Omron D6T thermal IR sensor (I2C)

library.properties

@@ -7,4 +7,4 @@ paragraph=Arduino application for Adafruit.io WipperSnapper
 category=Communication
 url=https://github.com/adafruit/Adafruit_Wippersnapper_Arduino
 architectures=*
-depends=SdFat - Adafruit Fork, Adafruit NeoPixel, Adafruit SPIFlash, ArduinoJson, Adafruit DotStar, Adafruit HDC302x, Adafruit INA219, Adafruit INA260 Library, Adafruit LTR329 and LTR303, Adafruit LTR390 Library, Adafruit MCP3421, Adafruit NAU7802 Library, Adafruit SleepyDog Library, Adafruit TMP117, Adafruit TinyUSB Library, Adafruit AHTX0, Adafruit BME280 Library, Adafruit BMP280 Library, Adafruit BMP3XX Library, Adafruit DPS310, Adafruit DS248x, Adafruit SCD30, Adafruit SGP30 Sensor, Adafruit SGP40 Sensor, Sensirion I2C SCD4x, Sensirion I2C SEN5X, Sensirion I2C SEN66, arduino-sht, Adafruit Si7021 Library, Adafruit MQTT Library, Adafruit MS8607, Adafruit MCP9808 Library, Adafruit MCP9600 Library, Adafruit MPL115A2, Adafruit MPRLS Library, Adafruit TSL2591 Library, Adafruit_VL53L0X, Adafruit VL53L1X, STM32duino VL53L4CD, STM32duino VL53L4CX, Adafruit_VL6180X, Adafruit PM25 AQI Sensor, Adafruit VCNL4020 Library, Adafruit VCNL4040, Adafruit VCNL4200 Library, Adafruit VEML7700 Library, Adafruit LC709203F, Adafruit LPS2X, Adafruit LPS28, Adafruit LPS35HW, Adafruit seesaw Library, Adafruit BME680 Library, Adafruit MAX1704X, Adafruit ADT7410 Library, Adafruit HTS221, Adafruit HTU21DF Library, Adafruit HTU31D Library, Adafruit PCT2075, hp_BH1750, ENS160 - Adafruit Fork, Adafruit BusIO, Adafruit Unified Sensor, Sensirion Core, Adafruit GFX Library, Adafruit LED Backpack Library, Adafruit LiquidCrystal, Adafruit SH110X, Adafruit SSD1306
+depends=OmronD6T - Community Fork, SdFat - Adafruit Fork, Adafruit NeoPixel, Adafruit SPIFlash, ArduinoJson, Adafruit DotStar, Adafruit HDC302x, Adafruit INA219, Adafruit INA260 Library, Adafruit LTR329 and LTR303, Adafruit LTR390 Library, Adafruit MCP3421, Adafruit NAU7802 Library, Adafruit SleepyDog Library, Adafruit TMP117, Adafruit TinyUSB Library, Adafruit AHTX0, Adafruit BME280 Library, Adafruit BMP280 Library, Adafruit BMP3XX Library, Adafruit DPS310, Adafruit DS248x, Adafruit SCD30, Adafruit SGP30 Sensor, Adafruit SGP40 Sensor, Sensirion I2C SCD4x, Sensirion I2C SEN5X, Sensirion I2C SEN66, arduino-sht, Adafruit Si7021 Library, Adafruit MQTT Library, Adafruit MS8607, Adafruit MCP9808 Library, Adafruit MCP9600 Library, Adafruit MPL115A2, Adafruit MPRLS Library, Adafruit TSL2591 Library, Adafruit_VL53L0X, Adafruit VL53L1X, STM32duino VL53L4CD, STM32duino VL53L4CX, Adafruit_VL6180X, Adafruit PM25 AQI Sensor, Adafruit VCNL4020 Library, Adafruit VCNL4040, Adafruit VCNL4200 Library, Adafruit VEML7700 Library, Adafruit LC709203F, Adafruit LPS2X, Adafruit LPS28, Adafruit LPS35HW, Adafruit seesaw Library, Adafruit BME680 Library, Adafruit MAX1704X, Adafruit ADT7410 Library, Adafruit HTS221, Adafruit HTU21DF Library, Adafruit HTU31D Library, Adafruit PCT2075, hp_BH1750, ENS160 - Adafruit Fork, Adafruit BusIO, Adafruit Unified Sensor, Sensirion Core, Adafruit GFX Library, Adafruit LED Backpack Library, Adafruit LiquidCrystal, Adafruit SH110X, Adafruit SSD1306

