v2.9 - adds support for the TMP102 - thank you @summetj

CHANGELOG.md

@@ -1,5 +1,7 @@
 Change Log
 ======================
+v2.9:
+* Adds support for the TMP102 temperature sensor
 
 v2.8:
 ---------

COMPILE_BINARY.md

@@ -52,6 +52,7 @@ Copy and paste the following into an empty sketch. Click on each link in turn to
 // http://librarymanager/All#SparkFun_SGP30
 // http://librarymanager/All#SparkFun_VCNL4040
 // http://librarymanager/All#SparkFun_MS5637
+// http://librarymanager/All#SparkFun_TMP102
 // http://librarymanager/All#SparkFun_TMP117
 // http://librarymanager/All#SparkFun_u-blox_GNSS
 // http://librarymanager/All#SparkFun_NAU7802

Firmware/OpenLog_Artemis/OpenLog_Artemis.ino

@@ -108,6 +108,7 @@
   (done) Add a fix for issue #109 - check if a BME280 is connected before calling multiplexerBegin: https://github.com/sparkfun/OpenLog_Artemis/issues/109
   (done) Correct issue #104. enableSD was redundant. The microSD power always needs to be on if there is a card inserted, otherwise the card pulls
          the SPI lines low, preventing communication with the IMU:  https://github.com/sparkfun/OpenLog_Artemis/issues/104
+  (done) Add support for TMP102 temperature sensor (while differentating between it and the ADS1015 (which share the same 4 addresses starting at 0x48)
 
   v2.2:
     Use Apollo3 v2.2.1 with changes by paulvha to fix Issue 117 (Thank you Paul!)
@@ -160,10 +161,12 @@
     The charsReceived debug print ("Total chars received: ") now excludes the length of the timestamps
     Consistent use of File32/ExFile/FsFile/File. Don't use SdFile for temporary files
 
+  v2.9
+    Adds support for TMP102 low(er) cost temperature sensor
 */
 
 const int FIRMWARE_VERSION_MAJOR = 2;
-const int FIRMWARE_VERSION_MINOR = 8;
+const int FIRMWARE_VERSION_MINOR = 9;
 
 //Define the OLA board identifier:
 //  This is an int which is unique to this variant of the OLA and which allows us
@@ -315,6 +318,7 @@ icm_20948_DMP_data_t dmpData; // Global storage for the DMP data - extracted fro
 #include "SparkFun_SGP30_Arduino_Library.h" //Click here to get the library: http://librarymanager/All#SparkFun_SGP30
 #include "SparkFun_VCNL4040_Arduino_Library.h" //Click here to get the library: http://librarymanager/All#SparkFun_VCNL4040
 #include "SparkFun_MS5637_Arduino_Library.h" //Click here to get the library: http://librarymanager/All#SparkFun_MS5637
+#include "SparkFunTMP102.h" //Click here to get the library: http://librarymanager/All#SparkFun_TMP102
 #include "SparkFun_TMP117.h" //Click here to get the library: http://librarymanager/All#SparkFun_TMP117
 #include "SparkFun_u-blox_GNSS_Arduino_Library.h" //http://librarymanager/All#SparkFun_u-blox_GNSS
 #include "SparkFun_Qwiic_Scale_NAU7802_Arduino_Library.h" //Click here to get the library: http://librarymanager/All#SparkFun_NAU7802

