mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-15 02:34:33 -05:00
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
|
/*
|
||
|
|
* Copyright (C) 2024 HTotoo.
|
||
|
|
*
|
||
|
|
* This file is part of PortaPack.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
||
|
|
* any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; see the file COPYING. If not, write to
|
||
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
||
|
|
* Boston, MA 02110-1301, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "i2cdev_sht3x.hpp"
|
||
|
|
|
||
|
|
namespace i2cdev {
|
||
|
|
|
||
|
|
bool I2cDev_SHT3x::init(uint8_t addr_) {
|
||
|
|
if (addr_ != I2CDEV_SHT3X_ADDR_1 && addr_ != I2CDEV_SHT3X_ADDR_2) return false;
|
||
|
|
addr = addr_; // store the addr
|
||
|
|
model = I2C_DEVMDL::I2CDEVMDL_SHT3X; // set the device model!!!!!!!!!!!!!!!!!!
|
||
|
|
query_interval = 5; // set update interval in sec
|
||
|
|
chThdSleepMilliseconds(50);
|
||
|
|
uint8_t tmp[2]; // command buffer
|
||
|
|
tmp[0] = 0x30;
|
||
|
|
tmp[1] = 0x66;
|
||
|
|
if (!i2c_write(nullptr, 0, tmp, 2)) return false; // heater off
|
||
|
|
chThdSleepMilliseconds(50);
|
||
|
|
tmp[0] = 0x22;
|
||
|
|
tmp[1] = 0x36;
|
||
|
|
if (!i2c_write(nullptr, 0, tmp, 2)) return false; // conti, 2mps
|
||
|
|
|
||
|
|
chThdSleepMilliseconds(50);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void I2cDev_SHT3x::update() {
|
||
|
|
float temp = 0;
|
||
|
|
float hum = 0;
|
||
|
|
uint8_t cmd[2];
|
||
|
|
cmd[0] = 0xe0;
|
||
|
|
cmd[1] = 0;
|
||
|
|
uint8_t res[6];
|
||
|
|
i2c_read(cmd, 2, res, 6);
|
||
|
|
uint16_t temptick = res[0] << 8 | res[1];
|
||
|
|
uint16_t humtick = res[3] << 8 | res[4];
|
||
|
|
|
||
|
|
temp = -45 + (((float)temptick * 175.0) / 65535.0);
|
||
|
|
hum = (100.0 * (float)humtick) / 65535.0;
|
||
|
|
EnvironmentDataMessage msg{temp, hum}; // create the system message
|
||
|
|
EventDispatcher::send_message(msg); // and send it
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace i2cdev
|