DIGWDF ESP/XBee Snap-In Panduan Pengguna - Halaman 4

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Assembly

Depending on how you plan to use the adapter, simply follow the normal rule-of-thumb for

assembling electronic projects: install the parts by their height starting with the shortest and

graduating to the tallest parts.



Determine how the snap-in will be used first, then select the parts necessary for your

application.



Sort the parts into shortest to tallest order, then install them.



3.3v regulator – 3 types are available; be sure to mount your choice in the proper position,

matching the outlines on the PCB:

o The UA78M33 regulator's position is marked with small dots

o The LM1117T regulator's position is marked with small triangles

o The LM78L33 regulator is near the TOP of the PCB; be sure to

orient the

Setting the ESP Circuit Connection (Does not apply if using an XBee)

Depending on which version of the ESP firmware you use, you will need to connect two circuit pads

on the Snap-In with a blob of solder. The ESP module will send data to your controller unless you do

this step properly. You may apply the blob of solder on either the top or bottom side of the PCB.



If you use Bill Porter's original ESPixelStick Firmware for the ESP module,

connect the two pads marked 'TX'. This sends the data to the controller via

the ESP's TX pin. (Bill Porter was instrumental in adding both Renard and

DMX serial capability to Shelby Merrick's ESPixelStick firmware. At the time

of this writing, he is working on a new version.)



If you use Shelby Merrick's newest ESPixelStick firmware, connect the two

pads marked '2'. This sends the data to the controller via the ESP's GPIO-2

pin. (Shelby Merrick's original version of the firmware did not include the

Renard or DMX serial options; Bill Porter added them. In Shelby's version 2

update, the firmware still used the GPIO-2 output port.)



An option to use GPIO-0 is provided although no firmware currently uses this pin for output

and it's reserved for future use; do not solder across the '0' pins.

DIGWDF XBee/ESP Snap-In Assembly & User Guide – v 20170308 -Page 4