Firmware/OpenLog_Artemis/Sensors.ino

@@ -434,6 +434,20 @@ void gatherDeviceValues(char * sdOutputData, size_t lenData)
             }
           }
           break;
+        case DEVICE_TEMPERATURE_TMP102:
+          {
+            TMP102 *nodeDevice = (TMP102 *)temp->classPtr;
+            struct_TMP102 *nodeSetting = (struct_TMP102 *)temp->configPtr;
+
+            if (nodeSetting->log == true)
+            {
+                olaftoa(nodeDevice->readTempC(), tempData1, 4, sizeof(tempData1) / sizeof(char)); //Resolution to 0.0625°C, ACCURACY: 0.5°C (–25°C to +85°C)
+                sprintf(tempData, "%s,", tempData1);
+                strlcat(sdOutputData, tempData, lenData);
+
+            }
+          }
+          break;     
         case DEVICE_TEMPERATURE_TMP117:
           {
             TMP117 *nodeDevice = (TMP117 *)temp->classPtr;
@@ -1465,6 +1479,19 @@ static void getHelperText(char* helperText, size_t lenText)
             }
           }
           break;
+        case DEVICE_TEMPERATURE_TMP102:
+          {
+
+            struct_TMP102 *nodeSetting = (struct_TMP102 *)temp->configPtr;
+            if (nodeSetting->log)
+            {
+                 // Include unique ID's for bus/port/address for each TMP102 temp sensor
+                 char tempTxt[25];
+                 sprintf(tempTxt,"TMP102 %02X-%d-%02X DegC,", temp->muxAddress, temp->portNumber, temp->address);
+                 strlcat(helperText, tempTxt, lenText);
+            }
+          }
+          break;  
         case DEVICE_TEMPERATURE_TMP117:
           {
             struct_TMP117 *nodeSetting = (struct_TMP117 *)temp->configPtr;

Firmware/OpenLog_Artemis/autoDetect.ino

@@ -147,6 +147,12 @@ bool addDevice(deviceType_e deviceType, uint8_t address, uint8_t muxAddress, uin
         temp->configPtr = new struct_VCNL4040;
       }
       break;
+    case DEVICE_TEMPERATURE_TMP102:
+      {
+        temp->classPtr = new TMP102;
+        temp->configPtr = new struct_TMP102;
+      }
+      break;
     case DEVICE_TEMPERATURE_TMP117:
       {
         temp->classPtr = new TMP117;
@@ -402,6 +408,14 @@ bool beginQwiicDevices()
           temp->online = tempDevice->begin(qwiic); //Wire port
         }
         break;
+      case DEVICE_TEMPERATURE_TMP102:
+        {
+          TMP102 *tempDevice = (TMP102 *)temp->classPtr;
+          struct_TMP102 *nodeSetting = (struct_TMP102 *)temp->configPtr; //Create a local pointer that points to same spot as node does
+          if (nodeSetting->powerOnDelayMillis > qwiicPowerOnDelayMillis) qwiicPowerOnDelayMillis = nodeSetting->powerOnDelayMillis; // Increase qwiicPowerOnDelayMillis if required
+          temp->online = tempDevice->begin(temp->address, qwiic); //Address, Wire port
+        }
+        break;
       case DEVICE_TEMPERATURE_TMP117:
         {
           TMP117 *tempDevice = (TMP117 *)temp->classPtr;
@@ -819,6 +833,18 @@ void configureDevice(node * temp)
         sensor->setAmbientIntegrationTime(sensorSetting->ambientIntegrationTime);
       }
       break;
+
+    case DEVICE_TEMPERATURE_TMP102:
+      {
+        TMP102 *sensor = (TMP102 *)temp->classPtr;
+        struct_TMP102 *sensorSetting = (struct_TMP102 *)temp->configPtr;
+
+        // JWS - I did not initalize the TMP102 sensor, as they appear to
+        // work just fine with no special initalization code.
+
+
+      }
+      break;
     case DEVICE_TEMPERATURE_TMP117:
       {
         TMP117 *sensor = (TMP117 *)temp->classPtr;
@@ -1106,6 +1132,9 @@ FunctionPointer getConfigFunctionPtr(uint8_t nodeNumber)
     case DEVICE_PROXIMITY_VCNL4040:
       ptr = (FunctionPointer)menuConfigure_VCNL4040;
       break;
+    case DEVICE_TEMPERATURE_TMP102:
+      ptr = (FunctionPointer)menuConfigure_TMP102;
+      break;
     case DEVICE_TEMPERATURE_TMP117:
       ptr = (FunctionPointer)menuConfigure_TMP117;
       break;
@@ -1324,6 +1353,7 @@ void swap(struct node * a, struct node * b)
 #define ADR_MS8607 0x40 //Humidity portion of the MS8607 sensor
 #define ADR_UBLOX 0x42 //But can be set to any address
 #define ADR_ADS122C04 0x45 //Alternates: 0x44, 0x41 and 0x40
+#define ADR_TMP102 0x48 //Alternates: 0x49, 0x4A, and 0x4B
 #define ADR_TMP117 0x48 //Alternates: 0x49, 0x4A, and 0x4B
 #define ADR_ADS1015 0x48 //Alternates: 0x49, 0x4A, and 0x4B
 #define ADR_BIO_SENSOR_HUB 0x55
@@ -1488,10 +1518,54 @@ deviceType_e testDevice(uint8_t i2cAddress, uint8_t muxAddress, uint8_t portNumb
         if (sensor.begin(i2cAddress, qwiic) == true) //Address, Wire port
           return (DEVICE_TEMPERATURE_TMP117);
 
