qfn

Open hardware: 107 KiCad PCB designs — SMD-to-THT breakout adapters, ATTiny/ATMega/ESP development boards, and a 39-part sensor line on a common JST-SH connector.

L2 R6: WCH 120MHz RISC-V3A USB3.0 SoC (CH569)

9.5mm wide QFN ATtiny1626 + VCNL4200 controller that solders straight onto a WS2812B strip and turns it on when it’s dark and someone is near. The little brother of WaveLight.

A collection of SMD breakout board designs (SOIC, TSSOP, QFN) to 2.54mm DIP headers for rapid prototyping and breadboarding.

SMD prototyping breakout panel - snap-apart adapter boards (SOIC, SOT, QFN) for hand-soldering SMD parts to 2.54 mm THT grid. Bare PCB.