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Adafruit MCP9808 High Accuracy I2C Temperature Sensor Breakout Board

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  • Adafruit MCP9808 High Accuracy I2C Temperature Sensor Breakout Board

    This I2C digital temperature sensor is one of the more accurate/precise Adafruit have ever seen, with a typical accuracy of ±0.25°C over the sensor's -40°C to +125°C range and precision of +0.0625°C. They work great with any microcontroller using standard i2c. There are 3 address pins so you can connect up to 8 to a single I2C bus without address collisions. Best of all, a wide voltage range makes is usable with 2.7V to 5.5V logic! 

    Unlike the DS18B20, this sensor does not come in through-hole package so they placed this small sensor on a breakout board PCB for easy use. The PCB includes mounting holes, and pull down resistors for the 3 address pins. They even wrote a lovely little tutorial and library that will work with any Arduino compatible. You'll be up and running in 15 minutes or less. 

    Some quick specs:

    • Simple I2C control
    • Up to 8 on a single I2C bus with adjustable address pins
    • 0.25°C typical precision over -40°C to 125°C range (0.5°C guaranteed max from -20°C to 100°C)
    • 0.0625°C resolution
    • 2.7V to 5.5V power and logic voltage range
    • Operating Current: 200 μA (typical)
    Technical specs:
    • Sensing Temperature: -40ºC ~ 125ºC
    • Accuracy: 0.25ºC typical
    • Voltage - Supply: 2.7V ~ 5.5V
    • Operating Temperature: -40ºC ~ 125ºC
    • Uses any I2C address from 0x18 thru 0x1F
    • 21mm x 13mm x 2mm / 0.8" x 0.5" x 0.08"
    • Weight: 0.9g

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