109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/*
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* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
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*
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* SPDX-License-Identifier: MIT
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*/
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/*
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Example using M5UnitUnified for UnitENVIV
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*/
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#include <M5Unified.h>
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#include <M5UnitUnified.h>
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#include <M5UnitUnifiedENV.h>
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#include <cmath>
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#define USING_ENV4
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namespace {
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auto& lcd = M5.Display;
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m5::unit::UnitUnified Units;
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#if defined(USING_ENV4)
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#pragma message "Using combined unit(ENV4)"
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m5::unit::UnitENV4 unitENV4;
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#else
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#pragma message "Using each unit"
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m5::unit::UnitSHT40 unitSHT40;
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m5::unit::UnitBMP280 unitBMP280;
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#endif
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#if defined(USING_ENV4)
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auto& sht40 = unitENV4.sht40;
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auto& bmp280 = unitENV4.bmp280;
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#else
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auto& sht40 = unitSHT40;
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auto& bmp280 = unitBMP280;
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#endif
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float calculate_altitude(const float pressure, const float seaLvhPa = 1013.25f)
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{
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return 44330.f * (1.0f - pow((pressure / 100.f) / seaLvhPa, 0.1903f));
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}
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} // namespace
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void setup()
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{
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M5.begin();
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auto pin_num_sda = M5.getPin(m5::pin_name_t::port_a_sda);
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auto pin_num_scl = M5.getPin(m5::pin_name_t::port_a_scl);
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M5_LOGI("getPin: SDA:%u SCL:%u", pin_num_sda, pin_num_scl);
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{
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using namespace m5::unit::bmp280;
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auto cfg = bmp280.config();
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cfg.osrs_pressure = Oversampling::X16;
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cfg.osrs_temperature = Oversampling::X2;
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cfg.filter = Filter::Coeff16;
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cfg.standby = Standby::Time500ms;
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bmp280.config(cfg);
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}
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#if defined(USING_ENV4)
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Wire.end();
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Wire.begin(pin_num_sda, pin_num_scl, 400000U);
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if (!Units.add(unitENV4, Wire) || !Units.begin()) {
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M5_LOGE("Failed to begin");
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lcd.clear(TFT_RED);
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while (true) {
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m5::utility::delay(10000);
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}
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}
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#else
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Wire.end();
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Wire.begin(pin_num_sda, pin_num_scl, 400000U);
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if (!Units.add(unitSHT40, Wire) || !Units.add(unitBMP280, Wire) || !Units.begin()) {
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M5_LOGE("Failed to begin");
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lcd.clear(TFT_RED);
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while (true) {
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m5::utility::delay(10000);
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}
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}
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#endif
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M5_LOGI("M5UnitUnified has been begun");
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M5_LOGI("%s", Units.debugInfo().c_str());
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lcd.clear(TFT_DARKGREEN);
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}
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void loop()
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{
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M5.update();
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Units.update();
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if (sht40.updated()) {
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M5.Log.printf(
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">SHT40Temp:%.4f\n"
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">Humidity:%.4f\n",
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sht40.temperature(), sht40.humidity());
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}
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if (bmp280.updated()) {
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auto p = bmp280.pressure();
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M5.Log.printf(
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">BMP280Temp:%.4f\n"
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">Pressure:%.4f\n"
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">Altitude:%.4f\n",
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bmp280.temperature(), p * 0.01f /* To hPa */, calculate_altitude(p));
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}
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}
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