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11
libraries/M5Unit-ENV/examples/UnitUnified/UnitCO2/PlotToSerial/PlotToSerial.ino Normal file
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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitCO2
Required
- M5Unified: https://github.com/m5stack/M5Unified
*/
#include "main/PlotToSerial.cpp"

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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitCO2
*/
// #define USING_M5HAL // When using M5HAL
#include <M5Unified.h>
#include <M5UnitUnified.h>
#include <M5UnitUnifiedENV.h>
namespace {
auto& lcd = M5.Display;
m5::unit::UnitUnified Units;
m5::unit::UnitCO2 unit;
} // namespace
void setup()
{
M5.begin();
auto pin_num_sda = M5.getPin(m5::pin_name_t::port_a_sda);
auto pin_num_scl = M5.getPin(m5::pin_name_t::port_a_scl);
M5_LOGI("getPin: SDA:%u SCL:%u", pin_num_sda, pin_num_scl);
#if defined(USING_M5HAL)
#pragma message "Using M5HAL"
// Using M5HAL
m5::hal::bus::I2CBusConfig i2c_cfg;
i2c_cfg.pin_sda = m5::hal::gpio::getPin(pin_num_sda);
i2c_cfg.pin_scl = m5::hal::gpio::getPin(pin_num_scl);
auto i2c_bus = m5::hal::bus::i2c::getBus(i2c_cfg);
if (!Units.add(unit, i2c_bus ? i2c_bus.value() : nullptr) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#else
#pragma message "Using Wire"
// Using TwoWire
Wire.end();
Wire.begin(pin_num_sda, pin_num_scl, 400000U);
if (!Units.add(unit, Wire) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#endif
M5_LOGI("M5UnitUnified has been begun");
M5_LOGI("%s", Units.debugInfo().c_str());
{
auto ret = unit.stopPeriodicMeasurement();
float offset{};
ret &= unit.readTemperatureOffset(offset);
uint16_t altitude{};
ret &= unit.readSensorAltitude(altitude);
uint16_t pressure{};
ret &= unit.readAmbientPressure(pressure);
bool asc{};
ret &= unit.readAutomaticSelfCalibrationEnabled(asc);
uint16_t ppm{};
ret &= unit.readAutomaticSelfCalibrationTarget(ppm);
ret &= unit.startPeriodicMeasurement();
M5.Log.printf(
" temp offset:%f\n"
" sensor altitude:%u\n"
"ambient pressure:%u\n"
" ASC enabled:%u\n"
" ASC target:%u\n",
offset, altitude, pressure, asc, ppm);
if (!ret) {
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
}
lcd.clear(TFT_DARKGREEN);
}
void loop()
{
M5.update();
Units.update();
if (unit.updated()) {
// Can be checked e.g. by serial plotters
M5.Log.printf(">CO2:%u\n>Temperature:%2.2f\n>Humidity:%2.2f\n", unit.co2(), unit.temperature(),
unit.humidity());
}
}

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libraries/M5Unit-ENV/examples/UnitUnified/UnitCO2L/PlotToSerial/PlotToSerial.ino Normal file
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/*
* SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitCO2L
Required
- M5Unified: https://github.com/m5stack/M5Unified
*/
#include "main/PlotToSerial.cpp"

