# Blog Posts **URL:** https://discuss.blues.com/c/blog-posts/24.md?page=1 [Latest](https://discuss.blues.com/latest.md) · [Categories](https://discuss.blues.com/categories.md) · [Tags](https://discuss.blues.com/tags.md) **Page:** 2 --- ## [JSONata 2.0 for Notehub Routes: New Features and How to Use Them](https://discuss.blues.com/t/jsonata-2-0-for-notehub-routes-new-features-and-how-to-use-them/3224)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [August 5, 2025, 8:02pm UTC](https://discuss.blues.com/t/jsonata-2-0-for-notehub-routes-new-features-and-how-to-use-them/3224 "2025-08-05T20:02:47Z")
JSONata 2.0 is now in Notehub routes. Here are the new operators, functions, and patterns that make IoT data transformations faster and easier. Read the full blog post at https://blues.dev/blog/take-advantage-jsonata-2… --- ## [Detecting Anomalous Devices With Notehub Smart Fleets](https://discuss.blues.com/t/detecting-anomalous-devices-with-notehub-smart-fleets/3207)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [July 30, 2025, 5:36pm UTC](https://discuss.blues.com/t/detecting-anomalous-devices-with-notehub-smart-fleets/3207 "2025-07-30T17:36:07Z")
A guide to using Notehub smart fleets to automatically detect anomalous devices—such as those that are tipped, tampered with, or reporting faulty sensor data. Read the full blog post at https://blues.dev/blog/detecting… --- ## [Taking Payments with Stripe and Notecard](https://discuss.blues.com/t/taking-payments-with-stripe-and-notecard/3150)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [July 7, 2025, 2:39pm UTC](https://discuss.blues.com/t/taking-payments-with-stripe-and-notecard/3150 "2025-07-07T14:39:27Z")
Learn how to use Stripe Payment Links and Notecard to easily take payments with your IoT system. Read the full blog post at https://blues.dev/blog/stripe-payment-notecard and continue the discussion here. --- ## [Notehub Batch Jobs: Automate Fleet-Wide IoT Workflows](https://discuss.blues.com/t/notehub-batch-jobs-automate-fleet-wide-iot-workflows/3124)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [June 25, 2025, 6:37pm UTC](https://discuss.blues.com/t/notehub-batch-jobs-automate-fleet-wide-iot-workflows/3124 "2025-06-25T18:37:38Z")
Run project-wide changes, generate fleet reports, and provision devices in bulk with Notehub batch jobs. Step-by-step examples for common automation tasks. Read the full blog post at https://blues.dev/blog/batch-jobs-a… --- ## [Perform Notecard Outboard Firmware Updates with GitHub Actions](https://discuss.blues.com/t/perform-notecard-outboard-firmware-updates-with-github-actions/3086)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [June 10, 2025, 2:24pm UTC](https://discuss.blues.com/t/perform-notecard-outboard-firmware-updates-with-github-actions/3086 "2025-06-10T14:24:56Z")
Use the Notehub ODFU GitHub Action to stage updates to the firmware of your Notecard host. Read the full blog post at https://blues.dev/blog/github-action-notehub-odfu and continue the discussion here. --- ## [Bridging the Gap: LTE Cat-1 bis and the Future of 5G IoT](https://discuss.blues.com/t/bridging-the-gap-lte-cat-1-bis-and-the-future-of-5g-iot/3069)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 3\ **Last updated:** [June 2, 2025, 4:19pm UTC](https://discuss.blues.com/t/bridging-the-gap-lte-cat-1-bis-and-the-future-of-5g-iot/3069 "2025-06-02T16:19:13Z")
What is LTE Cat-1 bis and how does it impact the future of 5G in the IoT? Read the full blog post at https://blues.dev/blog/bridging-the-gap-lte-cat-1-bis-future-5g and continue the discussion here. --- ## [How to Use Model Context Protocol (MCP) with Blues Notecard](https://discuss.blues.com/t/how-to-use-model-context-protocol-mcp-with-blues-notecard/3053)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [May 23, 2025, 3:39pm UTC](https://discuss.blues.com/t/how-to-use-model-context-protocol-mcp-with-blues-notecard/3053 "2025-05-23T15:39:55Z")
Add the hosted Blues Expert MCP server for Notecard docs, request validation, and firmware guidance, or self-host MCP servers that talk to Notecard and Notehub. Read the full blog post at https://blues.dev/blog/mcp-the… --- ## [Cellular IoT Module Comparison: Notecard vs DIY Arduino](https://discuss.blues.com/t/cellular-iot-module-comparison-notecard-vs-diy-arduino/3038)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [May 14, 2025, 2:53pm UTC](https://discuss.blues.com/t/cellular-iot-module-comparison-notecard-vs-diy-arduino/3038 "2025-05-14T14:53:09Z")
