Eval¶

• Pressing On-button must switch 240V line

• Battery driven?
  • Will there be an plumbum battery or only regular powersupply
• A simple 1,5V Alkali will do.
• Button can handle 240V
• An 18650 is perfect. Along with the MCP73871 or only MAX1811ESA+. No integrated LDO necessary, only SSR is switched. AUR9811DGD only 33 Cents.
• An 18650 is way too big. We only flash the LED for a short time. Ne Knopfzelle wuerde es tun.

• Single-Button can be realised by bringing signal to mosfet along with diodes
• Simple STM32F042 can be used
• Mini-USB connector for direct charge.
• 5V AC/DC Wandler integrieren; 5W, >80% efficienty; Keine Schnelladestation, nur effiziente powerline.
• Strom messen; STM32-32K-Variante sinnvoll; sinnvoller wie Akku messen der eh bestromt wird wenn geraet eingeschalten ist.
  • Liegt altes Design noch wo rum?
• USB A Buchsen; 1 Stueck on Board, Terminal fuer weitere 4 via Kabel
• Timeout
  • Buzzer fuer intervention, startup, shutdown. Hab ja noch genug rumflitzen.