mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-04 23:45:26 +00:00
83b65ba6ce
* message on dev list change * dc detect * added sht3x sensor. * separete environment data from light * max17055 moved to i2c dev * sht fix, goterror detection fix * fix ext sensor app display for a lot of devices. * added bh1750 driver * autoscan on main view * added devlist mutex * better timing * fix h2 sw8 on poweron by usb
97 lines
2.5 KiB
C++
97 lines
2.5 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_bh1750.hpp"
|
|
#include "utility.hpp"
|
|
#include <algorithm>
|
|
#include <cstdint>
|
|
|
|
namespace i2cdev {
|
|
|
|
#define BH1750_CONV_FACTOR 1.2
|
|
#define BH1750_MODE 0x13
|
|
|
|
bool I2cDev_BH1750::init(uint8_t addr_) {
|
|
if (addr_ != I2CDEV_BH1750_ADDR_1) return false;
|
|
addr = addr_;
|
|
model = I2CDECMDL_BH1750;
|
|
query_interval = 3;
|
|
|
|
// power up
|
|
uint8_t tmp = 0x01;
|
|
if (!i2c_write(nullptr, 0, &tmp, 1)) {
|
|
return false;
|
|
}
|
|
chThdSleepMilliseconds(10);
|
|
// set mode
|
|
tmp = BH1750_MODE;
|
|
if (!i2c_write(nullptr, 0, &tmp, 1)) {
|
|
return false;
|
|
}
|
|
chThdSleepMilliseconds(10);
|
|
|
|
/*
|
|
// unused, since default
|
|
// mtreg
|
|
tmp = (0b01000 << 3) | (69 >> 5);
|
|
if (!i2c_write(nullptr, 0, &tmp, 1)) {
|
|
return false;
|
|
}
|
|
chThdSleepMilliseconds(10);
|
|
tmp = (0b011 << 5) | (69 & 0b11111);
|
|
if (!i2c_write(nullptr, 0, &tmp, 1)) {
|
|
return false;
|
|
}
|
|
chThdSleepMilliseconds(10);
|
|
// mode
|
|
tmp = BH1750_MODE;
|
|
if (!i2c_write(nullptr, 0, &tmp, 1)) {
|
|
return false;
|
|
}
|
|
chThdSleepMilliseconds(10);
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
void I2cDev_BH1750::update() {
|
|
uint16_t light = readLight();
|
|
LightDataMessage msg{light};
|
|
EventDispatcher::send_message(msg);
|
|
}
|
|
|
|
uint16_t I2cDev_BH1750::readLight() {
|
|
float level = -1.0;
|
|
uint8_t tmp[2];
|
|
// Read two bytes from the sensor, which are low and high parts of the sensor value
|
|
if (i2c_read(nullptr, 0, tmp, 2)) {
|
|
uint16_t t = (tmp[0] << 8) | tmp[1];
|
|
level = t;
|
|
}
|
|
|
|
if (level != -1.0) {
|
|
// Convert raw value to lux
|
|
level /= BH1750_CONV_FACTOR;
|
|
} else
|
|
return 0;
|
|
return level;
|
|
}
|
|
|
|
} /* namespace i2cdev */ |