-        //Confidence: Low - only does a simple isConnected
+
+
+
+
+        // Confidence: Medium - does a simple isConnected check, and then tests that two bits are read/write to disambiguate
+        // from the TMP102 sensor, where those two bits are read only 11.
         ADS1015 sensor1;
-        if (sensor1.begin(i2cAddress, qwiic) == true) //Address, Wire port
-          return (DEVICE_ADS1015);
+        if (sensor1.begin(i2cAddress, qwiic) == true)   //Address, Wire port
+        {
+           //Peek at the current config register (same 01 pointer addr as the TMP102)
+           uint16_t config = sensor1.readRegister(ADS1015_POINTER_CONFIG);
+
+           //Write zeros to the MUX[2:1] bits of the ADS1015 (read/write bits) which
+           // happen to be in the same place as the R1/R0 bits of the TMP102 (and
+           // are read only 11 on the TMP102
+           uint16_t newConfig = config & 0x9FFF;  // 0x9FFF is 1001 1111 1111 1111 so it zeros out those two bits
+
+           //SerialPrintf2("ADS1015 detect, newconfig is:: %x \r\n", newConfig);
+
+
+           sensor1.writeRegister(ADS1015_POINTER_CONFIG, newConfig);
+
+           //Read back to see if our changes were recorded (ADS1015) or not (TMP102)
+           newConfig = sensor1.readRegister(ADS1015_POINTER_CONFIG);
+
+
+           //SerialPrintf2("ADS105 detect, after write/read cycle, config is: %x \r\n", newConfig);
+
+
+           // Write the original config back to restore the correct state.
+           sensor1.writeRegister(ADS1015_POINTER_CONFIG, config);
+
+           //Check to see if the bits we wrote zero stayed at 00 (ADS1015) or returned as
+           // 1's because it's actually a TMP102 or some other chip with read only bits
+           // in that spot...
+           if( (newConfig & 0x6000) == 0 )  // 0x6000 is 0110 0000 0000 0000 so it zeros out all bits except the two we are interested in.
+           {
+               // Our cannary bits correctly stayed set at zero! Write successful, assume it is a ADS1015
+               return (DEVICE_ADS1015);
+
+           }
+           // Otherwise, fall through to the TMP102 test below, which just assumes anything on the correct address is in fact a TMP102 sensor...
+        } // end if there is a device on this address.
+
+        //Confidence: Low - only does a simple isConnected.
+        TMP102 sensor2;
+        if (sensor2.begin(i2cAddress, qwiic) == true) //Address, Wire port
+          return (DEVICE_TEMPERATURE_TMP102);
       }
       break;
     case 0x55:
@@ -1889,6 +1963,9 @@ const char* getDeviceName(deviceType_e deviceNumber)
     case DEVICE_PROXIMITY_VCNL4040:
       return "Proximity-VCNL4040";
       break;
+    case DEVICE_TEMPERATURE_TMP102:
+      return "Temperature-TMP102";
+      break;
     case DEVICE_TEMPERATURE_TMP117:
       return "Temperature-TMP117";
       break;

