I have a project (detailed below) and need relevant information to get started.
In particular, the most important for me is
Information about running system from 5V and charging a connected Lipo Battery (Can this be used to just back up the ram/clock and not run the device)?
What jumper settings are required to set this up?
Are there any Eagle PCB files for Hologram Dash available?
Does the device have RTC onboard or can it get current time/date from cloud and use battery backed system operation to keep clock up to date until cloud available to resynch time?
Details of what I want to achieve:
The devices will be installed onto vehicles.
Data records from another of our products will be received from the serial port
Each data record must be Date/time stamped and saved to SD card
If web cloud is available then all records are published and SD card file cleared
When vehicle is switched off, the system need to keep RTC running.