platformio.ini

@@ -86,6 +86,7 @@ lib_deps =
     adafruit/Adafruit PM25 AQI Sensor
     adafruit/Adafruit SH110X
     adafruit/Adafruit SSD1306
+    https://github.com/tyeth/omron-devhub_d6t-arduino.git
     https://github.com/pstolarz/OneWireNg.git
     https://github.com/milesburton/Arduino-Temperature-Control-Library.git
     https://github.com/Sensirion/arduino-sht.git
@@ -370,7 +371,7 @@ extra_scripts =  pre:rename_usb_config.py
 extends = common:esp32
 board = adafruit_qtpy_esp32s3_nopsram
 build_flags = -DARDUINO_ADAFRUIT_QTPY_ESP32S3_NOPSRAM
-board_build.partitions = tinyuf2-partitions-4MB.csv
+board_build.partitions = tinyuf2-partitions-8MB.csv
 extra_scripts = pre:rename_usb_config.py
 
 ; Adafruit QT Py ESP32-S3 with PSRAM

src/components/i2c/WipperSnapper_I2C.cpp

@@ -292,6 +292,17 @@ bool WipperSnapper_Component_I2C::initI2CDevice(
     _bme680->configureDriver(msgDeviceInitReq);
     drivers.push_back(_bme680);
     WS_DEBUG_PRINTLN("BME680 Initialized Successfully!");
+  } else if (strcmp("d6t1a", msgDeviceInitReq->i2c_device_name) == 0) {
+    _d6t1a = new WipperSnapper_I2C_Driver_D6T1A(this->_i2c, i2cAddress);
+    if (!_d6t1a->begin()) {
+      WS_DEBUG_PRINTLN("ERROR: Failed to initialize D6T1A");
+      _busStatusResponse =
+          wippersnapper_i2c_v1_BusResponse_BUS_RESPONSE_DEVICE_INIT_FAIL;
+      return false;
+    }
+    _d6t1a->configureDriver(msgDeviceInitReq);
+    drivers.push_back(_d6t1a);
+    WS_DEBUG_PRINTLN("D6T1A Initialized Successfully!");
   } else if (strcmp("dps310", msgDeviceInitReq->i2c_device_name) == 0) {
     _dps310 = new WipperSnapper_I2C_Driver_DPS310(this->_i2c, i2cAddress);
     if (!_dps310->begin()) {

src/components/i2c/WipperSnapper_I2C.h

@@ -27,6 +27,7 @@
 #include "drivers/WipperSnapper_I2C_Driver_BME680.h"
 #include "drivers/WipperSnapper_I2C_Driver_BMP280.h"
 #include "drivers/WipperSnapper_I2C_Driver_BMP3XX.h"
+#include "drivers/WipperSnapper_I2C_Driver_D6T1A.h"
 #include "drivers/WipperSnapper_I2C_Driver_DPS310.h"
 #include "drivers/WipperSnapper_I2C_Driver_DS2484.h"
 #include "drivers/WipperSnapper_I2C_Driver_ENS160.h"
@@ -149,6 +150,7 @@ class WipperSnapper_Component_I2C {
       _drivers_out; ///< List of i2c output drivers
   // Sensor driver objects
   WipperSnapper_I2C_Driver_AHTX0 *_ahtx0 = nullptr;
+  WipperSnapper_I2C_Driver_D6T1A *_d6t1a = nullptr;
   WipperSnapper_I2C_Driver_DPS310 *_dps310 = nullptr;
   WipperSnapper_I2C_Driver_DS2484 *_ds2484 = nullptr;
   WipperSnapper_I2C_Driver_ENS160 *_ens160 = nullptr;

