Planned Features

• Business with contact information and QRCode for website
• Credit card size of 85.5x54mm
• 3.2mm thickness including 1mm PCB
• It is a clock/watch with 12 Charlieplexing LEDs
• It is also a ATtiny3227 development board with all the pins (22-GPIO pins) break-out. Programmable with megaTinyCore as an Arduino or with bare metal with just VSCode and avrdude. 
• Powered by a CR2016 coin cell battery (98mAh)
• Designed for low-power with battery life for year(s).
• Cheap to produce, target BOM cost of less than $10.