Coredump Sessions

#005: The Current Realities of Cellular IoT

Coredump Sessions

Show Notes

In today’s Coredump Session, we zoom in on the rapidly evolving world of cellular IoT—what’s working, what’s changing, and what developers should know. With expert insight from Fabien Korheim of ONES, the conversation breaks down MVNOs vs MNOs, dives into certification hurdles, explores connectivity trade-offs like NB-IoT vs LTE-M, and unpacks why cellular is quietly powering more devices than you think. Whether you're building metering devices or baby monitors, this one hits the full stack—from tech to business models. Key Takeaways: MVNOs simplify global IoT deployments by abstracting regional carrier relationships and reducing SKU complexity. LTE-M is currently the safest bet for low-power cellular applications, with 5G RedCap positioned as a future alternative. Certification processes are lighter with MVNOs, especially when using pre-approved modules. Cellular IoT is ideal where Wi-Fi isn’t guaranteed, like basements, forests, and mobile tracking. Consumer IoT has huge untapped potential—cellular can dramatically improve usability and reduce returns. Battery life and data costs are major design considerations, especially when scaling fleets globally. Multiradio devices and smart fallback strategies (e.g. BLE/Wi-Fi + Cellular) are becoming more common. Debugging tools and observability platforms are essential for maintaining reliability across networks, devices, and regions. Chapters: 00:00 Episode Teasers & Intro02:34 MVNO vs MNO: What’s the Difference?06:28 Certifications, SIMs & Simplifying Deployment12:31 NB-IoT, LTE-M, LoRaWAN & Satellite—Explained23:43 5G for IoT: Hype or Here?27:14 Top Use Cases: Meters, Trackers & Wildlife33:28 The Big Opportunity: Cellular in Consumer Devices36:33 Business Models: Who Pays for Cellular?37:49 Getting Started: Kits, SIMs & Copy-Paste Firmware41:59 Common Mistakes & What to Watch in the Field47:15 What to Measure: Observability That Scales49:13 Q&A: Prioritization, Firmware Updates, RedCap & More

⁠⁠Join the Interrupt Slack

Watch this episode on YouTube

⁠Suggest a Guest⁠ Follow Memfault ⁠⁠LinkedIn⁠⁠ ⁠⁠Bluesky⁠⁠ ⁠⁠Twitter⁠⁠

Other ways to listen: ⁠⁠Apple Podcasts iHeartRadio⁠⁠ ⁠⁠Amazon Music GoodPods Castbox ⁠⁠ ⁠⁠Visit our website

More from Coredump Sessions

Oct 5, 2026

In this Coredump Session, François Baldassari and Chris Coleman are joined by Torstein Nesse, co-founder and CEO of Monil, to explore the engineering behind solar-powered livestock collars that replace physical fences with virtual boundaries. Torstein shares his path from embedded security to building a connected hardware business, and explains how Monil combines positioning, motion sensors, and sound to guide animals. The conversation covers low-power design, cellular connectivity in rural areas, offline operation, hardware selection, and the field telemetry needed to understand device behavior. They also discuss seasonal firmware updates, a four-month network debugging challenge, and how an animal-health alert helped farmers discover cattle in danger.

Sep 16, 2026

In this Coredump Session, François Baldassari and Chris Coleman are joined by Nordic Semiconductor VP of Product Security, Nicolas Schieli, to break down what the EU Cyber Resilience Act (CRA) means for teams building connected products. With the CRA’s first reporting requirements now in effect, they discuss what companies need to do today, how the 24-hour vulnerability reporting window works, which products fall within scope, and what changes when the broader requirements take effect in December 2027. The conversation also covers threat modeling, secure development processes, product classifications, SBOMs, long-term support, OTA updates, secure boot, open source dependencies, and how AI can fit into CRA workflows. Key Takeaways: The CRA’s vulnerability reporting requirements are already in effect, including a 24-hour reporting window for severe incidents or actively exploited vulnerabilities.