src/components/i2c/drivers/WipperSnapper_I2C_Driver_D6T1A.h

@@ -0,0 +1,142 @@
+/*!
+ * @file WipperSnapper_I2C_Driver_D6T1A.h
+ *
+ * Device driver for a D6T1A thermal sensor.
+ *
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ * Copyright (c) Tyeth Gundry 2025 for Adafruit Industries.
+ *
+ * MIT license, all text here must be included in any redistribution.
+ *
+ */
+
+#ifndef WipperSnapper_I2C_Driver_D6T1A_H
+#define WipperSnapper_I2C_Driver_D6T1A_H
+
+#include <OmronD6T.h>
+
+#include "WipperSnapper_I2C_Driver.h"
+
+/**************************************************************************/
+/*!
+    @brief  Class that provides a sensor driver for the D6T1A temperature
+            and pressure sensor.
+*/
+/**************************************************************************/
+class WipperSnapper_I2C_Driver_D6T1A : public WipperSnapper_I2C_Driver {
+public:
+  /*******************************************************************************/
+  /*!
+      @brief    Constructor for an D6T1A sensor.
+      @param    i2c
+                The I2C interface.
+      @param    sensorAddress
+                7-bit device address.
+  */
+  /*******************************************************************************/
+  WipperSnapper_I2C_Driver_D6T1A(TwoWire *i2c, uint16_t sensorAddress)
+      : WipperSnapper_I2C_Driver(i2c, sensorAddress) {
+    _i2c = i2c;
+    _sensorAddress = sensorAddress;
+    _deviceTemp = NAN;
+    _objectTemp = NAN;
+    _lastRead = 0;
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Destructor for an D6T1A sensor.
+  */
+  /*******************************************************************************/
+  ~WipperSnapper_I2C_Driver_D6T1A() { delete _d6t1a; }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Initializes the D6T1A sensor and begins I2C.
+      @returns  True if initialized successfully, False otherwise.
+  */
+  /*******************************************************************************/
+  bool begin() {
+    _d6t1a = new OmronD6T(OmronD6T::D6T_1A, _i2c);
+    // attempt to initialize D6T1A
+    if (!_d6t1a->begin(_sensorAddress))
+      return false;
+    return true;
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Checks if sensor was read within last 1s, or is the first read.
+      @returns  True if the sensor was recently read, False otherwise.
+  */
+  /*******************************************************************************/
+  bool HasBeenReadInLast200ms() {
+    return _lastRead != 0 && millis() - _lastRead < 200;
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Reads the sensor.
+      @returns  True if the sensor was read successfully, False otherwise.
+  */
+  /*******************************************************************************/
+  bool ReadSensorData() {
+    // dont read sensor more than once per 200ms
+    if (HasBeenReadInLast200ms()) {
+      return true;
+    }
+
+    _d6t1a->read();
+    _deviceTemp = (float)_d6t1a->ambientTempC();
+    _objectTemp = (float)_d6t1a->objectTempC(0, 0);
+    _lastRead = millis();
+    return true;
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Gets the D6T1A's current temperature.
+      @param    tempEvent
+                Pointer to an Adafruit_Sensor event.
+      @returns  True if the temperature was obtained successfully, False
+                otherwise.
+  */
+  /*******************************************************************************/
+  bool getEventAmbientTemp(sensors_event_t *tempEvent) {
+    if (ReadSensorData() && _deviceTemp != NAN) {
+      // if the sensor was read recently, return the cached temperature
+      tempEvent->temperature = _deviceTemp;
+      return true;
+    }
+    return false; // sensor not read recently, return false
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Gets the D6T1A's object temperature.
+      @param    tempEvent
+                Pointer to an Adafruit_Sensor event.
+      @returns  True if the temperature was obtained successfully, False
+                otherwise.
+  */
+  /*******************************************************************************/
+  bool getEventObjectTemp(sensors_event_t *tempEvent) {
+    if (ReadSensorData() && _objectTemp != NAN) {
+      // if the sensor was read recently, return the cached temperature
+      tempEvent->temperature = _objectTemp;
+      return true;
+    }
+    return false; // sensor not read recently, return false
+  }
+
+protected:
+  float _deviceTemp;          ///< Device temperature in Celsius
+  float _objectTemp;          ///< Object temperature in Celsius
+  uint32_t _lastRead;         ///< Last time the sensor was read in milliseconds
+  OmronD6T *_d6t1a = nullptr; ///< D6T1A object
+};
+
+#endif // WipperSnapper_I2C_Driver_D6T1A