---
title: Notecard Guides
description: A list of all guides for using the Blues Notecard to build IoT applications with Cellular, Satellite, LoRa, or WiFi connectivity.
source_url: https://dev.blues.io/guides-and-tutorials/notecard-guides/
canonical_url: https://dev.blues.io/guides-and-tutorials/notecard-guides/
markdown_url: https://dev.blues.io/guides-and-tutorials/notecard-guides.md
---

# Notecard Guides

Notecard is a wireless IoT device that helps connect your edge solution to cloud applications. Below you’ll find guides to help you use Notecard in different scenarios, and guides that can help you configure Notecard for 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, including hidden and enterprise networks.](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.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.md)

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