RTC?

Aussie_john

just wondering if anyone has any advice on how to add a real time clock to the board as I couldn't find any mention of the firefly having a battery onboard?

busybee

No RTC battery on board, but have pads reserved.

Please check J14 (RTC_BAT+), J15 (RTC_BAT-) in the position reference file at:

http://www.t-firefly.com/download/firef ... 30_pos.pdf

leungtek

just wondering if anyone has any advice on how to add a real time clock to the board as I couldn't find any mention of the firefly having a battery onboard?

yes , it support rtc , hardware need to do a little change .

solid

might be possible with an arduino RTC module.

Aussie_john

Thanks, I must have missed it the first time I checked the board diagrams. I assume I can just solder some wires and connect a normal coin battery?

solid

Aussie, busybee posted the interface, as I understand it - you may need to recompile source to turn the ports on...

sounds like an arduino RTC will fit the bill

busybee

These are pads, not gpio ports. They should be connected to normal coin battery

Aussie_john

thank you