Pycom WiPy 3.0 Manual page 34

1.1.1 SiPy
Once you have completed the above steps successfully you should see the on-board LED
blinking blue. This indicates the device is powered up and running.
Firstly you will need to connect power to your SiPy. You will need to supply
to the pin. Note: Do not feed
Vin
damage the regulator.
The connect the
respectively. Note: Please ensure you have the signal level of the UART adapter set to
before connecting it.
3.3v
In order to put the SiPy into bootloader mode to update the device firmware you will
need to connect
make this simpler.
Note: This method of connection is not recommended for first time users. It is possible to
lock yourself out of the device, requiring a USB connection.
3.3v
and of your USB UART to the
RX TX
to . We recommend you connect a button between the two to
P2 GND
directly to the supply pin, this will
3.3v
and
TX
-
3.5v 5.5v
of the SiPy
RX
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