SDK Examples

Blues provides a variety of host- and language-specific code samples to help you get started using our SDKs, specifically note-arduino and note-python.

Arduino Examples

The following examples are included in the note-arduino SDK.

• Example 0: Libraryless Communication
  • Learn how to communicate with a Notecard in Arduino without using the note-arduino library.
• Example 1: Notecard Basics
  • Learn the basics of communicating with a Notecard, including running a hub.set and note.add request.
• Example 2: Periodic Communications
  • Learn how to communicate with a Notecard in periodic mode, gathering sensor measurements "offline", and performing uploads on a periodic basis.
• Example 3: Inbound Polling
  • Learn how to use the Notecard to poll for inbound messages at a defined interval.
• Example 4: Inbound Interrupts
  • Learn how to use the Notecard to manage an inbound queue of messages using interrupts.
• Example 5: Using Templates
  • Learn how to use Note templates to send outbound Notes that use minimal bandwidth.
• Example 6: Sensor Tutorial
  • Learn how to collect sensor data and send it to the cloud using the Notecard. This code is also used by the sensor tutorial.
• Example 7: Power Control
  • Learn how the Notecard can be used to put a host to sleep, save some state for the host, wake it up periodically and return saved state to the host.
• Example 8: Send/Receive Binary Data
  • Learn how to both send and receive large binary data objects with the Notecard.
• Example 9: Send/Receive Binary Data (Chunked)
  • Learn how to send and receive large binary data objects that are split into smaller "chunks" for more efficient processing.

This example is separate from the note-arduino SDK.

• Adding Multiple Data Elements in Notecard Note
  • If you need to route multiple JSON data elements at once, the current best practice is to accumulate the data elements in a JSON array that is added to the Note body field.

Python Examples

The following examples are compatible with the note-python SDK.

• Notecard Basics
  • Examples for connecting to a Notecard over I2C, using a Raspberry Pi, using CircuitPython, and more.
• Reading and Syncing Sensor Data with the Notecard
  • Use Python on a Raspberry Pi, or CircuitPython, to read from a BME680 sensor and sync those values with the cloud.
• Writing Binary Data to the Notecard
  • This example writes an array of bytes to the binary data store on a Notecard and reads them back.
• Python Notecard DFU
  • This sample shows how to use the Notecard to update a Python application running on a Raspberry Pi.
• Python Large File Upload
  • This sample shows how to use the Notecard to upload a large file using the card.binary API and the Notecard Web request API.
• Python Raspberry Pi ATTN Pin
  • Example Raspberry Pi application in Python that enables users to send "commands" to Raspberry Pi from Notehub. Uses the ATTN Pin on Notecard to notify the Raspberry Pi a message is available to be read.