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libraries/M5Unit-ENV/examples/UnitUnified/UnitCO2L/PlotToSerial/main/PlotToSerial.cpp Normal file
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/*
* SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitCO2L
*/
// #define USING_M5HAL // When using M5HAL
#include <M5Unified.h>
#include <M5UnitUnified.h>
#include <M5UnitUnifiedENV.h>
namespace {
auto& lcd = M5.Display;
m5::unit::UnitUnified Units;
m5::unit::UnitCO2L unit;
} // namespace
using namespace m5::unit::scd4x;
void setup()
{
M5.begin();
auto pin_num_sda = M5.getPin(m5::pin_name_t::port_a_sda);
auto pin_num_scl = M5.getPin(m5::pin_name_t::port_a_scl);
M5_LOGI("getPin: SDA:%u SCL:%u", pin_num_sda, pin_num_scl);
#if defined(USING_M5HAL)
#pragma message "Using M5HAL"
// Using M5HAL
m5::hal::bus::I2CBusConfig i2c_cfg;
i2c_cfg.pin_sda = m5::hal::gpio::getPin(pin_num_sda);
i2c_cfg.pin_scl = m5::hal::gpio::getPin(pin_num_scl);
auto i2c_bus = m5::hal::bus::i2c::getBus(i2c_cfg);
if (!Units.add(unit, i2c_bus ? i2c_bus.value() : nullptr) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#else
#pragma message "Using Wire"
// Using TwoWire
Wire.end();
Wire.begin(pin_num_sda, pin_num_scl, 400000U);
if (!Units.add(unit, Wire) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#endif
M5_LOGI("M5UnitUnified has been begun");
M5_LOGI("%s", Units.debugInfo().c_str());
{
auto ret = unit.stopPeriodicMeasurement();
float offset{};
ret &= unit.readTemperatureOffset(offset);
uint16_t altitude{};
ret &= unit.readSensorAltitude(altitude);
uint16_t pressure{};
ret &= unit.readAmbientPressure(pressure);
bool asc{};
ret &= unit.readAutomaticSelfCalibrationEnabled(asc);
uint16_t ppm{};
ret &= unit.readAutomaticSelfCalibrationTarget(ppm);
uint16_t initialPeriod{}, standardPeriod{};
ret &= unit.readAutomaticSelfCalibrationInitialPeriod(initialPeriod);
ret &= unit.readAutomaticSelfCalibrationStandardPeriod(standardPeriod);
ret &= unit.startPeriodicMeasurement();
M5.Log.printf(
" temp offset:%f\n"
" sensor altitude:%u\n"
"ambient pressure:%u\n"
" ASC enabled:%u\n"
" ASC target:%u\n"
" initial period:%u\n"
" standard period:%u\n",
offset, altitude, pressure, asc, ppm, initialPeriod, standardPeriod);
if (!ret) {
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(1000);
}
}
}
lcd.clear(TFT_DARKGREEN);
}
void loop()
{
M5.update();
auto touch = M5.Touch.getDetail();
// Periodic
Units.update();
if (unit.updated()) {
// Can be checked e.g. by serial plotters
M5.Log.printf(">CO2:%u\n>Temperature:%2.2f\n>Humidity:%2.2f\n", unit.co2(), unit.temperature(),
unit.humidity());
}
// Single shot
if (M5.BtnA.wasClicked() || touch.wasClicked()) {
static bool all{}; // false: RHT only
all = !all;
M5.Log.printf("Try single shot %u, waiting measurement...\n", all);
unit.stopPeriodicMeasurement();
Data d{};
if (all) {
if (unit.measureSingleshot(d)) {
M5.Log.printf(" SingleAll: %u/%2.2f/%2.2f\n", d.co2(), d.temperature(), d.humidity());
}
} else {
if (unit.measureSingleshotRHT(d)) {
M5.Log.printf(" SingleRHT: %2.2f/%2.2f", d.temperature(), d.humidity());
}
}
unit.startPeriodicMeasurement();
}
}

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libraries/M5Unit-ENV/examples/UnitUnified/UnitENVIII/PlotToSerial/PlotToSerial.ino Normal file
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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitENVIII
Required
- M5Unified: https://github.com/m5stack/M5Unified
*/
#include "main/PlotToSerial.cpp"

