Seeed Studio XIAO Expansion board - 5V with 3,7V Battery

Products & Technology XIAO
#1

Hello,

by using a 3,7V Battery, is there still a 5V Power Supply on the Board? I need it for a Relais, which are always working with 5V.

Thanks for Help!

#2

There is an ETA1038 boost converter on the expansion board … see the schematic
expansiong board schematic

You will need to verify the current available for your particular use.