2. PINOUT
By closing the solder bridge J1, the voltage converter on the board is
bypassed and the board is directly supplied via the microUSB voltage or
the VCC pin. This also allows the operation from as low as 2.7 V.
The logic level of the module then also corresponds to the supply
voltage.
Attention!!! With closed solder bridge the module may only be supp-
lied with max. 5.5 V!!!
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