Desk of Ladyada: Stepper Spinner, LED Booster &amp; Radio Receiver

from Adafruit Industries · host Adafruit Industries

This week at our desk, we've been working through a substantial pile of prototypes to prepare them for the shop. Several designs from a few weeks ago are now ready. We tested the Ethernet breakout using the W5500 chip (https://www.digikey.com/en/products/detail/wiznet/W5500/4425702), which required no firmware. Additionally, we developed a driver for the STSPIN220 stepper motor driver (https://www.digikey.com/en/products/detail/stmicroelectronics/STSPIN220/6137574) with Claude 4. Our new designs this week include: TPS61169 LED Booster: A high-efficiency LED driver (https://www.digikey.com/en/products/detail/texas-instruments/TPS61169DCKR/5048578). SI4732 Radio Breakout: An AM-FM-SW-LW-SSB radio receiver module (https://www.digikey.com/en/products/detail/skyworks-solutions-inc/SI4732-A10-GS/4576679).

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This episode was published on May 26, 2025.

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