381: Mass Sponge Migration

Embedded.fm · 22 Jul 2021 · 57m · Episode 381

What this episode covers

Elecia White and Christopher White discuss Christopher's recent Kickstarter fulfillment, his learning journey with Blender for 3D graphics, and the importance of understanding Make and CMake for embedded build systems. They answer listener questions regarding unusual microcontrollers, specifically detailing a painful experience with Dallas Semiconductor 1-Wire authentication chips that turned out to be counterfeit. The episode also covers TCP/IP implementation on microcontrollers using lwIP and the challenges of sensor data interpretation.

Mentioned

Companies
Dallas Semiconductor, National Instruments, LeapFrog, Fitbit
Chips
TI CC2600
Tools
Blender, Make, CMake, InspectAR, Google Protobufs
Also
lwIP, Ian Hubert, Robert Mecklenburg, HDLC, Brilliant Abyss

Other shows on the same ground, closest first.

  • The Amp Hour · 1h 18m

    Why isn't this working?

    Chris Gammell, founder of Contextual Electronics, explains his transition from hardware consulting to learning embedded firmware to stabilize his income. He details his personal project involving an STM32F030 and a 433MHz transmitter, highlighting the steep learning curve of moving from Arduino to bare-metal C development. Gammell and guests Elecia White and Dave Jones discuss the importance of hiring tutors, using build logs for debugging, and the specific frustrations of dealing with obscure Chinese components and complex microcontroller peripherals like SPI displays and I2S audio.

  • The Amp Hour · 1h 03m

    Feels over reals

    Hosts Chris Gammell and Dave Jones discuss a variety of hardware engineering topics, starting with Jones's experience of a transformer failure in a Weller soldering iron due to a non-fused primary side. They then explore the new LoRa SIP from Microchip, which integrates a Cortex-M0+ and radio, and Microsemi's Polar Fire FPGAs with RISC-V cores. The conversation shifts to the ethics of scavenging electric scooters, the challenges of using a Neoden pick-and-place machine for small batches, and the planning for an upcoming KiCad layout contest.

  • The Spark Gap · 1h 07m

    The Spark Gap - Episode 38

    Hosts Carl and Corey discuss the Maxim DS2413 one-wire GPIO expander and the Maxim MAX3421E USB peripheral host controller, analyzing their specific use cases and limitations in embedded design. They then detail their podcasting setup, explaining their transition from a Guitar Hero USB microphone to Rode Procaster XLR microphones and a Focusrite Saffire Pro 24 audio interface to achieve multi-track recording. Finally, they share technical gripes regarding SPI bus mode inconsistencies and a Rigol DP832 power supply that failed by outputting 48 volts after a short circuit.

  • Hackaday Podcast · 1h 00m

    Ep067: Winking Out of IoT, Seas of LEDs, Stuffing PCBs, and Vectrex is Awesome

    Hackaday editors Mike Szczys and Elliot Williams discuss the cancellation of DEF CON, the announcement of the Teensy 4.1 microcontroller with fast Ethernet, and the Wink Hub's controversial shift to a $5/month subscription model. They also review several community hacks, including Hammond Pierce's reverse-engineered LED panels, Leo Frenke's projection-mapped LED sign, and Arcade Jason's Vectrex-to-oscilloscope adapter.

  • Hackaday Podcast · 55m

    Ep017: Are Cheap Microcontrollers Worth It? Android on Your Bike. Plus Food Printers and Coffee Bots

    Hackaday editors Mike Szczys and Elliot Williams discuss the PMS150C microcontroller, which costs only 3 cents but is one-time programmable, and explore a bike computer running Android that revealed GPL violations. They also cover a scratch-built smartwatch with a wood-filled PLA case, a LoRa repeater for high-altitude balloons, and an SNES emulator technique that improves Mode 7 graphics. The episode concludes with an interview with Craig Bishop about improving KiCad's auto-router.

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.