Side-by-side comparison of Blues Notecard versus a typical off-the-shelf cellular IoT module — the code, retries, power management, and OTA each one needs. Read the full blog post at https://blues.dev/blog/comparing-ce… --- ## [Debugging Embedded Applications on STM32](https://discuss.blues.com/t/debugging-embedded-applications-on-stm32/3027)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [May 6, 2025, 3:33pm UTC](https://discuss.blues.com/t/debugging-embedded-applications-on-stm32/3027 "2025-05-06T15:33:45Z")
An overview of debugging techniques for programs deployed to an STM32 microprocessor. Read the full blog post at https://blues.dev/blog/blues-university-debugging-embedded-stm32 and continue the discussion here. --- ## [Automating Firmware Management with the Notehub API](https://discuss.blues.com/t/automating-firmware-management-with-the-notehub-api/2690)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 4\ **Last updated:** [April 25, 2025, 5:36pm UTC](https://discuss.blues.com/t/automating-firmware-management-with-the-notehub-api/2690 "2025-04-25T17:36:19Z")
Learn how to use the Notehub API to manage firmware updates for your devices or fleets of devices. Read the full blog post at https://blues.dev/blog/automating-firmware-notehub-api and continue the discussion here. --- ## [Power Management and Energy Efficiency in Embedded Systems](https://discuss.blues.com/t/power-management-and-energy-efficiency-in-embedded-systems/3002)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [April 23, 2025, 2:06pm UTC](https://discuss.blues.com/t/power-management-and-energy-efficiency-in-embedded-systems/3002 "2025-04-23T14:06:40Z")
Learn about strategies that can help enhance the power efficiency of your embedded applications. Read the full blog post at https://blues.dev/blog/blues-university-power-management-energy-efficiency and continue the di… --- ## [Zephyr: Debugging Feather MCUs with note-zephyr](https://discuss.blues.com/t/zephyr-debugging-feather-mcus-with-note-zephyr/2993)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [April 16, 2025, 6:48pm UTC](https://discuss.blues.com/t/zephyr-debugging-feather-mcus-with-note-zephyr/2993 "2025-04-16T18:48:06Z")
Learn how to use note-zephyr to debug Zephyr RTOS applications for the Feather MCU. Read the full blog post at https://blues.dev/blog/zephyr-debugging-feather-mcus and continue the discussion here. --- ## [Configuring Your Notecard for GPS Tracking—A Beginner’s Guide](https://discuss.blues.com/t/configuring-your-notecard-for-gps-tracking-a-beginner-s-guide/2978)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [April 8, 2025, 5:45pm UTC](https://discuss.blues.com/t/configuring-your-notecard-for-gps-tracking-a-beginner-s-guide/2978 "2025-04-08T17:45:38Z")
Everything you need to know about configuring your first Notecard for GPS tracking Read the full blog post at https://blues.dev/blog/gps-tracking-beginner-guide and continue the discussion here. --- ## [JSON and JSONata Explained: Structure, Syntax, and Data Transformation](https://discuss.blues.com/t/json-and-jsonata-explained-structure-syntax-and-data-transformation/2965)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [April 2, 2025, 8:30pm UTC](https://discuss.blues.com/t/json-and-jsonata-explained-structure-syntax-and-data-transformation/2965 "2025-04-02T20:30:11Z")
A developer’s guide to JSON structure and data types, plus how to query and transform JSON with JSONata. Read the full blog post at https://blues.dev/blog/blues-university-anatomy-of-json-jsonata and continue the discu… --- ## [Zephyr: How to use Shells for Prototyping & Debugging Notecard Applications](https://discuss.blues.com/t/zephyr-how-to-use-shells-for-prototyping-debugging-notecard-applications/2947)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [March 27, 2025, 2:32pm UTC](https://discuss.blues.com/t/zephyr-how-to-use-shells-for-prototyping-debugging-notecard-applications/2947 "2025-03-27T14:32:47Z")
