mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-26 07:49:36 -05:00
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
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/*
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* Copyright (C) 2024 HTotoo.
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*
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* This file is part of PortaPack.
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*
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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 2, or (at your option)
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* any later version.
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*
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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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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "i2cdev_sht3x.hpp"
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namespace i2cdev {
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bool I2cDev_SHT3x::init(uint8_t addr_) {
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if (addr_ != I2CDEV_SHT3X_ADDR_1 && addr_ != I2CDEV_SHT3X_ADDR_2) return false;
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addr = addr_; // store the addr
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model = I2C_DEVMDL::I2CDEVMDL_SHT3X; // set the device model!!!!!!!!!!!!!!!!!!
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query_interval = 5; // set update interval in sec
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chThdSleepMilliseconds(50);
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uint8_t tmp[2]; // command buffer
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tmp[0] = 0x30;
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tmp[1] = 0x66;
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if (!i2c_write(nullptr, 0, tmp, 2)) return false; // heater off
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chThdSleepMilliseconds(50);
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tmp[0] = 0x22;
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tmp[1] = 0x36;
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if (!i2c_write(nullptr, 0, tmp, 2)) return false; // conti, 2mps
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chThdSleepMilliseconds(50);
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return true;
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}
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void I2cDev_SHT3x::update() {
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float temp = 0;
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float hum = 0;
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uint8_t cmd[2];
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cmd[0] = 0xe0;
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cmd[1] = 0;
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uint8_t res[6];
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i2c_read(cmd, 2, res, 6);
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uint16_t temptick = res[0] << 8 | res[1];
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uint16_t humtick = res[3] << 8 | res[4];
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temp = -45 + (((float)temptick * 175.0) / 65535.0);
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hum = (100.0 * (float)humtick) / 65535.0;
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EnvironmentDataMessage msg{temp, hum}; // create the system message
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EventDispatcher::send_message(msg); // and send it
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}
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} // namespace i2cdev
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