---
title: Guides And Tutorials
description: Guides & tutorials for learning Blues hardware and cloud services.
source_url: https://dev.blues.io/guides-and-tutorials/
canonical_url: https://dev.blues.io/guides-and-tutorials/
markdown_url: https://dev.blues.io/guides-and-tutorials.md
---

# Guides & Tutorials

Guides & tutorials for learning Blues hardware and cloud services.

## Hands-On Tutorials

### [Host Wiring Guide](https://dev.blues.io/guides-and-tutorials/host-wiring-guide.md)

[Learn how to wire a Notecard to a host MCU or SBC using I2C or UART, with examples for common boards.](https://dev.blues.io/guides-and-tutorials/host-wiring-guide.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/host-wiring-guide.md)

### [Collecting Sensor Data](https://dev.blues.io/guides-and-tutorials/collecting-sensor-data.md)

[A hands-on tutorial that walks you through collecting sensor data and sending it to Notehub.](https://dev.blues.io/guides-and-tutorials/collecting-sensor-data.md)

[Start tutorial](https://dev.blues.io/guides-and-tutorials/collecting-sensor-data.md)

### [Routing Data to Cloud](https://dev.blues.io/guides-and-tutorials/routing-data-to-cloud.md)

[A hands-on tutorial that guides you through securely forwarding your Notehub data to a variety of cloud providers and IoT platforms.](https://dev.blues.io/guides-and-tutorials/routing-data-to-cloud.md)

[Start tutorial](https://dev.blues.io/guides-and-tutorials/routing-data-to-cloud.md)

***

## Blues Guides

### [Best Practices for Production-Ready Projects](https://dev.blues.io/guides-and-tutorials/best-practices-for-production-ready-projects.md)

[A set of best practices for building production-ready projects with the Notecard and Notehub.](https://dev.blues.io/guides-and-tutorials/best-practices-for-production-ready-projects.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/best-practices-for-production-ready-projects.md)

### [Fleet Admin Guide](https://dev.blues.io/guides-and-tutorials/fleet-admin-guide.md)

[Dive into Notehub to discover features that allow you to inspect transferred data, manage device fleets, and perform cloud-based OTA DFU.](https://dev.blues.io/guides-and-tutorials/fleet-admin-guide.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/fleet-admin-guide.md)

### [Using the Notehub API](https://dev.blues.io/guides-and-tutorials/using-the-notehub-api.md)

[A tutorial on how to use the Notehub API to manage your projects.](https://dev.blues.io/guides-and-tutorials/using-the-notehub-api.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/using-the-notehub-api.md)

***

## Notecard Guides

Guides to help you configure and use the Notecard in your projects.

### [Asset Tracking with GPS](https://dev.blues.io/guides-and-tutorials/notecard-guides/asset-tracking-with-gps.md)

[Learn how to build location-aware applications using the Notecard's built-in GPS capabilities.](https://dev.blues.io/guides-and-tutorials/notecard-guides/asset-tracking-with-gps.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/asset-tracking-with-gps.md)

### [Attention Pin Guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/attention-pin-guide.md)

[Configure and use the Notecard's attention pin for efficient host-Notecard communication.](https://dev.blues.io/guides-and-tutorials/notecard-guides/attention-pin-guide.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/attention-pin-guide.md)

### [Connecting to a WiFi Access Point](https://dev.blues.io/guides-and-tutorials/notecard-guides/connecting-to-a-wifi-access-point.md)

[Configure a WiFi-capable Notecard to join an access point.](https://dev.blues.io/guides-and-tutorials/notecard-guides/connecting-to-a-wifi-access-point.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/connecting-to-a-wifi-access-point.md)

### [Debugging with FTDI Debug Cable](https://dev.blues.io/guides-and-tutorials/notecard-guides/debugging-with-the-ftdi-debug-cable.md)

[Use FTDI debug cables to troubleshoot and monitor Notecard communication protocols.](https://dev.blues.io/guides-and-tutorials/notecard-guides/debugging-with-the-ftdi-debug-cable.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/debugging-with-the-ftdi-debug-cable.md)

