The LCD FeatherWing is a low power display module compatible with Adafruit’s Feather line of development boards. After three years of learning product design and electrical engineering, I believe this little gadget represents my most mature design to date. It’s a simple, streamlined design with a custom LCD, optimized for low BOM cost and easy manufacturability. By plugging in to the Feather ecosystem, I also felt confident that it would find market fit relatively quickly.

Sensor Watch is a bridge between eras. It takes an iconic 30-year-old design from a golden age of digital watches, and pairs it with a modern, powerful microcontroller and state-of-the-art sensing capabilities. This small circuit board, less than an inch in diameter, replaces the original quartz movement in a Casio F-91W or A158W watch to put the capabilities of an ultra-low-power ARM Cortex M0+ microcontroller on your wrist.

The SIGILANCE project predates Oddly Specific Objects by nearly a decade, but it was my first foray into making physical objects. As a product it was a monumental flop, but I learned a great deal from the failure. For posterity’s sake, the original writeup is preserved below with minor edits.