forked from EmbeddedTeam/app_photomagnetic
eaa5d0c28b
- Add CONFIG_SAMPLE_NTC to CMakeLists.txt and Kconfig - Implement PI temperature controller with PWM output in heating.hpp - Convert NtcGroup from template to non-template class - Add LED helper class with flash support - Implement COM protocol handlers for device ID and running state - Add SPI, sensor, and PWM configuration to prj.conf - Remove indicator overlay and update main.cpp with temperature monitoring - Add test script for serial protocol communication
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
#ifndef THER_NTC_HPP
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#define THER_NTC_HPP
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#include <cmath>
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#include <zephyr/device.h>
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#include <zephyr/drivers/sensor.h>
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#include <zpp/result.hpp>
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namespace ther {
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class NtcGroup {
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public:
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/// Read all NTC sensors, return the maximum temperature value.
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/// Returns error if every sensor read fails.
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static auto GetSensorValue() -> zpp::result<sensor_value> {
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bool found = false;
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sensor_value max_val{};
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for (const auto *dev : s_devices) {
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if (0 != sensor_sample_fetch(dev)) {
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continue;
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}
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sensor_value val{};
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if (0 != sensor_channel_get(dev, SENSOR_CHAN_AMBIENT_TEMP, &val)) {
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continue;
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}
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if (!found || val.val1 > max_val.val1 ||
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(val.val1 == max_val.val1 && val.val2 > max_val.val2)) {
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max_val = val;
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found = true;
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}
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}
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if (found) {
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return max_val;
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}
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return zpp::error_code::k_io;
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}
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private:
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inline static const device *s_devices[] = {
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc1)),
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc2)),
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc3)),
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc4)),
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc5)),
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc6)),
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc7)),
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DEVICE_DT_GET(DT_NODELABEL(pole_ntc8)),
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};
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};
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} // namespace ther
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#endif // THER_NTC_HPP
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