Jun 25, 2026

In today's Coredump Session, we explore how Elemind is turning cutting-edge neuroscience into a wearable device that helps people fall asleep faster. CTO David Wang joins the show to unpack the engineering behind real-time brainwave sensing, closed-loop audio stimulation, and the embedded systems powering the technology. Along the way, the conversation dives into the challenges of building consumer neurotech, making advanced science effortless to use, and how AI could personalize sleep in the future.

May 13, 2026

In this Coredump Session, Tyler Hoffman joins us as host and Yoto co-founders Ben Drury and Filip Denker shared how they built one of the fastest-growing brands in kid tech around a simple idea, a screen-free audio player designed for real family life. They discussed how feedback from kids shaped key hardware decisions across multiple generations of devices, and how the team balanced durability, battery life, and connectivity as Yoto scaled globally. The conversation also explored how their approach to device monitoring and updates evolved alongside their growing fleet.

Mar 25, 2026

Summary:In today's Coredump Session, we sit down with Noah Pasek-Nelson and Chris Markus, the co-founders of BootLoop: an AI-powered platform purpose-built for firmware teams. The conversation gets into the real mechanics of how AI actually fits into embedded development workflows, from hardware bring-up and driver generation to hardware-in-the-loop testing and field debugging. Noah and Chris bring hard-won perspective from SpaceX, MIT, and FDA-regulated medical devices, and they don't shy away from the messy questions— hallucination, autonomy, trust, and what it actually takes to close the loop when your runtime is physical hardware. Key Takeaways: BootLoop is an AI platform built for the entire firmware lifecycle, from hardware bring-up through field debugging, not just code generation. The two core pillars are hardware understanding (ingesting schematics, data sheets, netlists) and hardware interaction (oscilloscopes, logic analyzers, GDB). Firmware engineers only spend about 20% of their time writing code. The rest is testing, debugging, and validation, which is where BootLoop focuses. Agents do their best work in tight feedback loops. BootLoop builds, flashes, and tests on device automatically so the agent can iterate without human intervention. Hardware understanding eliminates hallucination by grounding the model in your specific chips, register maps, and pin configurations rather than public code averages. Power optimization is a standout use case: feed in the data sheet, connect a power meter, set a target, and come back to optimized code. BootLoop supports C, C++, Rust, Zephyr, bare metal, and embedded Linux. HDL and FPGA support is coming. Sentinel, their field debugging product, automatically kicks off root cause analysis the moment a bug comes in from the field, before an engineer even sits down. Pricing is a flat fee with unlimited usage, intentionally aligned so the incentive is correct code, not more code. New chips are supported as fast as you can upload the documentation. There is no supported chips list. Chapters: 00:00 Intro: AI at the Bench for Firmware Teams02:23 What Is BootLoop? Meet the Founders05:18 What Actually Changes Day-to-Day for Firmware Engineers07:13 The Hallucination Problem and How to Solve It in Hardware09:51 From Data Sheet to Flashed Device: A Live Workflow Demo11:20 Oscilloscopes, GDB, and Natural Language: Hardware Interaction Explained13:34 How Much Babysitting Does an AI Agent Actually Need?45:59 Greenfield vs. Brownfield: Where BootLoop Fits Best47:33 Audience Q&A: Business Model, Security, and Supported Chips57:35 Debugging in the Field: Sentinel, MCP, and Root Cause Analysis1:00:04 Closing Thoughts and How to Get a Demo Join the Interrupt Slack ⁠⁠ ⁠⁠Watch this episode on YouTube [ADD Playlist YT Link from here)⁠⁠ Follow Memfault ⁠⁠LinkedIn⁠⁠ ⁠⁠Bluesky⁠⁠ ⁠⁠Twitter⁠⁠ Other ways to listen: ⁠⁠Apple Podcasts iHeartRadio⁠⁠ ⁠⁠Amazon Music GoodPods Castbox ⁠⁠ ⁠⁠Visit our website

See all episodes →