kopia lustrzana https://github.com/pimoroni/pimoroni-pico
86 wiersze
2.6 KiB
C++
86 wiersze
2.6 KiB
C++
#include "bme280.hpp"
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#include "pico/stdlib.h"
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namespace pimoroni {
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bool BME280::init() {
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int8_t result;
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if(interrupt != PIN_UNUSED) {
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gpio_set_function(interrupt, GPIO_FUNC_SIO);
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gpio_set_dir(interrupt, GPIO_IN);
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gpio_pull_up(interrupt);
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}
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i2c_interface.i2c = i2c;
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i2c_interface.address = address;
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device.intf_ptr = &i2c_interface;
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device.intf = bme280_intf::BME280_I2C_INTF;
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device.read = (bme280_read_fptr_t)&read_bytes;
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device.write = (bme280_write_fptr_t)&write_bytes;
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device.delay_us = (bme280_delay_us_fptr_t)&delay_us;
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result = bme280_init(&device);
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if(result != BME280_OK) return false;
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configure(BME280_FILTER_COEFF_2, BME280_STANDBY_TIME_0_5_MS, BME280_OVERSAMPLING_16X, BME280_OVERSAMPLING_2X, BME280_OVERSAMPLING_1X);
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return true;
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}
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bool BME280::configure(uint8_t filter, uint8_t standby_time, uint8_t os_pressure, uint8_t os_temp, uint8_t os_humidity, uint8_t mode) {
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int8_t result;
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device.settings.filter = filter;
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device.settings.standby_time = standby_time;
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device.settings.osr_p = os_pressure;
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device.settings.osr_t = os_temp;
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device.settings.osr_h = os_humidity;
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result = bme280_set_sensor_settings(BME280_ALL_SETTINGS_SEL, &device);
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if(result != BME280_OK) return false;
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result = bme280_set_sensor_mode(mode, &device);
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if(result != BME280_OK) return false;
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return true;
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}
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BME280::bme280_reading BME280::read_forced() {
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bme280_reading reading;
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int8_t result;
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reading.status = false;
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result = bme280_set_sensor_mode(BME280_FORCED_MODE, &device);
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if(result != BME280_OK) return reading;
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uint32_t req_delay = bme280_cal_meas_delay(&device.settings);
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device.delay_us(req_delay, device.intf_ptr);
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bme280_data data;
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reading.status = bme280_get_sensor_data(BME280_ALL, &data, &device) == BME280_OK;
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reading.temperature = data.temperature;
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reading.pressure = data.pressure;
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reading.humidity = data.humidity;
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return reading;
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}
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BME280::bme280_reading BME280::read() {
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bme280_reading reading;
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bme280_data data;
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reading.status = bme280_get_sensor_data(BME280_ALL, &data, &device) == BME280_OK;
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reading.temperature = data.temperature;
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reading.pressure = data.pressure;
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reading.humidity = data.humidity;
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return reading;
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}
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I2C* BME280::get_i2c() const {
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return i2c;
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}
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int BME280::get_int() const {
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return interrupt;
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}
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} |