Fermion: MCP9808 High Accuracy Digital Temperature Sensor

1. Example Code for Arduino-Get Temperature

This example shows how the temperature is displayed on the serial port, with the measured value changing according to the ambient temperature.

2. Example Code for Arduino-Interrupt Mode

Example for temperature upper limit, lower limit, and critical value triggering interrupts.

3. Example Code for Arduino-Comparator Mode

Get the status of comparing the current temperature with the upper limit, lower limit and critical value.

Reference

Parameter	Details
Operating Voltage	2.7~5.5V
Operating Current	200μA (typical)
Accuracy	- ±0.25°C (typical) from -40°C to +125°C (Typical) - ±0.5°C (maximum) from -20°C to 100°C (Max) - ±1°C (maximum) from -40°C to +125°C (Min)
User-Selectable Measurement Resolution	+0.5°C, +0.25°C, +0.125°C, +0.0625°C
User-Programmable Temperature Alert	Temperature Threshold Alert, Critical Temperature Alert
Communication Interface	I2C (2.54mm Breakout)
Dimension	18.5×23mm/0.73×0.91"
Mounting Hole Size	2mm
Mounting Hole Pitch	18mm

Label	Description
VCC	Power Positive
GND	Power Negative
SCL	Clock line
SDA	Data line
ALT	Alert
A0	IIC Address Configuration Pin
A1	IIC Address Configuration Pin
A2	IIC Address Configuration Pin