Learn how to use Zephyr Shells with examples for I2C, sensors, and custom Notecard commands. Read the full blog post at https://blues.dev/blog/zephyr-use-shells-for-prototyping and continue the discussion here. --- ## [Making Sense of Your IoT Data with AI](https://discuss.blues.com/t/making-sense-of-your-iot-data-with-ai/2851)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 2\ **Last updated:** [March 26, 2025, 3:44pm UTC](https://discuss.blues.com/t/making-sense-of-your-iot-data-with-ai/2851 "2025-03-26T15:44:23Z")
Leverage the APIs from Notehub and OpenAI to help interpret the data generated by your connected products. Read the full blog post at https://blues.dev/blog/making-sense-iot-data-with-ai and continue the discussion her… --- ## [Routing IoT Data to Adafruit IO (and Beyond)](https://discuss.blues.com/t/routing-iot-data-to-adafruit-io-and-beyond/2932)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [March 19, 2025, 3:46pm UTC](https://discuss.blues.com/t/routing-iot-data-to-adafruit-io-and-beyond/2932 "2025-03-19T15:46:22Z")
Learn how to use Notecard and Notehub to route collected sensor data for visualization (and more) on Adafruit IO. Read the full blog post at https://blues.dev/blog/routing-iot-data-to-adafruit-io-and-beyond and continu… --- ## [Sending Your IoT Data to a Cloud Platform](https://discuss.blues.com/t/sending-your-iot-data-to-a-cloud-platform/2907)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [March 11, 2025, 5:06pm UTC](https://discuss.blues.com/t/sending-your-iot-data-to-a-cloud-platform/2907 "2025-03-11T17:06:39Z")
An introduction to the how and why of syncing your IoT data with the cloud. Read the full blog post at https://blues.dev/blog/blues-university-sending-iot-data-cloud-platform and continue the discussion here. --- ## [Using Serial Logs Effectively](https://discuss.blues.com/t/using-serial-logs-effectively/2899)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [March 5, 2025, 4:25pm UTC](https://discuss.blues.com/t/using-serial-logs-effectively/2899 "2025-03-05T16:25:25Z")
A beginner’s guide for using serial logs to debug embedded programs. Read the full blog post at https://blues.dev/blog/blues-university-using-serial-logs-effectively and continue the discussion here. --- ## [Introducing Notehub Smart Fleets](https://discuss.blues.com/t/introducing-notehub-smart-fleets/2877)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [February 25, 2025, 5:24pm UTC](https://discuss.blues.com/t/introducing-notehub-smart-fleets/2877 "2025-02-25T17:24:29Z")
Learn about smart fleets, a new Notehub feature that lets you dynamically group your devices based on their data. Read the full blog post at https://blues.dev/blog/introducing-smart-fleets and continue the discussion h… --- ## [Using Environment Variables to Change Notecard Configuration](https://discuss.blues.com/t/using-environment-variables-to-change-notecard-configuration/2832)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 2\ **Last updated:** [February 13, 2025, 9:13pm UTC](https://discuss.blues.com/t/using-environment-variables-to-change-notecard-configuration/2832 "2025-02-13T21:13:03Z")
Learn how to use environment variables, both built-in and custom, to change Notecard configuration remotely. Read the full blog post at https://blues.dev/blog/changing-notecard-config-with-env-vars and continue the dis… --- ## [Introducing Mojo - A New Way to Measure Energy Usage in Battery-Powered Systems](https://discuss.blues.com/t/introducing-mojo-a-new-way-to-measure-energy-usage-in-battery-powered-systems/2802)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 3\ **Last updated:** [February 6, 2025, 2:44pm UTC](https://discuss.blues.com/t/introducing-mojo-a-new-way-to-measure-energy-usage-in-battery-powered-systems/2802 "2025-02-06T14:44:30Z")
Mojo is a Notecard companion device that measures power consumption in battery-powered systems. Read the full blog post at https://blues.dev/blog/introducing-mojo-power-consumption-monitor and continue the discussion h… --- ## [Zephyr: Message Queues for Real-Time Processing with the Notecard](https://discuss.blues.com/t/zephyr-message-queues-for-real-time-processing-with-the-notecard/2774)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [January 24, 2025, 2:39pm UTC](https://discuss.blues.com/t/zephyr-message-queues-for-real-time-processing-with-the-notecard/2774 "2025-01-24T14:39:15Z")
