Rich peripherals on board including:
OLED display: Visual data display without connecting to PC,
which enables debug in a more ecient way, and builds
application such as a sensor hub, data monitor system, etc.
RESET button: No more jumper wire and short circuit, easy
reset with just one click.
SWD debug: SWD pin led out as male pin header, making
debugger connection and rmware download much easier.
High precision RTC: High precision real-time clock with battery
backup, enable maintain accurate time when the main power is
turned off.
Expandable memory: With a MicroSD card slot on the back, no
worry on memory limit any more when adding libraries and
using circuit python.
User button: Besides the RESET button, also provide with
another user-dened button.
Passive buzzer: Same passive buzzer on Wio Terminal, with
which you could change the PMW frequency to award different
beep sound to get a "buzzer music".
Grove connectors: All pin led out, plug and play grove
connectors support common data protocols (Grove IIC*2,
Grove UART*1, A0/D0 Grove*1)
Lipo Battery Charging: JST2.0mm standard lipo battery
connector and battery management system, supports both USB
and lipo battery power supply, and easy onboard battery
recharge.
