mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-30 01:36:50 -05:00
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++
/*
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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_bh1750.hpp"
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#include "utility.hpp"
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#include <algorithm>
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#include <cstdint>
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namespace i2cdev {
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#define BH1750_CONV_FACTOR 1.2
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#define BH1750_MODE 0x13
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bool I2cDev_BH1750::init(uint8_t addr_) {
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if (addr_ != I2CDEV_BH1750_ADDR_1) return false;
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addr = addr_;
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model = I2CDECMDL_BH1750;
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query_interval = 3;
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// power up
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uint8_t tmp = 0x01;
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if (!i2c_write(nullptr, 0, &tmp, 1)) {
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return false;
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}
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chThdSleepMilliseconds(10);
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// set mode
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tmp = BH1750_MODE;
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if (!i2c_write(nullptr, 0, &tmp, 1)) {
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return false;
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}
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chThdSleepMilliseconds(10);
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/*
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// unused, since default
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// mtreg
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tmp = (0b01000 << 3) | (69 >> 5);
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if (!i2c_write(nullptr, 0, &tmp, 1)) {
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return false;
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}
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chThdSleepMilliseconds(10);
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tmp = (0b011 << 5) | (69 & 0b11111);
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if (!i2c_write(nullptr, 0, &tmp, 1)) {
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return false;
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}
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chThdSleepMilliseconds(10);
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// mode
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tmp = BH1750_MODE;
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if (!i2c_write(nullptr, 0, &tmp, 1)) {
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return false;
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}
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chThdSleepMilliseconds(10);
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*/
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return true;
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}
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void I2cDev_BH1750::update() {
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uint16_t light = readLight();
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LightDataMessage msg{light};
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EventDispatcher::send_message(msg);
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}
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uint16_t I2cDev_BH1750::readLight() {
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float level = -1.0;
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uint8_t tmp[2];
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// Read two bytes from the sensor, which are low and high parts of the sensor value
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if (i2c_read(nullptr, 0, tmp, 2)) {
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uint16_t t = (tmp[0] << 8) | tmp[1];
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level = t;
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}
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if (level != -1.0) {
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// Convert raw value to lux
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level /= BH1750_CONV_FACTOR;
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} else
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return 0;
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return level;
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}
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} /* namespace i2cdev */ |