDE,
"pressure",
f"{CONF_PRESSURE} and {CONF_ALTITUDE} can't be used together",
): sensor.sensor_schema(
unit_of_measurement=UNIT_METER,
accuracy_decimals=1,
state_class=STATE_CLASS_MEASUREMENT,
),
cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
unit_of_measurement=UNIT_CELSIUS,
accuracy_decimals=1,
device_class=DEVICE_CLASS_TEMPERATURE,
state_class=STATE_CLASS_MEASUREMENT,
),
}
)
.extend(cv.polling_component_schema("60s"))
.extend(i2c.i2c_device_schema(0x60))
)
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 CONF_PRESSURE in config:
sens = await sensor.new_sensor(config[CONF_PRESSURE])
cg.add(var.set_pressure(sens))
elif CONF_ALTITUDE in config:
sens = await sensor.new_sensor(config[CONF_ALTITUDE])
cg.add(var.set_altitude(sens))
if CONF_TEMPERATURE in config:
sens = await sensor.new_sensor(config[CONF_TEMPERATURE])
cg.add(var.set_temperature(sens))

7
tests/test1.yaml
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@ -1167,6 +1167,13 @@ sensor:
temperature:
name: Max9611 Temp
update_interval: 1s
- platform: mpl3115a2
i2c_id: i2c_bus
temperature:
name: "MPL3115A2 Temperature"
pressure:
name: "MPL3115A2 Pressure"
update_interval: 10s
esp32_touch:
setup_mode: false