Datasheet
Arduino Code
Wiring for Arduino
You can easily wire this breakout to any microcontroller, we'll be using an Arduino. For another kind of microcontroller,
just make sure it has I2C capability, then port the code - its pretty simple stuff!
(https://adafru.it/dPs)
Connect Vin to the power supply, 3-5V is fine. Use the same voltage that the microcontroller logic is based off of.
For most Arduinos, that is 5V
Connect GND to common power/data ground
Connect the SCL pin to the I2C clock SCL pin on your Arduino. On an UNO & '328 based Arduino, this is also
known as A5, on a Mega it is also known as digital 21 and on a Leonardo/Micro, digital 3
Connect the SDA pin to the I2C data SDA pin on your Arduino. On an UNO & '328 based Arduino, this is also
known as A4, on a Mega it is also known as digital 20 and on a Leonardo/Micro, digital 2
Download Adafruit_Si5351
To begin reading sensor data, you will need to download the Adafruit_Si5351 Library from our github
repository (https://adafru.it/dPu). You can do that by visiting the github repo and manually downloading or, easier, just
click this button to download the zip
https://adafru.it/dPu
https://adafru.it/dPu
Rename the uncompressed folder Adafruit_Si5351 and check that the Adafruit_Si5351 folder contains
Adafruit_Si5351.cpp and Adafruit_Si5351.h
Place the Adafruit_Si5351 library folder your arduinosketchfolder/libraries/ folder.
You may need to create the libraries subfolder if its your first library. Restart the IDE.
We also have a great tutorial on Arduino library installation at:
http://learn.adafruit.com/adafruit-all-about-arduino-libraries-install-use (https://adafru.it/aYM)
Load Demo Sketch
Now you can open up File->Examples->Adafruit_Si5351->Si5351 and upload to your Arduino wired up to the sensor
(https://adafru.it/pBC)
© Adafruit Industries https://learn.adafruit.com/adafruit-si5351-clock-generator-breakout Page 11 of 26