This I2C digital temperature sensor is one of the more accurate/precise we’ve ever seen with a typical accuracy of 0.25C over the sensor’s 40C to +125C range and precision of +0.0625C. 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 it usable with 2.7V to 5.5V logic!