Firmware/OpenLog_Artemis/menuAttachedDevices.ino

@@ -297,6 +297,9 @@ void menuAttachedDevices()
           case DEVICE_PROXIMITY_VCNL4040:
             SerialPrintf3("%s VCNL4040 Proximity Sensor %s\r\n", strDeviceMenu, strAddress);
             break;
+          case DEVICE_TEMPERATURE_TMP102:
+            SerialPrintf3("%s TMP102 Temperature Sensor %s\r\n", strDeviceMenu, strAddress);
+            break;
           case DEVICE_TEMPERATURE_TMP117:
             SerialPrintf3("%s TMP117 High Precision Temperature Sensor %s\r\n", strDeviceMenu, strAddress);
             break;
@@ -1643,6 +1646,35 @@ void menuConfigure_VCNL4040(void *configPtr)
 
 }
 
+
+void menuConfigure_TMP102(void *configPtr)
+{
+  struct_TMP102 *sensorSetting = (struct_TMP102*)configPtr;
+  while (1)
+  {
+    SerialPrintln(F(""));
+    SerialPrintln(F("Menu: Configure TMP102 Temperature Sensor"));
+
+    SerialPrint(F("1) Sensor Logging: "));
+    if (sensorSetting->log == true) SerialPrintln(F("Enabled"));
+    else SerialPrintln(F("Disabled"));
+
+    SerialPrintln(F("x) Exit"));
+
+    byte incoming = getByteChoice(menuTimeout); //Timeout after x seconds
+
+    if (incoming == '1')
+      sensorSetting->log ^= 1;
+    else if (incoming == 'x')
+      break;
+    else if (incoming == STATUS_GETBYTE_TIMEOUT)
+      break;
+    else
+      printUnknown(incoming);
+  }
+
+}
+
 void menuConfigure_TMP117(void *configPtr)
 {
   struct_TMP117 *sensorSetting = (struct_TMP117*)configPtr;

Firmware/OpenLog_Artemis/nvm.ino

@@ -587,11 +587,17 @@ void recordDeviceSettingsToFile()
             settingsFile.println((String)base + "resolution=" + nodeSetting->resolution);
           }
           break;
+        case DEVICE_TEMPERATURE_TMP102:
+          {
+            struct_TMP102 *nodeSetting = (struct_TMP102 *)temp->configPtr;
+            settingsFile.println((String)base + "log=" + nodeSetting->log);
+          }
+          break;
         case DEVICE_TEMPERATURE_TMP117:
           {
             struct_TMP117 *nodeSetting = (struct_TMP117 *)temp->configPtr;
             settingsFile.println((String)base + "log=" + nodeSetting->log);
-            settingsFile.println((String)base + "logTemperature=" + nodeSetting->logTemperature);
+            settingsFile.println((String)base + "logTemperature=" + nodeSetting->logTemperature); // JWS: I don't think this value is ever changed?
           }
           break;
         case DEVICE_PRESSURE_MS5637:
@@ -1145,13 +1151,22 @@ bool parseDeviceLine(char* str) {
             SerialPrintf2("Unknown device setting: %s\r\n", deviceSettingName);
         }
         break;
+      case DEVICE_TEMPERATURE_TMP102:
+        {
+          struct_TMP102 *nodeSetting = (struct_TMP102 *)deviceConfigPtr; //Create a local pointer that points to same spot as node does
+          if (strcmp(deviceSettingName, "log") == 0)
+            nodeSetting->log = d;
+          else
+            SerialPrintf2("Unknown device setting: %s\r\n", deviceSettingName);
+        }
+        break;
       case DEVICE_TEMPERATURE_TMP117:
         {
           struct_TMP117 *nodeSetting = (struct_TMP117 *)deviceConfigPtr; //Create a local pointer that points to same spot as node does
           if (strcmp(deviceSettingName, "log") == 0)
             nodeSetting->log = d;
           else if (strcmp(deviceSettingName, "logTemperature") == 0)
-            nodeSetting->logTemperature = d;
+            nodeSetting->logTemperature = d;  // JWS: I don't think this value is ever used??
           else
             SerialPrintf2("Unknown device setting: %s\r\n", deviceSettingName);
         }

