39: I Blame Space

Embedded.fm · 19 Feb 2014 · 1h 00m

What this episode covers

Jen Costillo, Director of Engineering at Bia Sport, discusses the challenges of shipping a GPS sports watch designed for women, including the decision to separate the GPS and GSM modem into a detachable 'Ghost Stick' to keep the watch slim. She details the hardware struggles of an underfunded startup, such as corrosion from saltwater exposure and the lack of discrete pull-up resistors on the PCB, which complicated firmware debugging. Costillo also explains the difference between casual activity trackers and serious sports wearables, emphasizing the need for ruggedness and safety features like SOS alerts.

Other shows on the same ground, closest first.

  • The Amp Hour · 1h 11m

    Secret Squirrel

    Chris Gammell of Contextual Electronics discusses his new role as a developer advocate, focusing on modular hardware like U-Blocks and the trend of integrating complex functions into single System-in-Package (SIP) modules such as the Octavo OSD335x-SM. Dave Jones of EEV Blog shares his experience prototyping a new multimeter with a South Korean manufacturing partner, detailing the financial risks and supply chain decisions involved in moving from prototype to pilot production. The conversation also covers the resurgence of retro computing standards like PC-104 and the strategic use of crowdfunding for hardware ventures.

  • The Amp Hour · 58m

    Shiny New Pebble with Eric Migicovsky

    Eric Migicovsky, founder of the original Pebble and CEO of CoreDevices, discusses the relaunch of Pebble and the development of the Index 01 smart ring. He contrasts the early days of Pebble—where he made costly mistakes like designing custom Bluetooth hardware instead of using modules—with the modern ease of finding factories and using off-the-shelf components like the Sifly chip for the new watch. Migicovsky explains the design philosophy behind the Index 01, which prioritizes a two-year battery life and 100% reliability over health tracking, using a Dialog Semiconductor chip to achieve its 'external brain RAM' function.

  • Coredump Sessions · 58m

    #018: The Hidden Complexity of Sleep Tech: Power, Comfort, and 8 Hours of Reliability

    Charles Taylor, co-founder of Ozlo Sleep, explains how his team revived Bose’s discontinued Sleepbuds by balancing extreme miniaturization, power efficiency, and firmware-driven reliability. He details the engineering challenges of designing earbuds smaller than AirPods that last 8-10 hours, the critical role of Kickstarter in building a beta community for real-world testing, and the strategic decision to pursue FDA clearance for software-based therapies rather than classifying the hardware as a medical device.

  • The Amp Hour · 1h 12m

    An Interview with Travis Goodspeed

    Travis Goodspeed, an independent hardware hacker and creator of the GoodFet and GoodWatch, discusses his history of open-source projects and the communities they spawn. He details the technical challenges of the GoodWatch, including using the TI CC430 chip for low-power paging and overcoming hardware bugs in the real-time clock. Goodspeed also explains how he reverse-engineered the MD380 radio firmware to add promiscuous mode and how the GoodFet evolved into the GreatFET for USB emulation and security testing.

  • The Amp Hour · 1h 23m

    An Interview With Andrew Witte - Telistic Timepiece Technomania

    Andrew Witte, CTO of Pebble Technology, discusses the design and manufacturing of the Pebble smartwatch, which raised $10 million via Kickstarter. He details the engineering trade-offs, including the choice of a Sharp Memory LCD for low power consumption, the challenges of Bluetooth antenna performance on a wrist, and the decision to use a single-cell lithium battery with a boost converter. Witte also explains the transition from local prototyping to overseas manufacturing with Dragon Innovation, managing component lead times, and the technical implementation of third-party app sandboxing using a Memory Protection Unit on an ARM Cortex-M3 microcontroller.

The summary, chapters and topics are generated from the episode’s audio by this directory, not written by Embedded.fm. The episode itself belongs to its publisher.