Ideas for Hardware v2

There will be a hardware revision 2 with the following changes

Hardware:

• Hole for battery connector ( Currently you have to plug in the connector before soldering the ESP )
• SD Card for local logging
• RTC Module
• Condensator on current pins

Software:

• Local recording to SD
• Local caching, if Gateway is not reachable
• Timesync via LORA
• RabbitMQ instead of webhook between ChirpStack and API