Firmware/OpenLog_Artemis/settings.h

@@ -34,6 +34,8 @@ typedef enum
   DEVICE_ADS1015,
   DEVICE_PRESSURE_LPS28DFW,
   DEVICE_LIGHT_VEML7700,
+  DEVICE_TEMPERATURE_TMP102,
+
 
   DEVICE_TOTAL_DEVICES, //Marks the end, used to iterate loops
   DEVICE_UNKNOWN_DEVICE,
@@ -170,12 +172,18 @@ struct struct_VL53L1X {
   unsigned long powerOnDelayMillis = minimumQwiicPowerOnDelay; // Wait for at least this many millis before communicating with this device. Increase if required!
 };
 
+struct struct_TMP102 {
+  bool log = true;
+  unsigned long powerOnDelayMillis = minimumQwiicPowerOnDelay; // Wait for at least this many millis before communicating with this device. Increase if required!
+};
+
+
 #define TMP117_MODE_CONTINUOUS 0
 #define TMP117_MODE_SHUTDOWN 1
 #define TMP117_MODE_ONESHOT 2
 struct struct_TMP117 {
   bool log = true;
-  bool logTemperature= true;
+  bool logTemperature= true;      // JWS : This value is set to true here, and then never changed ever again???
   int conversionMode = TMP117_MODE_CONTINUOUS;
   int conversionAverageMode = 0; //Setup for 15.5ms reads
   int conversionCycle = 0;

README.md

@@ -36,6 +36,7 @@ The OpenLog Artemis automatically scans, detects, configures, and logs various Q
 * [SDP3X Differential Pressure Sensor](https://www.sparkfun.com/products/17874)
 * [MS8607 Pressure Humidity Temperature Sensor](https://www.sparkfun.com/products/16298)
 * [MPR0025PA MicroPressure Sensor](https://www.sparkfun.com/products/16476)
+* [TMP102 Temperature Sensor] (https://www.sparkfun.com/products/13314)
 * [TMP117 High Precision Temperature Sensor](https://www.sparkfun.com/products/15805)
 * [AHT20 Humidity and Temperature Sensor](https://www.sparkfun.com/products/16618)
 * [SHTC3 Humidity and Temperature Sensor](https://www.sparkfun.com/products/16467)

SENSOR_UNITS.md

@@ -49,6 +49,7 @@ This document summarizes the units used for each sensor measurement.
 - [MCP9600 thermocouple amplifier](#MCP9600-thermocouple-amplifier)
 - [Qwiic PT100 ADS122C04 platinum resistance sensor](#Qwiic-PT100-ADS122C04-platinum-resistance-sensor)
 - [TMP117 precision temperature sensor](#TMP117-precision-temperature-sensor)
+- [TMP102 temperature sensor](#TMP102-temperature-sensor)
 
 ### Weight:
 
@@ -350,6 +351,13 @@ Fan operational status:
 | Temperature Internal | degC | Degrees Centigrade |
 | Raw Voltage | V*2.048/2^23 | Volts * 2.048 / 2<sup>23</sup> |
 
+---
+## TMP102 temperature sensor
+
+| []() | | |
+|---|---|---|
+| Temperature | degC | Degrees Centigrade |
+
 ---
 ## TMP117 precision temperature sensor