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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitENVIII
*/
#include <M5Unified.h>
#include <M5UnitUnified.h>
#include <M5UnitUnifiedENV.h>
// #define USING_M5HAL // When using M5HAL
// Using single shot measurement If defined
// #define USING_SINGLE_SHOT
// Using combined unit if defined
#define USING_ENV3
namespace {
auto& lcd = M5.Display;
m5::unit::UnitUnified Units;
#if defined(USING_ENV3)
#pragma message "Using combined unit(ENV3)"
m5::unit::UnitENV3 unitENV3;
#else
#pragma message "Using each unit"
m5::unit::UnitSHT30 unitSHT30;
m5::unit::UnitQMP6988 unitQMP6988;
#endif
#if defined(USING_ENV3)
auto& sht30 = unitENV3.sht30;
auto& qmp6988 = unitENV3.qmp6988;
#else
auto& sht30 = unitSHT30;
auto& qmp6988 = unitQMP6988;
#endif
} // namespace
void setup()
{
M5.begin();
auto pin_num_sda = M5.getPin(m5::pin_name_t::port_a_sda);
auto pin_num_scl = M5.getPin(m5::pin_name_t::port_a_scl);
M5_LOGI("getPin: SDA:%u SCL:%u", pin_num_sda, pin_num_scl);
#if defined(USING_SINGLE_SHOT)
{
auto cfg = sht30.config();
cfg.start_periodic = false;
sht30.config(cfg);
}
{
auto cfg = qmp6988.config();
cfg.start_periodic = false;
qmp6988.config(cfg);
}
#endif
#if defined(USING_ENV3)
#if defined(USING_M5HAL)
#pragma message "Using M5HAL"
m5::hal::bus::I2CBusConfig i2c_cfg;
i2c_cfg.pin_sda = m5::hal::gpio::getPin(pin_num_sda);
i2c_cfg.pin_scl = m5::hal::gpio::getPin(pin_num_scl);
auto i2c_bus = m5::hal::bus::i2c::getBus(i2c_cfg);
if (!Units.add(unitENV3, i2c_bus ? i2c_bus.value() : nullptr) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#else
#pragma message "Using Wire"
Wire.end();
Wire.begin(pin_num_sda, pin_num_scl, 400000U);
if (!Units.add(unitENV3, Wire) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#endif
#else
#if defined(USING_M5HAL)
#pragma message "Using M5HAL"
m5::hal::bus::I2CBusConfig i2c_cfg;
i2c_cfg.pin_sda = m5::hal::gpio::getPin(pin_num_sda);
i2c_cfg.pin_scl = m5::hal::gpio::getPin(pin_num_scl);
auto i2c_bus = m5::hal::bus::i2c::getBus(i2c_cfg);
if (!Units.add(unitSHT30, i2c_bus ? i2c_bus.value() : nullptr) ||
!Units.add(unitQMP6988, i2c_bus ? i2c_bus.value() : nullptr) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#else
#pragma message "Using Wire"
Wire.begin(pin_num_sda, pin_num_scl, 400000U);
if (!Units.add(unitSHT30, Wire) || !Units.add(unitQMP6988, Wire) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
#endif
#endif
M5_LOGI("M5UnitUnified has been begun");
M5_LOGI("%s", Units.debugInfo().c_str());
#if defined(USING_SINGLE_SHOT)
M5_LOGI("\n>>> Click BtnA to single shot measurement");
#endif
lcd.clear(TFT_DARKGREEN);
}
void loop()
{
M5.update();
Units.update();
#if defined(USING_SINGLE_SHOT)
if (M5.BtnA.wasClicked()) {
m5::unit::sht30::Data ds{};
if (sht30.measureSingleshot(ds)) {
M5.Log.printf(">SHT30Temp:%2.2f\n>Humidity:%2.2f\n", ds.temperature(), ds.humidity());
}
m5::unit::qmp6988::Data dq{};
if (qmp6988.measureSingleshot(dq)) {
M5.Log.printf(">QMP6988Temp:%2.2f\n>Pressure:%.2f\n", dq.temperature(), dq.pressure() * 0.01f);
}
}
#else
if (sht30.updated()) {
M5.Log.printf(">SHT30Temp:%2.2f\n>Humidity:%2.2f\n", sht30.temperature(), sht30.humidity());
}
if (qmp6988.updated()) {
M5.Log.printf(">QMP6988Temp:%2.2f\n>Pressure:%.2f\n", qmp6988.temperature(), qmp6988.pressure() * 0.01f);
}
#endif
}

