Ep 391: Tuned in to ESP32 SDR, New Old Pagers, and Bugs on Mars

Hackaday Podcast · 16 Oct 2026 · 1h 08m · Episode 391

What this episode covers

Hackaday editors Elliot Williams and Tom Nardi discuss the ESP32 SDR community, highlighting projects like Marvel's ESPDR that enable transmission on the 2.4 GHz band, and a Meshtastic pager built from a Motorola T900. They analyze the DARPA Lift Challenge, noting that a simple helicopter won over complex designs, and review a retro computing project using C64 SID chips on a Raspberry Pi Pico. The episode concludes with a deep dive into modern computer memory abstractions, including CRAM, and the retirement of the Little Fuse EZ80 microcontroller.

Mentioned

Products
Marvel's ESPDR, Motorola T900, Mars Pathfinder, RTL SDR, HackRF
Chips
ESP32, C64 SID, Raspberry Pi Pico, Little Fuse EZ80
Also
Meshtastic, DARPA Lift Challenge

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