Learn how to use Zephyr’s Message Queues for real-time processing with the Notecard. Read the full blog post at https://blues.dev/blog/zephyr-message-queues-notecard and continue the discussion here. --- ## [Unit Testing JSONata Expressions in Notehub with JavaScript and Jest](https://discuss.blues.com/t/unit-testing-jsonata-expressions-in-notehub-with-javascript-and-jest/2611)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [January 8, 2025, 12:04pm UTC](https://discuss.blues.com/t/unit-testing-jsonata-expressions-in-notehub-with-javascript-and-jest/2611 "2025-01-08T12:04:54Z")
Using the popular JavaScript testing framework, Jest, you can test your JSONata expressions and Events from Notehub. Read the full blog post at https://blues.dev/blog/testing-jsonata-notehub-jest-javascript and continu… --- ## [Introducing Cygnet - The New STM32 Feather MCU from Blues](https://discuss.blues.com/t/introducing-cygnet-the-new-stm32-feather-mcu-from-blues/2514)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 3\ **Last updated:** [January 3, 2025, 2:33pm UTC](https://discuss.blues.com/t/introducing-cygnet-the-new-stm32-feather-mcu-from-blues/2514 "2025-01-03T14:33:12Z")
Cygnet is a new Feather-compatible host microcontroller from Blues - supporting Arduino, C, C++, and soon CircuitPython. Read the full blog post at https://blues.dev/blog/introducing-cygnet-stm32-feather-blues and cont… --- ## [How to Call Third-Party Web Services From Notecard](https://discuss.blues.com/t/how-to-call-third-party-web-services-from-notecard/2504)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [December 11, 2024, 7:32pm UTC](https://discuss.blues.com/t/how-to-call-third-party-web-services-from-notecard/2504 "2024-12-11T19:32:47Z")
Learn how to make external web requests with Notecard by building a project that retrieves current weather data from the OpenWeather API. Read the full blog post at https://blues.dev/blog/notecard-web-requests and cont… --- ## [Securing Edge Applications: Encryption with Notecard](https://discuss.blues.com/t/securing-edge-applications-encryption-with-notecard/2483)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [December 4, 2024, 5:52pm UTC](https://discuss.blues.com/t/securing-edge-applications-encryption-with-notecard/2483 "2024-12-04T17:52:46Z")
Learn how to secure your real world applications and protect sensitive data with Notecard and Notehub Read the full blog post at https://blues.dev/blog/securing-edge-applications-encryption-with-notecard and continue t… --- ## [6 Common IoT Transport Protocols: HTTP, MQTT, CoAP, and More](https://discuss.blues.com/t/6-common-iot-transport-protocols-http-mqtt-coap-and-more/2451)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [November 19, 2024, 7:11pm UTC](https://discuss.blues.com/t/6-common-iot-transport-protocols-http-mqtt-coap-and-more/2451 "2024-11-19T19:11:25Z")
A developer’s guide to the six most-used IoT transport protocols — HTTP, MQTT, TCP/IP, UDP, CoAP, and Matter — and how to choose between them. Read the full blog post at https://blues.dev/blog/blues-university-common-i… --- ## [What’s New in Notehub](https://discuss.blues.com/t/what-s-new-in-notehub/2440)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [November 13, 2024, 1:27pm UTC](https://discuss.blues.com/t/what-s-new-in-notehub/2440 "2024-11-13T13:27:13Z")
A look at the latest features we’ve shipped in Notehub, including JSONata improvements, new data exporting options, and two new integrations. Read the full blog post at https://blues.dev/blog/whats-new-in-notehub and c… --- ## [Why Beginning Embedded Developers Shouldn't be Afraid of C](https://discuss.blues.com/t/why-beginning-embedded-developers-shouldnt-be-afraid-of-c/2422)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 1\ **Last updated:** [November 5, 2024, 7:45pm UTC](https://discuss.blues.com/t/why-beginning-embedded-developers-shouldnt-be-afraid-of-c/2422 "2024-11-05T19:45:42Z")
Learn more about why C is such a popular language for embedded development and how it’s accessible even to Python, JavaScript, or Go developers. Read the full blog post at https://blues.dev/blog/blues-university-why-c-… [Previous page](https://discuss.blues.com/c/blog-posts/24.md) [Next page](https://discuss.blues.com/c/blog-posts/24.md?page=2)