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libraries/M5Unit-ENV/examples/UnitUnified/UnitENVIV/PlotToSerial/PlotToSerial.ino Normal file
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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitENVIV
Required
- M5Unified: https://github.com/m5stack/M5Unified
*/
#include "main/PlotToSerial.cpp"

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

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libraries/M5Unit-ENV/examples/UnitUnified/UnitENVPro/PlotToSerial/PlotToSerial.ino Normal file
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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitENVPro
Required
- M5Unified: https://github.com/m5stack/M5Unified
*/
#include "main/PlotToSerial.cpp"

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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitENVPro
*/
#include <M5Unified.h>
#include <M5UnitUnified.h>
#include <M5UnitUnifiedENV.h>
namespace {
auto& lcd = M5.Display;
m5::unit::UnitUnified Units;
m5::unit::UnitENVPro unit;
} // namespace
void setup()
{
M5.begin();
auto pin_num_sda = M5.getPin(m5::pin_name_t::port_a_sda);
auto pin_num_scl = M5.getPin(m5::pin_name_t::port_a_scl);
M5_LOGI("getPin: SDA:%u SCL:%u", pin_num_sda, pin_num_scl);
Wire.end();
Wire.begin(pin_num_sda, pin_num_scl, 400 * 1000U);
if (!Units.add(unit, Wire) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
M5_LOGI("M5UnitUnified has been begun");
M5_LOGI("%s", Units.debugInfo().c_str());
lcd.clear(TFT_DARKGREEN);
}
void loop()
{
M5.update();
Units.update();
if (unit.updated()) {
#if defined(UNIT_BME688_USING_BSEC2)
M5.Log.printf(">IAQ:%.2f\n>Temperature:%.2f\n>Pressure:%.2f\n>Humidity:%.2f\n>GAS:%.2f\n", unit.iaq(),
unit.temperature(), unit.pressure(), unit.humidity(), unit.gas());
#else
M5.Log.printf(">Temperature:%.2f\n>Pressure:%.2f\n>Humidity:%.2f\n>GAS:%.2f\n", unit.temperature(),
unit.pressure(), unit.humidity(), unit.gas());
m5::utility::delay(1000);
#endif
}
}

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libraries/M5Unit-ENV/examples/UnitUnified/UnitTVOC/PlotToSerial/PlotToSerial.ino Normal file
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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitTVOC
*/
#include "main/PlotToSerial.cpp"

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/*
* SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
*
* SPDX-License-Identifier: MIT
*/
/*
Example using M5UnitUnified for UnitTVOC
*/
#include <M5Unified.h>
#include <M5UnitUnified.h>
#include <M5UnitUnifiedENV.h>
#include <Wire.h>
namespace {
auto& lcd = M5.Display;
m5::unit::UnitUnified Units;
m5::unit::UnitTVOC unit;
} // namespace
void setup()
{
M5.begin();
auto pin_num_sda = M5.getPin(m5::pin_name_t::port_a_sda);
auto pin_num_scl = M5.getPin(m5::pin_name_t::port_a_scl);
M5_LOGI("getPin: SDA:%u SCL:%u", pin_num_sda, pin_num_scl);
Wire.end();
Wire.begin(pin_num_sda, pin_num_scl, 400 * 1000U);
if (!Units.add(unit, Wire) || !Units.begin()) {
M5_LOGE("Failed to begin");
lcd.clear(TFT_RED);
while (true) {
m5::utility::delay(10000);
}
}
M5_LOGI("M5UnitUnified has been begun");
M5_LOGI("%s", Units.debugInfo().c_str());
M5_LOGW("SGP30 measurement starts 15 seconds after begin");
lcd.clear(TFT_DARKGREEN);
}
void loop()
{
M5.update();
Units.update();
// SGP30 measurement starts 15 seconds after begin.
if (unit.updated()) {
// Can be checked on serial plotters
M5.Log.printf("\n>CO2eq:%u\n>TVOC:%u", unit.co2eq(), unit.tvoc());
}
}