Day 1

Idea

unas (pronounced “micro‑NAS”) is a powerful, flexible network‑attached storage system with the following features:

• Embedded UPS
• User‑friendly interfaces: USB‑C for power, USB‑A for drives, Ethernet; supports 18650 batteries
• Compact size
• Powerful, inexpensive single‑board computer

Parts

Project components:

• NanoPi R4S
• Embedded UPS:
  • 5 V UPS Module
  • 18650 battery holder
  • Two INA219 modules for monitoring
• 0.91″ OLED display for a small dashboard
• Touch button (TTP223) for scrolling in the OLED UI
• Two fans (for CPU cooling and in‑case air circulation)
• Heatsink for the SBC’s CPU

Additional Items

These components are used alongside the project but are not part of the core build: * HDDs (WD Elements × 2) * Power adapter (5 V, 3 A)

Time spent: 2 hours.

Day 2

Features: - Batteries case - INA 219 x 2 - Stands

Time: 1,5 hours.

Day 3

Changes: - Realistic mock for UPS module (sizes was gotten fron an item photo) - Cooling holes - Power connector pocket

Time: 3.5 hours

Day 4

Updates: - new cooling holes Currently I'm working on Nano Pi R4S 3D model...