mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-14 02:04:31 -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
125 lines
3.5 KiB
C++
125 lines
3.5 KiB
C++
/*
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* Copyright (C) 2024 jLynx.
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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_ads1110.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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bool I2cDev_ADS1110::init(uint8_t addr_) {
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if (addr_ != I2CDEV_ADS1110_ADDR_1) return false;
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addr = addr_;
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model = I2CDEVMDL_ADS1110;
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query_interval = BATTERY_WIDGET_REFRESH_INTERVAL;
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if (detect()) {
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// Set the configuration register
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write(0x8C);
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return true;
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}
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return false;
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}
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bool I2cDev_ADS1110::detect() {
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uint8_t data[3];
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if (i2cbus.receive(addr, data, 3)) {
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// Check if the received data is valid
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uint8_t configRegister = data[2];
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if ((configRegister & 0x0F) == 0x0C) {
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// The configuration register value matches the expected value (0x8C)
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return true;
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}
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}
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return false;
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}
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void I2cDev_ADS1110::update() {
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uint16_t voltage = readVoltage();
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uint8_t batteryPercentage = battery::BatteryManagement::calc_percent_voltage(voltage);
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// send local message
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BatteryStateMessage msg{1, batteryPercentage, false, voltage};
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EventDispatcher::send_message(msg);
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}
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bool I2cDev_ADS1110::write(const uint8_t value) {
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return i2cbus.transmit(addr, &value, 1);
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}
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// returns the batt voltage in mV
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uint16_t I2cDev_ADS1110::readVoltage() {
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// Read the conversion result
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uint8_t data[3];
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if (!i2cbus.receive(addr, data, 3)) {
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return 0.0f; // Return 0 if the read fails
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}
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uint16_t raw = (static_cast<uint16_t>(data[0]) << 8) | data[1];
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// Calculate the voltage based on the output code
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int16_t voltage = 0;
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float minCode = 0;
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float pga = 0.0f;
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uint8_t pga_rate = data[2] & 0x03;
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switch (pga_rate) {
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case 0:
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pga = 1.0f;
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break;
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case 1:
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pga = 2.0f;
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break;
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case 2:
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pga = 4.0f;
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break;
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case 3:
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pga = 8.0f;
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break;
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default:
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// Handle invalid data rate
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break;
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}
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uint8_t data_rate = (data[2] >> 2) & 0x03;
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switch (data_rate) {
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case 0: // 240
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minCode = -2048.0;
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break;
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case 1: // 60
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minCode = -8192.0;
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break;
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case 2: // 30
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minCode = -16384.0;
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break;
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case 3: // 15
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minCode = -32768.0;
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break;
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default:
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// Handle invalid data rate
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break;
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}
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// 2.048 is the reference voltage & 2.0 is to make up for the voltage divider
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voltage = (int16_t)(raw / (-1.0 * minCode) * pga * 2.048 * 2.0 * 1000.0); // v to mV
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if (voltage < 0) voltage *= -1; // should not happen in this build, but prevent it
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return (uint16_t)voltage;
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}
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} /* namespace i2cdev */ |