Meet the future of Satellite IoT: Starnote for Iridium and Notecard for Skylo

Blues Developers
What’s New
Resources
Blog
Technical articles for developers
Newsletter
The monthly Blues developer newsletter
Terminal
Connect to a Notecard in your browser
Developer Certification
Get certified on wireless connectivity with Blues
Webinars
Listing of Blues technical webinars
Blues.comNotehub.io
Shop
Docs
Button IconHelp
Notehub StatusVisit our Forum
Button IconSign In
Docs Home
What’s New
Resources
Blog
Technical articles for developers
Newsletter
The monthly Blues developer newsletter
Terminal
Connect to a Notecard in your browser
Developer Certification
Get certified on wireless connectivity with Blues
Webinars
Listing of Blues technical webinars
Blues.comNotehub.io
Shop
Docs
Notecard
Notecard API Reference
Notecard Guides
Notecard Firmware Releases
Notecard Walkthrough
Overview
Notecard Product Family
Notecard Requests & Responses
JSON Fundamentals
Notecard Interfaces
Essential Requests
Time & Location Requests
Inbound Requests & Shared Data
Web Transactions
Low Power Design
Low Bandwidth Design
Working with the Notecard AUX Pins
Updating Notecard Firmware
Advanced Notecard Configuration
Notecard Error and Status Codes
homechevron_rightDocschevron_rightNotecard

Notecard

The hub for documentation on Notecard. In-depth information about how the Notecard works, and how to configure the Notecard for your projects.

Notecard Walkthrough

A comprehensive walkthrough of the features and capabilities of the Notecard.

info

Notecard Overview

Get started with Notecard fundamentals

arrow_forward
list

Notecard Product Family

A list of all Notecard product offerings and their features

arrow_forward
sync_alt

Requests & Responses

Learn how to format requests to Notecard using JSON

arrow_forward
data_object

JSON Fundamentals

Standards for how Notecard works with JSON

arrow_forward
cable

Notecard Interfaces

How to communicate via USB, UART, AUX UART, or I2C

arrow_forward
star

Essential Requests

Core requests every developer should know

arrow_forward
schedule

Time & Location Requests

Requests for obtaining time and location

arrow_forward
cloud_download

Inbound Requests & Shared Data

Handle data sent from the cloud to your device

arrow_forward
public

Web Transactions

Perform HTTP requests and web-based operations

arrow_forward
battery_saver

Low Power Design

Optimize battery life and power consumption

arrow_forward
download

Low Bandwidth Design

Minimize data usage and optimize connectivity

arrow_forward
apps

Working with AUX Pins

Use auxiliary pins for additional functionality

arrow_forward
system_update

Updating Firmware

Keep your Notecard updated with the latest features

arrow_forward
tune

Advanced Configuration

A variety of advanced configuration scenarios for Notecard

arrow_forward
bug_report

Error & Status Codes

A list of Notecard error and status codes

arrow_forward

Notecard Resources

data_object

Notecard API Reference

Complete listing of all the requests you can send to the Notecard in host firmware.

Visit API reference arrow_forward
library_books

Notecard Guides

A series of in-depth guides to help you use different features of the Notecard.

Browse guides arrow_forward
system_update

Notecard Firmware Releases

A listing of all Notecard firmware versions, with instructions on how to update your devices.

Read update guide arrow_forward
Can we improve this page? Send us feedback
© 2025 Blues Inc.
© 2025 Blues Inc.
TermsPrivacy
Notecard Disconnected
Having trouble connecting?

Try changing your USB cable as some cables do not support transferring data. If that does not solve your problem, contact us at support@blues.com and we will get you set up with another tool to communicate with the Notecard.

Advanced Usage

The help command gives more info.

Connect a Notecard
Use USB to connect and start issuing requests from the browser.
Try Notecard Simulator
Experiment with the Notecard's API on a Simulator assigned to your free Notehub account.

Don't have an account? Sign up