mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
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95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
/*
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Unitemp - Universal temperature reader
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Copyright (C) 2023 Victor Nikitchuk (https://github.com/quen0n)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "HDC1080.h"
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#include "../interfaces/I2CSensor.h"
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const SensorType HDC1080 = {
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.typename = "HDC1080",
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.interface = &I2C,
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.datatype = UT_DATA_TYPE_TEMP_HUM,
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.pollingInterval = 250,
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.allocator = unitemp_HDC1080_alloc,
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.mem_releaser = unitemp_HDC1080_free,
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.initializer = unitemp_HDC1080_init,
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.deinitializer = unitemp_HDC1080_deinit,
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.updater = unitemp_HDC1080_update};
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bool unitemp_HDC1080_alloc(Sensor* sensor, char* args) {
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UNUSED(args);
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I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
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//Адреса на шине I2C (7 бит)
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i2c_sensor->minI2CAdr = 0x40 << 1;
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i2c_sensor->maxI2CAdr = 0x40 << 1;
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return true;
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}
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bool unitemp_HDC1080_free(Sensor* sensor) {
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//Нечего высвобождать, так как ничего не было выделено
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UNUSED(sensor);
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return true;
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}
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bool unitemp_HDC1080_init(Sensor* sensor) {
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I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
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uint8_t data[2];
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if(!unitemp_i2c_readRegArray(i2c_sensor, 0xFF, 2, data)) return UT_SENSORSTATUS_TIMEOUT;
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uint16_t device_id = ((uint16_t)data[0] << 8) | data[1];
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if(device_id != 0x1050) {
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FURI_LOG_E(
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APP_NAME,
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"Sensor %s returned wrong ID 0x%02X, expected 0x1050",
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sensor->name,
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device_id);
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return false;
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}
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data[0] = 0b0001000;
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data[1] = 0;
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//Установка режима работы и разрядности измерений
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if(!unitemp_i2c_writeRegArray(i2c_sensor, 0x02, 2, data)) return UT_SENSORSTATUS_TIMEOUT;
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return true;
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}
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bool unitemp_HDC1080_deinit(Sensor* sensor) {
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I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
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UNUSED(i2c_sensor);
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return true;
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}
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UnitempStatus unitemp_HDC1080_update(Sensor* sensor) {
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I2CSensor* i2c_sensor = (I2CSensor*)sensor->instance;
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uint8_t data[2] = {0};
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//Запуск измерения
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if(!unitemp_i2c_writeArray(i2c_sensor, 1, data)) return UT_SENSORSTATUS_TIMEOUT;
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furi_delay_ms(10);
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if(!unitemp_i2c_readArray(i2c_sensor, 2, data)) return UT_SENSORSTATUS_TIMEOUT;
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sensor->temp = ((float)(((uint16_t)data[0] << 8) | data[1]) / 65536) * 165 - 40;
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data[0] = 1;
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if(!unitemp_i2c_writeArray(i2c_sensor, 1, data)) return UT_SENSORSTATUS_TIMEOUT;
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furi_delay_ms(10);
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if(!unitemp_i2c_readArray(i2c_sensor, 2, data)) return UT_SENSORSTATUS_TIMEOUT;
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sensor->hum = ((float)(((uint16_t)data[0] << 8) | data[1]) / 65536) * 100;
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return UT_SENSORSTATUS_OK;
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}
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