{"title":"SparkFun MicroMod Environmental Function Board","handle":"sparkfun-micromod-environmental-function-board","url":"/products/sparkfun-micromod-environmental-function-board","description":"The SparkFun MicroMod Environmental Function Board adds additional sensing options to the MicroMod Processor Boards. This Function Board includes three sensors to monitor air quality (SGP40), humidity & temperature (SHTC3), and CO2 concentrations (STC31) in your indoor environment. To make it even easier to use, all communication is over the MicroMod's I2C bus!\nThe SGP40 measures the quality of the air in your room or house. The SGP40 uses a metal oxide (MOx) sensor with a temperature controlled micro hotplate and provides a humidity-compensated volatile organic compound (VOC) based indoor air quality signal. Both the sensing element and VOC Algorithm feature an unmatched robustness against contaminating gases present in real world applications enabling a unique long term stability as well as low drift and device to device variation.\nThe SHTC3 is a highly accurate digital humidity and temperature sensor. The SHTC3 uses a capacitive humidity sensor with a relative humidity measurement range of 0 to 100% RH and bandgap temperature sensor with a temperature measurement range of -40°C to 125°C. The SHTC3 builds on the success of their SHTC1 sensor with higher accuracy (±2% RH, ±0.2°C) than its predecessor, enabling greater flexibility.\nThe STC31 measures CO2 concentrations based on thermal conductivity and has two CO2 measurement ranges: 0 to 25 vol%; and 0 to 100 vol%. The measurement repeatability is 0.2 vol%, with a stability of 0.025 vol% / °C. The measurement accuracy depends on the measurement range: 0.5 vol% + 3% measured value; 1 vol% + 3% measured value. Using measurements from the SHTC3, the STC31 is able to provide humidity-compensated measurements together with improved temperature compensation. The STC31 can compensate for atmospheric pressure too - which is handy if, like us, you’re up in the mountains!\nThe outstanding performance of these three sensors is based on Sensirion’s patented CMOSens® technology, which combines the sensor element, signal processing, and digital calibration on a small CMOS chip. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.Utilizing our handy M.2 MicroMod connector, no soldering is required to connect it to your system. Simply match up the key on your processor and function board's beveled edge connector to their respective key on the M.2 connector, then secure them to the main board with screws. The MicroMod Environmental Function Board can then be read via the I2C port. The board is equipped with the AP2112 3.3V voltage regulator, I2C pull-up resistors, power LED, jumper to disable the LED, and jumpers for alternative STC31 addresses.\nNote: A MicroMod Processor and Main Board are not included with this MicroMod Environmental Function Board. These boards will need to be purchased separately.\nMicroMod is a modular interface ecosystem that connects a microcontroller “processor board” to various “carrier board” peripherals. Utilizing the M.2 standard, the MicroMod standard is designed to easily swap out processors and function boards on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!\nGet Started with the MicroMod Environmental Function BoardFeatures:\nInput voltage range 2.5V to 6.0V \nTyp. 5V via Main Board's USB connector\nTyp. ~3.7V to 4.2V via Main Board's LiPo battery Connector\n\n\n\nI/O voltage 3.3V\n\nAP2112 3.3V voltage regulator (rated 600mA)\nPower LED\nI2C pull-up resistors\n\nSensirion SGP40 Air Quality Sensor\nUses I2C interface Address: 0x59 (default)\n\n\nOperating voltage range 1.7V to 3.6V (Typ. 3.3V)\n\nOperating temperature range -20°C to +55°C\n\nTypical current consumption \n\n2.6mA during continuous operation (at 3.3V)\n\n34µA when idle (heater off)\n\n\nOutput signal \nDigital raw value (SRAW): 0 - 65535 ticks\nDigital processed value (VOC Index): 0 - 500 VOC index points\n\n\nSwitch-on behavior \nTime until reliably detecting VOC events: <60s\nTime until specifications are met: <1h\n\n\nRecommended sampling interval \nVOC Index: 1s\nSRAW: 0.5s - 10s (Typ. 1s)\n\n\n\n\n\nSensirion SHTC3 Humidity and Temperature Sensor\nUses I2C interface Address: 0x70 (default, non-configurable)\n\n\nOperating voltage range 1.62V - 3.6V (Typ. 3.3V)\n\nOperating temperature range -40°C to +125 °C\n\nRelative Humidity \nMeasurement range: 0% to 100%\nTypical accuracy: ±2 %RH\nResolution: 0.01 %RH\n\n\nTemperature \nMeasurement range: -40°C to +125 °C\nTypical accuracy: ±0.2 °C\nResolution: 0.01 °C\n\n\nTypical current consumption (varies based on mode) \n4.9µA to 430µA (Normal Mode)\n0.5µA to 270µA (Low Power Mode)\n\n\nAllows the STC31 to compensate for humidity and temperature\n\n\n\nSensirion STC31 CO2 Sensor\nUses I2C interface Addresses: 0x29 (default), 0x2A, 0x2B, 0x2C\n\nOperating voltage range 2.7V to 5.5V (Typ. 3.3V)\n\nOperating temperature range -20 °C to +85 °C\n\nCalibrated for CO2 in N2 and CO2 in air\nMeasurement ranges \n0 to 25 vol% in N2\n0 to 100 vol% in air\n\n\nAccuracy \n0.5 vol% + 3% measured value in N2\n1 vol% + 3% measured value in air\n\n\nConcentration and temperature resolution: 16-bit\nRepeatability: 0.2 vol%\nTemperature stability: 0.025 vol% / °C\nStart-up time: 14 ms\nThermal conductivity sensor provides calibrated gas concentration and temperature output\n\n\nJumpers \nPWR LED\nI2C pull-up resistors\nSTC31 address selection\n\n\n\nNote: The I2C addresses that are reserved for each sensor is 0x59 (SGP40), 0x70 (SHTC3), 0x29 (STC31). A multiplexer/Mux is required to communicate to multiple SHTC3 sensors on a single bus. The SHTC3 uses the same address as the Qwiic Mux (0x70). For advanced users that are using multiple SHTC3's with the Qwiic Mux, you will need to adjust the Qwiic Mux's default address.Documents:Hardware Documentation:\nSchematic\nEagle Files\nBoard Dimensions\nHookup Guide\nSGP40 \nSGP40 Datasheet\nVOC Index for Experts\nSGP40 Design In Guide\nSGP40 Quick Testing Guide\n\n\nSHTC3 SHTC3 Datasheet\n\nSTC3X \nSTC31 Datasheet\nSTC Field Calibration Guide\nSTC Design-In Guide\n\n\nArduino Libraries \nSGP40\nSHTC3\nSTC3X\n\n\nGitHub Hardware Repo\nMicroMod Documentation:\nGetting Started with MicroMod\nDesigning with MicroMod\nMicroMod Info Page\nMicroMod Forums\nVideos","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3119,"title":"Default Title","sku":"SF-SEN-18632","price":327.25,"on_sale":false,"in_stock":true,"available_quantity":208,"option1":"Default Title"}]}