### [Encrypting and Decrypting Data](https://dev.blues.io/guides-and-tutorials/notecard-guides/encrypting-and-decrypting-data-with-the-notecard.md)

[Secure your IoT data with encryption and decryption techniques using the Notecard.](https://dev.blues.io/guides-and-tutorials/notecard-guides/encrypting-and-decrypting-data-with-the-notecard.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/encrypting-and-decrypting-data-with-the-notecard.md)

### [Feather MCU Low Power Management](https://dev.blues.io/guides-and-tutorials/notecard-guides/feather-mcu-low-power-management.md)

[Optimize power consumption for battery-powered projects using Feather MCUs.](https://dev.blues.io/guides-and-tutorials/notecard-guides/feather-mcu-low-power-management.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/feather-mcu-low-power-management.md)

### [Minimizing Latency](https://dev.blues.io/guides-and-tutorials/notecard-guides/minimizing-latency.md)

[Optimize your Notecard configuration to minimize communication latency.](https://dev.blues.io/guides-and-tutorials/notecard-guides/minimizing-latency.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/minimizing-latency.md)

### [Notecard Communication Without a Library](https://dev.blues.io/guides-and-tutorials/notecard-guides/notecard-communication-without-a-library.md)

[Communicate directly with the Notecard using raw JSON commands without libraries.](https://dev.blues.io/guides-and-tutorials/notecard-guides/notecard-communication-without-a-library.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/notecard-communication-without-a-library.md)

### [Remote Command and Control](https://dev.blues.io/guides-and-tutorials/notecard-guides/remote-command-and-control.md)

[Implement remote command and control functionality for your IoT devices using the Notecard.](https://dev.blues.io/guides-and-tutorials/notecard-guides/remote-command-and-control.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/remote-command-and-control.md)

### [Sending and Receiving Large Binary Objects](https://dev.blues.io/guides-and-tutorials/notecard-guides/sending-and-receiving-large-binary-objects.md)

[Handle large binary data transfers efficiently with the Notecard's binary object support.](https://dev.blues.io/guides-and-tutorials/notecard-guides/sending-and-receiving-large-binary-objects.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/sending-and-receiving-large-binary-objects.md)

### [Serial-Over-I2C Protocol](https://dev.blues.io/guides-and-tutorials/notecard-guides/serial-over-i2c-protocol.md)

[Understand and implement the Serial-Over-I2C protocol for Notecard communication.](https://dev.blues.io/guides-and-tutorials/notecard-guides/serial-over-i2c-protocol.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/serial-over-i2c-protocol.md)

### [Storing Device State with DB Notefiles](https://dev.blues.io/guides-and-tutorials/notecard-guides/storing-device-state-with-db-notefiles.md)

[Learn when to use DB Notefiles, the var API, and local-only .dbx Notefiles to manage state between your devices and Notehub.](https://dev.blues.io/guides-and-tutorials/notecard-guides/storing-device-state-with-db-notefiles.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/storing-device-state-with-db-notefiles.md)

### [Understanding Environment Variables](https://dev.blues.io/guides-and-tutorials/notecard-guides/understanding-environment-variables.md)

[Learn how to use environment variables to configure and customize Notecard behavior.](https://dev.blues.io/guides-and-tutorials/notecard-guides/understanding-environment-variables.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/understanding-environment-variables.md)

### [Using External SIM Cards](https://dev.blues.io/guides-and-tutorials/notecard-guides/using-external-sim-cards.md)

[Configure and use external SIM cards with your Notecard for cellular connectivity.](https://dev.blues.io/guides-and-tutorials/notecard-guides/using-external-sim-cards.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/using-external-sim-cards.md)

### [Using JSONata to Transform JSON](https://dev.blues.io/guides-and-tutorials/notecard-guides/using-jsonata-to-transform-json-in-notehub.md)

[Transform and manipulate JSON data using JSONata expressions in your Notecard applications.](https://dev.blues.io/guides-and-tutorials/notecard-guides/using-jsonata-to-transform-json-in-notehub.md)

[Read the guide](https://dev.blues.io/guides-and-tutorials/notecard-guides/using-jsonata-to-transform-json-in-notehub.md)